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

If the resultant force is zero, then an object is at rest.

TRUE

FALSE

2 / 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

3 / 10

Marvin the Martian fires his gun horizontally at Bugs Bunny at a height of 60 cm. It fires at 550 ms^-1, but misses. Calculate how far away from Marvin the shot lands. g_Mars = 3.71 ms^-2

67.3 m

177.9 m

192.4 m

312.8 m

4 / 10

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

Scalar

Vector

5 / 10

Select effect on V_out when the light intensity increases on this circuit.

V_out increases.

V_out decreases.

V_out remains constant.

6 / 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

7 / 10

Which graph best represents the resistance of an NTC thermistor?

8 / 10

Photons are an example of light as a __________.

Wave

Particle

9 / 10

Polarisation only occurs with which type of waves?

Transverse Wave

Longitudinal Wave

10 / 10

What is 40011 to 2 significant figures.

40000

40001

40010

40011

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 0.0000176700 to 2 significant figures.

0.000017

0.0000177

0.000018

0.0000180

2 / 10

What is 84937 to 4 significant figures.

84900

84930

84940

85000

3 / 10

Which is the SI unit for time?

hour

parsec

second

4 / 10

Which is the SI unit for the amount of a substance?

kilogram

mole

litre

5 / 10

Which unit measures pressure?

newtons

kilograms

pascals

6 / 10

Which unit measures frequency?

seconds

metres

hertz

7 / 10

What multiple of unit does kilo (k) have?

1 x 10³

1 x 10⁶

1 x 10 ⁹

8 / 10

What multiple of unit does milli (m) have?

1 x 10^-3

1 x 10^-6

1 x 10 ^-9

9 / 10

How could you reduce percentage uncertainty?

Take multiple measurements and find an average.

Measure larger quantities.

Measure smaller quantities.

Use equipment with a larger uncertainty value.

10 / 10

The radius of a cheesecake in the staff room is 7.5 ±0.5 cm, what is the percentage uncertainty for the area of the cheesecake?

3.34%

6.67%

13.34%

44.49%

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

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

2 / 10

A mini-cannon of mass 35.5 kg fires a turnip of mass 1.2 kg. If the turnip leaves the cannon at 214 ms^-1 over 0.3 s, with what force does the mini-cannon recoil?

43 N

257 N

360 N

856 N

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

Which of the following quantities has the same unit as the rate of change of momentum?

energy

weight

work

acceleration

5 / 10

Select the best statement for Newton's 2nd Law

An object will remain at rest or at a constant velocity unless acted on by a resultant force.

The rate of change in momentum of a body is directly proportional to the resultant force applied.

An object will remain at rest unless acted on by a resultant force.

When two objects interact they will exert equal and opposite forces on each other.

6 / 10

The SI unit for a Newton is _______ .

kgs^-1

kgms^-1

kgms^-2

7 / 10

A school decided to go paintballing for staff team building. The Head of Science aims her paintball gun horizontally 1.6 m above ground at the Headteacher, launching the paintball at 92 ms^-1. She hits him on his thigh, 90cm from the ground. Calculate the distance away the Headteacher was stood. g_Earth = 9.81 ms^-1

34.8 m

39.4 m

52.5 m

65.7 m

8 / 10

A train leaves the station and accelerates at a constant rate, a. After time t its velocity is v. What was the trains velocity at 4t?

[1] √4 v

[2] 0.25 v

[3] v²

[4] 4v

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: momentum

Scalar

Vector

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

V_out increases.

V_out decreases.

V_out remains constant.

2 / 10

Calculate the current at A₂ in the circuit shown.

0.13 A

0.75 A

1.5 A

2.5 A

3 / 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

4 / 10

When the LHC is full operational in the summer months, it accounts for 115 MW of CERN's 200 MW requirements. Calculate the total energy transferred over 28 days for the LHC.

2.78x10¹⁴ J

3.81x10¹⁴ J

4.84x10¹⁴ J

7.62x10¹⁴ J

5 / 10

Which of these circuit symbols represents an LDR?

6 / 10

If the area (A) of a material was to doubled, what would the resistance be?

R/2

R²

7 / 10

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

0 V

3.6 V

6 V

8.4 V

8 / 10

The current in a circuit depends on the mean drift velocity of the charge carriers. This can be defined by this equation, what is the current if the mean drift velocity of charge carriers halves?

I/2

I²

9 / 10

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

It doesn't need connected to the circuit.

In parallel to the battery.

In parallel to the component you want to know the current through.

In series.

10 / 10

The unit for charge is Coulombs, what is this in SI base units?

A s^-1

A s

A s²

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

When the temperature increases, what is the effect on fluids' viscosities?

Gases become less viscous, liquids become more viscous.

Gases become more viscous, liquids become less viscous.

Gases and liquids become less viscous.

Gases and liquids become more viscous.

2 / 10

A steel ball bearing is dropped into a fluid and travels 60 cm in 2.53 s. The diameter of the ball bearing is 6 mm and its mass 15.3 g. Calculate the viscosity of the fluid. g=9.81 Nkg^-1

1.1 Pa s

5.6 Pa s

11.2 Pa s

56.0 Pa s

3 / 10

Which diagram is showing laminar flow?

4 / 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.

5 / 10

The Young's Modulus for a single walled carbon fibre nanotubes of diameter 4 nm is 1000 GPa. If it is placed under 75% strain, what force is required to break it?

3.8x10^-6 N

9.4x10^-6 N

3.8x10³⁰ N

9.4x10³⁰ N

6 / 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.

7 / 10

The graph above shows a wire being extended by adding masses. Estimate from the graph the Young's modulus.

0.67 Jm^-3

1.50 Jm^-3

192 Jm^-3

384 Jm^-3

8 / 10

Select the graph with the correct labels.

9 / 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.

10 / 10

Estimate k from the graph shown above.

3.75 Nm^-1

5 Nm^-1

37.5 Nm^-1

50 Nm^-1

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

The h in E = hf represents:

Number of photons

Planck constant

Boltzmann constant

Intensity of light

2 / 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.

3 / 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

4 / 10

Where is the brightest maxima located?

zero order

1st order

2nd order

nth order

5 / 10

Diffraction is an example of light behaving as a __________.

Particle

Wave

6 / 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

7 / 10

A focal point for a concave lens is 150 mm away from the lens. An object is then placed 7.5 cm from the lens. Calculate the distance the image is from the lens.

7.89 mm

78.94 mm

18.75 mm

187.5 mm

8 / 10

Which lens causes light to diverge?

Convex

Concave

9 / 10

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

Constructive interference

Destructive interference

None

10 / 10

Which wave is being described here: The motion of energy is perpendicular to the direction of travel.

Transverse Wave

Longitudinal Wave

Your score is

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