Category: Physics

Physics Year 12 Random Retrieval

This quiz contains all the questions in the Physics Year 12 section. The website will pick 10 questions at random.

1 / 10

A bullet of mass 4.02 g is fired at a speed of 940 ms^-1 from an SA-80 rifle. The bullet strikes a block of hardwood of mass 0.512 kg hanging at rest from a long string. The bullet enters the wood and becomes lodged in the block. Calculate the initial speed the wooden block from rest immediately after impact.

1.28 ms^-1

1.84 ms^-1

7.3 ms^-1

73.2 ms^-1

2 / 10

An ill prepared student asks for a pen to write with in class, and the teacher grudgingly lends one out. Instead of walking over to the student, the teacher decides to throw them the pen. The teacher throws the pen at angle of 14° and a speed of 23 ms^-1. Sadly, the teacher misses and the pen continues on it's projected path out the window and takes 5 seconds to hit the car park outside.

Calculate the height different between the point of release and the car park floor. g_Earth = 9.81 ms^-2

95 m

96 m

112 m

123 m

3 / 10

Select if the following is a scalar or a vector: time

Scalar

Vector

4 / 10

The ship, Queen Elizabeth 2, was a cruise ship from 1969-2008. She currently resides in Mina Rashid, Dubai as a floating hotel. When fully laden she held 70,327 tonnes and therefore displaces that weight of fluid when afloat. If the the density of seawater is 1024 kgm^-3, calculate the upthrust exerted on the ship when she was afloat fully laden. g = 9.81 NKg^-1

6.7x10⁵ N

6.9x10⁸ N

7.1x10⁸ N

7.1x10¹¹ N

5 / 10

In order to calculate viscous drag (F), the equation above is used. What is a unit for η?

Nkg^-1

Nms^-1

Nkgm^-1

Nsm^-2

6 / 10

What is Young's modulus a measure of?

The ductility of a material.

The tensile strength of a material.

The stiffness of a material.

The brittleness of a material.

7 / 10

Two nichrome wires, A and B, have a load of 30 N placed on them each. The original lengths of the wires are 3 m and 2 m. Each wire shows the same extension. Find the ratio of A_k to B_k.

1 : 1

3 : 2

1.5 : 1

Unable to calculate from information given.

8 / 10

The electromagnetic spectrum is an example a ____________.

Transverse wave

Longitudinal wave

9 / 10

For the first electron to be liberated from a helium atom 24.6 eV of energy is required. Calculate the frequency of light needed.

2.70 x10^-35 Hz

5.94x10¹⁵ Hz

1.68x10¹⁶ Hz

3.71x10³⁴ Hz

10 / 10

An image of a perfectly circular object of radius 25.8 cm is projected onto a screen. The object is also perfectly circular and has an area of 16.3 cm. Calculate the magnification on the lens.

1.58

5.24

32.6

128.9

Your score is

Waves and the Nature of Light Random Retrieval

Waves & the Nature of Light Random Retrieval

This quiz contains all the questions in the Waves & the Nature of Light section. The website will pick 10 questions at random.

1 / 10

Which is the correct chronological of discoveries from these scientists?

Newton, Planck, Hertz and Hallwachs, Young

Young, Newton, Planck, Hertz and Hallwachs

Newton, Young, Planck, Hertz and Hallwachs

Newton, Young, Hertz and Hallwachs, Planck

2 / 10

The Young’s double slit experiment is an example of light as a __________.

Wave

Particle

3 / 10

Hot gases produce ___________.

Line Absorption Spectra.

Line Emission Spectra.

Band Absorption Spectra.

Band Emission Spectra.

4 / 10

Select the definition of the electron volt.

An electronvolt is equal to the electrical energy of an electron when it is accelerated through a potential difference of one volt.

An electronvolt is equal to the potential energy of an electron when it is accelerated through a potential difference of one volt.

An electronvolt is equal to the kinetic energy of an electron when it is accelerated through a potential difference of one volt.

An electronvolt is equal to the total energy of an electron when it is accelerated through a potential difference of one volt.

5 / 10

BBC Radio Sheffield West Midlands broadcasts on 97.4 MHz. Calculate the wavelength of the radio waves.

0.32 m

3.08 m

33.35 m

318.67 m

6 / 10

Diffraction is an example of light behaving as a __________.

Particle

Wave

7 / 10

Why is cladding is required in fibre optics?

Avoid the loss of signal

Required to ensure total internal reflection

Protect the cable from damage

All of the above

8 / 10

Two coherent, in phase waves have a path difference of 3λ. What kind of interference occurs?

Constructive interference

Destructive interference

None

9 / 10

The image above shows two wave fronts before, during and after meeting. What is this an example of?

Constructive interference

Destructive interference

Stationary wave

10 / 10

Calculate the frequency of a wave travelling at 500 ms^-1 with a wavelength of 25 m.

0.05 Hz

20 Hz

1.25 kHz

12.5 kHz

Your score is

Physics Random Retrieval Y12

Physics Year 12 Random Retrieval

This quiz contains all the questions in the Physics Year 12 section. The website will pick 10 questions at random.

1 / 10

Select the correct definition for the phrase "Dependent Variable"

what is changed in an investigation

what is kept the same

what is measured

2 / 10

1.28 ms^-1

1.84 ms^-1

7.3 ms^-1

73.2 ms^-1

3 / 10

Select the effect on V_out when the surrounding temperature increases for circuit.

V_out increases.

V_out decreases.

V_out remains constant.

4 / 10

In this diagram, what should the potential difference of the cell be?

0 V

3.6 V

6 V

8.4 V

5 / 10

A head torch used on a D of E expedition is rated at 3W with a 3.7 V battery, how many electrons pass through in the 5 minutes it takes for a return trip to campsite bathroom at night?

5.07x10¹⁸ electrons

1.30x10¹⁹ electrons

3.04x10²⁰ electrons

1.52x10²¹ electrons

6 / 10

The charge on an electron is 1.60x10^-19 C. Calculate how many electrons are needed to create a charge of 4.2 C.

1.42x10^-19

2.84x10^-19

2.63x10¹⁹

5.25x10¹⁹

7 / 10

A ball bearing of diameter 5.6 mm is dropped into a liquid which has a viscosity of 5.4 Pa s and a density of 1.38 kgL^-1. In the liquid, it reaches a terminal velocity of 0.023 ms^-1. Calculate the mass of the ball bearing. g=9.81 Nkg^-1

0.055 g

0.059 g

0.541 g

0.589 g

8 / 10

An small child's toy is 4 cm from a lens with focal length of 6 cm. How far away from the lens is the image formed?

0.67 cm

1.5 cm

2.4 cm

12 cm

9 / 10

This image shows a cross section of fibre optic cable. Select why the ray enters the cladding.

The angle of incidence is greater than the critical angle

The angle of incidence is less than the critical angle

The angle of refraction is greater than the critical angle

The angle of refraction is less than the critical angle

10 / 10

Two coherent, in phase waves have a path difference of 3λ. What kind of interference occurs?

Constructive interference

Destructive interference

None

Your score is

Working as a Physicist Random Retrieval

This quiz contains all the questions in the Working as a Physicist section. The website will pick 10 questions at random.

1 / 10

What is 4.9999 to 3 decimal places.

4.9900

4.9990

4.999

5.000

2 / 10

Which is the SI unit for current?

volts

ampere

joule

3 / 10

Which unit measures pressure?

newtons

kilograms

pascals

4 / 10

Which unit measures frequency?

seconds

metres

hertz

5 / 10

Which unit measures electric potential difference?

amperes

volts

ohms

6 / 10

What multiple of unit does micro (μ) have?

1 x 10^-3

1 x 10^-6

1 x 10 ^-9

7 / 10

What multiple of unit does giga (G) have?

1 x 10⁶

1 x 10⁹

1 x 10 ¹²

8 / 10

What is 3.2 cm in nanometres?

3.2 x 10^-3 nm

3.2x10⁷ nm

3.2 x 10^-9 nm

9 / 10

Select the correct definition for the phrase "Dependent Variable"

what is changed in an investigation

what is kept the same

what is measured

10 / 10

What is a fair test?

A fair test is when only the independent variable has been allowed to affect the dependent variable.

A fair is when you repeat the experiment until you have concurrent results.

A fair test is when results are taken three times and an average is found.

Your score is

Mechanics Random Retrieval

This quiz contains all the questions in the Mechanics section. The website will pick 10 questions at random.

1 / 10

A window cleaner leans her ladder against a vertical wall in order to start work. The ladder has a length of 6 m and mass of 15 kg, she places it at an angle of 50°. Calculate the reaction force from the wall at W. g=9.81 ms_-2

8.9 N

61.7 N

87.7 N

123.5 N

2 / 10

The Shenzhou (Chinese: 神舟) re-entry capsule has a of mass 7840 kg falling through the atmosphere at a steady velocity of 1.75x10⁴ Mph. Calculate its kinetic energy. g = 9.81 ms^-2, 1 Mile = 1.6 km

3.05x10⁷ J

2.37x10¹¹ J

1.19x10¹² J

1.19x10¹⁵ J

3 / 10

1.28 ms^-1

1.84 ms^-1

7.3 ms^-1

73.2 ms^-1

4 / 10

A 15 N force is applied to a 2.3 kg mass for 8 seconds. Calculate its initial momentum.

15.0 kg ms^-1

18.4 kg ms^-1

34.5 kg ms^-1

120.0 kg ms^-1

5 / 10

Chen Ruolin and Liu Huixia won Gold for China at the 2016 Rio Olympics for their synchronised 10 m platform dive. They have a mass difference of 9 kg but hit the water at the same time, which Newtonian Law applies, if any?

Newton's First Law

Newton's Second Law

Newton's Third Law

None

6 / 10

You can feel your phone in your hand, which Newtonian Law applies, if any?

Newton's First Law

Newton's Second Law

Newton's Third Law

None

7 / 10

Estimate the displacement shown on this velocity-time graph for a Y7 trying to find a classroom during their first week in secondary.

36 m

45 m

60 m

63 m

8 / 10

Select the statement that best describes what is happening at point X.

Object is travelling at constant velocity.

Object is stationary.

Object is accelerating constantly.

Object is accelerating.

9 / 10

This graph shows a falling object at its terminal velocity. Calculate its velocity.

0.75 ms^-1

0.78 ms^-1

1.5 ms^-1

1.56 ms^-1

10 / 10

A house attached to lots of balloons takes flight at 5.20 ms ^-1 and, due to a cross wind, at an angle of 56° from the horizontal. What would it's vertical speed be assuming there was no wind.

1.59 ms^-1

2.91 ms^-1

4.31 ms^-1

8.11 ms^-1

Your score is

Electric Circuits Random Retrieval

This quiz contains all the questions in the Electric Circuits section. The website will pick 10 questions at random.

1 / 10

The unit of current is the ampere. A correct alternative unit is:

JΩC^-1

J^-1ΩC

JΩ^-1C^-1

JΩ^-1C

2 / 10

The unit of current is the ampere. A correct alternative unit is:

VΩ

VΩ^-1

V^-1Ω^-1

ΩV^-1

3 / 10

Calculate the total resistance of the circuit shown.

0.62 Ω

1.6 Ω

5 Ω

15 Ω

4 / 10

A battery of e.m.f. 1.5 V with an internal resistance of 0.5 Ω is connected in series to a 5 Ω resistor. Calculate the current in the circuit.

0.12 A

0.25 A

0.4 A

3.6 A

5 / 10

A 12 Ω and a 10 Ω resistor are connected in series with a battery of e.m.f. 6 V and internal resistance 2 Ω. Calculate the potential difference over the battery.

0.25 V

2.5 V

5.5 V

8.5 V

6 / 10

The unit for energy is the Joule, what is this in SI base units?

m²kg s^-2

m²kg s^-3

m kg s²

Js^-1

7 / 10

Your phone charger supplies a current of 2.1 A and has a power rating of 6 W. What is the potential difference?

0.35 V

1.26 V

2.86 V

12.6 V

8 / 10

The unit for resistance is Ohms, what is this in SI base units?

kg s^-2 A^-1

m^-2 kg^-1 s⁴ A²

m² kg s^-3 A^-1

m² kg s^-3 A^-2

9 / 10

Potential difference is...

The current per second of a closed circuit.

The work done per unit charge moved.

The amount of charge passing a point in a closed circuit per second.

The difference in unit charge either side of a battery.

10 / 10

Which piece of equipment can be used to measure the current in a circuit?

Ammeter

Voltmeter

Oscilloscope

Newton Meter

Your score is

Materials Random Retrieval

This quiz contains all the questions in the Materials section. The website will pick 10 questions at random.

1 / 10

In order to calculate viscous drag (F), the equation above is used. What is a unit for η?

Nkg^-1

Nms^-1

Nkgm^-1

Nsm^-2

2 / 10

A copper wire of diameter 0.6 mm, X, is joined in series to the end of another copper wire of diameter 0.125 mm, Y. Both wires are 80 cm in length when no load is applied. A 15 N load is hung on the end of the wires as shown in the diagram below. If the Young's Modulus of copper is 128 GPa, calculate the extension for each wire.

ExtensionX = 0.3 mm, ExtensionY = 7.6 mm

ExtensionX = 0.4 mm, ExtensionY = 9.5 mm

ExtensionX = 1.4 mm, ExtensionY = 1.6 mm

ExtensionX = 2.3 mm, ExtensionY = 11.9 mm

3 / 10

When investigating Young's modulus, why should you use a long wire?

To help maintain social distancing.

To reduce the absolute uncertainty in your measurements.

To reduce the percentage uncertainty in your measurements.

To reduce random errors.

4 / 10

A 500 mm material undergoes a strain of -3.2%, when measured what is the materials length?

484 mm

492 mm

508 mm

516 mm

5 / 10

Which material on the graph above is the stiffest?

6 / 10

Select the graph with the correct labels.

7 / 10

A new material is developed and the research team want to know the amount of elastic strain energy it can store. They test the material multiple times and plot a graph with the averages. Estimate from the graph the elastic strain energy that is stored in the wire up to the limit of proportionality.

4.0 J

5.85 J

6.75 J

11.7 J

8 / 10

The graph above shows a fishing wire being extended by adding masses. Use the graph to estimate the elastic strain energy of the material.

9.7 J

10.0 J

19.4 J

32.3 J

9 / 10

What is the relationship between the force applied, F, and the extension, x of a material that obeys Hooke's Law?

F = x

F ∝ x

F ≈ x

F = x ^-1

10 / 10

If the deformation of the material is plastic, the material __________.

is plastic.

will shear under high loads.

will not return to its original shape.

will return to its original shape.

Your score is

Waves & the Nature of Light Random Retrieval

This quiz contains all the questions in the Waves & the Nature of Light section. The website will pick 10 questions at random.

1 / 10

Which phenomenon is not an example of light as a wave?

Diffraction

Reflection

Photoelectric effect

Polarisation

2 / 10

If the intensity of incident light was increased on a surface where electrons were already being emitted what would the effect be?

More electrons are emitted from the surface of the metal

Nothing

The same amount of electrons will be emitted from the surface of the metal but with a greater kinetic energy.

Less electrons will be emitted from the surface of the metal but with a greater kinetic energy.

3 / 10

What is meant by the threshold frequency for a metal?

The frequency of light required to cause electrons to eject from any metal at the speed of light.

The frequency of light required to cause electrons to eject from any metal.

The frequency of light required to cause electrons to eject from a specific metal at the speed of light.

The frequency of light required to cause electrons to eject from a specific metal.

4 / 10

Select the missing word: "For ultrasounds, ________ wavelengths produce clearer images".

Shorter

Longer

High amplitude

Low amplitude

5 / 10

Which one of the following types of wave can't be polarised?

gamma

ultraviolet

infrared

ultrasonic

6 / 10

An inverted image is seen 3 times its original size when the object is placed 140 mm front of a convex lens. Calculate the focal length of the lens.

95 mm

105 mm

140 mm

420 mm

7 / 10

A lens has a focal length of 4.8 cm. Calculate the lens' power.

0.21 D

2 D

4.8 D

8.3 D

8 / 10

Why is cladding is required in fibre optics?

Avoid the loss of signal

Required to ensure total internal reflection

Protect the cable from damage

All of the above

9 / 10

A stationary wave at the first harmonic is created on a 40 cm length of string with mass 1.2 kg. The full length of the string is 65 cm and is under tension of 3 N. Calculate the frequency.

0.125 Hz

0.196 Hz

1.25 Hz

1.96 Hz

10 / 10

Mark reads the back label of his microwave oven, it says frequency = 2450 MHz. Calculate the wavelength.

12.2 cm

73.5 cm

1.22 m

122 m

Your score is

Materials Random Retrieval

This quiz contains all the questions in the Materials section. The website will pick 10 questions at random.

1 / 10

In order to calculate viscous drag (F), the equation above is used. What is a unit for η?

Nkg^-1

Nms^-1

Nkgm^-1

Nsm^-2

2 / 10

Stress and strain are used to calculate the Young's modulus of a material up to its _____________.

elastic limit.

limit of proportionality.

yield point.

breaking point.

3 / 10

A material has a stress of 6x10⁸ Nm^-2 and is placed under a 5% strain. Calculate the value for the materials Young's modulus.

1.2x10⁸ Nm^-2

3x10⁹ Nm^-2

1.2x10¹⁰ Nm^-2

3x10¹¹ Nm^-2

4 / 10

A 500 mm material undergoes a strain of -3.2%, when measured what is the materials length?

484 mm

492 mm

508 mm

516 mm

5 / 10

Which material on the graph above is the strongest?

6 / 10

Which material on the graph above is the stiffest?

7 / 10

A wire has a diameter of d and a when a force of F is applied, it breaks at σ. What would the value of σ be if the diameter was halved?

^F/₂

^4F/_A

^F/_2A

^AF/₂

8 / 10

This graph shows the extension of 4 different springs, which spring is the stiffest?

9 / 10

What is another term for tensile deformation?

Extension

The Limit of Proportionality

Compression

The Elastic Limit

10 / 10

A spring extends by 12 cm when a mass of 87 g is attached to it. Calculate the spring constant. g = 9.81 ms^-2

0.01 Nm^-1

0.10 Nm^-1

1.02 Nm^-1

10.24 Nm^-1

Your score is

Electric Circuits Random Retrieval

This quiz contains all the questions in the Electric Circuits section. The website will pick 10 questions at random.

1 / 10

Select a use for this circuit when the temperature fluctuates. Assume V_out is the location of external circuitry

A fan to switch on in warm temperatures.

Street lights to switch on in darkness.

Operate a heater in a reptile house.

A speaker that operates upon sunrise.

2 / 10

Select a use for this circuit when the temperature fluctuates. Assume V_out is the location of external circuitry

A fan to switch on in warm temperatures.

Street lights to switch on in darkness.

Operate a heater in a reptile house.

A speaker that operates upon sunrise.

3 / 10

Calculate the current at A₃ in the circuit shown.

0.55 A

1.37 A

1.43 A

1.5 A

4 / 10

A cell of e.m.f. 3.0 V and internal resistance 0.3 Ω is connected in a series with an ammeter reading 0.25 A and a motorised hula girl who dances when the circuit is complete. Calculate the power supplied by the cell.

0.71 W

0.73 W

0.75 W

0.77 W

5 / 10

An electric motor is used to raise a load. When the switch is closed, the ammeter reads 94 mA and the motor raises a 568 g load through a height of 174 cm in 25 seconds. Calculate the potential difference of the circuit assuming it is 100% efficient. g = 9.81 N kg⁻¹

9.7 V

36.8 V

103.1 V

109.7 V

6 / 10

The unit for energy is the Joule, what is this in SI base units?

m²kg s^-2

m²kg s^-3

m kg s²

Js^-1

7 / 10

Which of these circuit symbols represents a thermistor?

8 / 10

Which graph best represents the I-V characteristic graph of a NTC thermistor?

9 / 10

In this diagram, what should the potential difference of the missing value be?

2 V

4 V

8 V

0 V

10 / 10

How should you connect a potential difference measuring piece of equipment in a circuit?

It doesn't need connecting to the circuit.

In parallel to the battery.

In parallel to the component you want to know the potential difference over.

In series.

Your score is

Mechanics Random Retrieval

This quiz contains all the questions in the Mechanics section. The website will pick 10 questions at random.

1 / 10

A 0.3 m long screwdriver is placed under the circular lid of a paint can and a force of 15 N is applied downward at the end of the screwdriver and the lid opens, pivoting at the opposite side to the screwdriver. The lid has a circumference of 48 cm. Calculate the moment about the open side of the lid.

4.5 N

5.6 N

6.8 N

11.7 N

2 / 10

A 75 N force is applied to the end of a spanner that is 25 cm long. Calculate the size of the moment?

1.875 Nm

18.75 Nm

187.5 Nm

1875 Nm

3 / 10

A 15 N force is applied to a 2.3 kg mass for 8 seconds. Calculate its initial momentum.

15.0 kg ms^-1

18.4 kg ms^-1

34.5 kg ms^-1

120.0 kg ms^-1

4 / 10

Sheffield is famous for its snooker. A 170 g white ball is struck with a cue and travels along the snooker table at 12 ms^-1. Calculate it's momentum.

2.04 kg ms^-1

204 kg ms^-1

2040 kg ms^-1

5 / 10

Lauren Steadman set off on her run as part of the paratriathlon at Rio Olympics. Select the best description for her motion.

Her leading foot exerts a force down on the road, so the road exerts an equal and opposite force upwards.

As she places her leading foot down and pushes up at an angle, a gravitational force pulls her back to earth at the same angle moving her forward.

Her leading foot exerts a force forwards to the road. The road exerts an equal and opposite frictional force backwards.

Her leading foot exerts a force backwards to the road. The road exerts an equal and opposite frictional force forward.

6 / 10

A mug of tea (T_m) is at rest on a table. Select the correct pairing of forces.

Gravitational force pulls (T_m) towards the table. (T_m) pushes on the table in the opposite direction.

(T_m) pushes on the table. The table pushes back on (T_m) in the opposite direction.

(T_m) pulls the table towards it with gravitational force. The table pushes back on (T_m) in the opposite direction.

(T_m) pushes on the table. The table is pulled down by gravitational force.

7 / 10

Four teachers are fighting over the last pack of board pens as shown in the diagram. Calculate the overall resultant force.

62.46 N

62.48 N

104.44 N

106.72 N

8 / 10

A flask of coffee is knocked horizontally from the roof of a car 1.45 m off the ground at 14 ms^-1. Calculate how long it takes to reach the ground. g_Earth = 9.81 ms^-2

0.10 s

0.21 s

0.30 s

0.54 s

9 / 10

A house attached to lots of balloons takes flight at 5.20 ms ^-1 and, due to a cross wind, at an angle of 56° from the horizontal. What would it's vertical speed be assuming there was no wind.

1.59 ms^-1

2.91 ms^-1

4.31 ms^-1

8.11 ms^-1

10 / 10

Select if the following is a scalar or a vector: displacement

Scalar

Vector

Your score is

Working as a Physicist Random Retrieval

This quiz contains all the questions in the Working as a Physicist section. The website will pick 10 questions at random.

1 / 10

How many significant figures are in 4.00013?

2 / 10

Which is the SI unit for time?

hour

parsec

second

3 / 10

Which unit measures frequency?

seconds

metres

hertz

4 / 10

Which unit measures electric charge?

coulombs

ohms

farads

5 / 10

What is 100 MW in gigawatts?

10 GW

1 GW

0.1 GW

6 / 10

What is 3.2 cm in nanometres?

3.2 x 10^-3 nm

3.2x10⁷ nm

3.2 x 10^-9 nm

7 / 10

Select the correct definition for the phrase "Control Variable"

what is changed in an investigation

what is kept the same

what is measured

8 / 10

Select the graph that best represents the algebraic expression: y = mx^-1 + c

9 / 10

Calculate the area under the graph shown above.

67.5

87.5

104.5

10 / 10

A student measures the temperature of boiling water (100°C) with a thermometer with an uncertainty of ± 2°C. Select the range where the true value could be.

98°C - 100°C

99°C - 101°C

98°C - 102°C

100° - 102°C

Your score is

U11.1 – The 4 Types of Nuclear Radiation

102

The Four Types of Nuclear Radiation

1 / 15

Select the correct symbol for Alpha radiation.

2 / 15

Which material is sufficient to stop Beta-minus radiation?

A few cm of air

Paper

A few mm of aluminium

A vacuum

3 / 15

What is not a source of background radiation?

Cosmic radiation

WiFi devices

Rocks

Medical devices

4 / 15

What is a Beta-plus particle?

Positron

Electron

Helium Nucleus

Photon

5 / 15

What is not a cause of instability in the nucleus?

Too few neutrons

Too few nucleons

Too much energy

Too many neutrons

6 / 15

Which of the following is the least ionising?

Alpha

Beta-minus

Beta-plus

Gamma

7 / 15

Select the most appropriate word to complete the sentence: "Radioactive Decay is ____________."

Dangerous

Random

Endothermic

Exothermic

8 / 15

What is the relative charge of an Alpha particle?

9 / 15

What is the range of a Beta-plus particle?

Negligible

The same as Beta-minus

The opposite of Beta-minus

Infinite

10 / 15

What is the relative charge of a Beta-minus particle?

11 / 15

What is the charge of an Alpha particle?

1.6x10^-19

3.2x10^-19

6.4x10^-19

12 / 15

Which of the following is the most penetrating?

Alpha

Beta-minus

Beta-plus

Gamma

13 / 15

What is the fastest moving type of radiation?

Alpha

Beta-minus

Beta-plus

Gamma

14 / 15

What is the charge of an Beta-plus particle?

Negligible

1.6x10^-19 C

-1.6x10^-19 C

15 / 15

Select the correct statement.

The more ionisations, the further the radiation will travel.

The more ionisations, the faster the radiation will travel.

The less ionisations, the faster the radiation will travel.

The less ionisations, the further the radiation will travel.

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Nuclear Radiation

U10.3 – The Doppler Effect

The Doppler Effect

1 / 10

When a light source moves away from an observer, the wavelength becomes ____________.

Shorter

Longer

Stays the same

2 / 10

Which stationary observer will hear a higher pitched sound?

3 / 10

When a light source moves away from an observer, the light undergoes __________.

blueshift

redshift

whiteshift

blackshift

4 / 10

Select the best definition for the Big Bang Theory.

The universe exploded into existence from a single point.

An American TV sitcom centred around scientists.

All matter was originally compacted into a ball with infinite density and intense heat and began expanding.

All matter was originally compacted into a ball with infinite density and intense heat. The matter began expanding and continues to do so to this day,

5 / 10

Andromeda has a redshift of -0.001001, what is it's movement in relation to Earth?

Away from Earth

Towards Earth

Stationary

Can't tell

6 / 10

A galaxy has redshift of 0.19. Estimate the speed it is moving relative to Earth. H₀ = 75 kms^-1MPc^-1. 1 year ≈ 3.16x10⁷s, 1 pc ≈ 3.09x10¹⁶ m, c = 3x10⁸ ms^-1

5.70x10⁷ ms^-1

1.59x10⁹ ms^-1

7.83x10¹⁶ ms^-1

2.35x10²⁵ ms^-1

7 / 10

A galaxy has redshift of -0.32. Estimate the speed it is moving relative to Earth. H₀ = 75 kms^-1MPc^-1. 1 year ≈ 3.16x10⁷s, 1 pc ≈ 3.09x10¹⁶ m, c = 3x10⁸ ms^-1

9.37x10⁶ ms^-1

9.60x10⁷ ms^-1

1.32x10¹⁷ ms^-1

3.96x10²⁵ ms^-1

8 / 10

On this graph, which line represents the density of the universe is less than the critical density?

9 / 10

A galaxy has redshift of 0.48. Estimate the distance it is from Earth in light years. H₀ = 75 kms^-1MPc^-1. 1 year ≈ 3.16x10⁷s, 1 pc ≈ 3.09x10¹⁶ m, c = 3x10⁸ ms^-1

1.44x10⁸ ly

5.49x10⁹ ly

5.93x10²⁵ ly

6.25x10²⁵ ly

10 / 10

Estimate the diameter of the observable universe. H₀ = 75 kms^-1MPc^-1. 1 year ≈ 3.16x10⁷s, 1 pc ≈ 3.09x10¹⁶ m, c = 3x10⁸ ms^-1

1.3x10⁹ ly

2.6x10⁹ ly

1.3x10¹⁰ ly

2.6x10¹⁰ ly

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