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

What multiple of unit does tera (T) have?

1 x 10⁹

1 x 10¹²

1 x 10 ¹⁵

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

What is the vertical component if F is applied at θ to the horizontal.

4 / 10

Neil Armstrong uses a catapult to horizontally shoot a rock at Buzz Aldrin on the Moon from a height of 2 m. He misses and it lands at Buzz's feed, 20 m from where it was fired.

Calculate the velocity the rock was fired at from the catapult. g_Moon = 1.62 ms^-2

1.6 ms^-1

8.1 ms^-1

12.7 ms^-1

31.4 ms^-1

5 / 10

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

V_out increases.

V_out decreases.

V_out remains constant.

6 / 10

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

V_out increases.

V_out decreases.

V_out remains constant.

7 / 10

Calculate the current at A₁ in the circuit shown.

0.21 A

0.51 A

0.79 A

1.37 A

8 / 10

The equation E = hf is an example of light as a __________.

Wave

Particle

9 / 10

The Photoelectric Effect is an example of light as a __________.

Wave

Particle

10 / 10

Light passes from air through a glass container and into olive oil. Select the diagram that best shows this. Refractive indexes are as follows: glass = 1.52 and oil = 1.47

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 1994?

2 / 10

What is 1291 to 2 significant figures.

1000

1200

1290

1300

3 / 10

Which is the SI unit for temperature?

kelvin

celsius

fahrenheit

4 / 10

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

kilogram

mole

litre

5 / 10

Which unit measures force?

Newtons

kilograms

pascals

6 / 10

What multiple of unit does kilo (k) have?

1 x 10³

1 x 10⁶

1 x 10 ⁹

7 / 10

What multiple of unit does centi (c) have?

1 x 10^-1

1 x 10^-2

1 x 10 ^-3

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

Identify the independent variable: Investigating the time taken for different sized balls to fall.

Time taken to fall

Size of ball

Gravitational Field Strength

10 / 10

A student places an item onto a balance in order to obtain its mass. They record the mass as 12.54 g. What’s is their absolute uncertainty for the mass reading?

± 0.01 g

± 0.02 g

± 0.1 g

± 0.125 g

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

Select the SI unit for Energy.

Js^-1

m kg s^-1

m²kg s^-2

m²kg s^-3

2 / 10

A student moves a table in class by pushing it at an angle of 11° with a force of 200 N. Calculate the vertical component.

38.1 N

38.2 N

196.3 N

196.4 N

3 / 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.

4 / 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

5 / 10

A shotput is launched on sports day by the strongest Y7. She throws it at an angle of 30° at a speed of 18 ms^-1, releasing it at a height of 1.9 m. Calculate how far she throws it. g_Earth = 9.81 ms^-2

1.72 m

2.98 m

18.23 m

31.58 m

6 / 10

A paratrooper jumps from an aircraft. Assuming no air resistance, she accelerates due to gravity for 12 seconds before deploying her parachute. Calculate how far she falls from the aircraft until she deploys her parachute.

27 m

59 m

117 m

706 m

7 / 10

A diver steps off the end of the 10 m board, free falls, then hits the water before travelling underwater 4 m in 2 seconds. Calculate his speed upon hitting the water. g = 9.81 ms^-2

5.09 ms^-1

8.00 ms^-1

14.01 ms^-1

19.62 ms^-1

8 / 10

A nurse journeys through a hospital ward on a crash call. From a stationary position, he takes 16 seconds to complete the 60 m corridor. Calculate his acceleration.

0.47 ms^-2

1.88 ms^-2

3.75 ms^-2

7.50 ms^-2

9 / 10

A scuba diver surfaces after a dive. She begins to swim towards the boat at a constant speed of 67 cms^-1 and due to a current in the water this takes her 70 seconds an an angle of 32°. Calculate the time taken if there was no current at the same speed.

40 s

47 s

59 s

67 s

10 / 10

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

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

The unit of resistivity is the ohm-metre. A correct alternative unit is:

AmV^-1

VmA^-1

VAm^-1

Am^-1V^-1

2 / 10

The unit of potential difference is the volt. A correct alternative unit is:

CΩ^-1s^-1

ΩC^-1s^-1

CΩs

CΩs^-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

The current at A₁ is 4 A and the current at A₂ is 1 A. Select the current at A₄.

1 A

2 A

3 A

4 A

5 / 10

Plotting a graph of V against I, what is the gradient equal to?

-r

-Ɛ

6 / 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

7 / 10

Which graph best represents the I-V characteristic graph of a metallic conductor at a constant temperature?

8 / 10

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

R/2

R²

9 / 10

The unit for potential difference is Voltage, what is this in SI base units?

m² kg s^-3 A^-1

A s

J s^-1 A^-1

10 / 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

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 undertaking practical work to measure the viscosity of liquid, why should the marker the signifies timer start be approximately halfway down the tube?

To reduce the percentage error.

To reduce the human error.

To allow the ball bearing to reach terminal velocity.

All of the above.

2 / 10

A unknown material under load 75 N incurs an extension of 2.1 mm. The original length of the material was 1.75 m and it has a diameter of 0.45 mm. Which material is it most likely to be?

Acrylic

Gold

Nickel

Tungsten

3 / 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

4 / 10

Select the graph with the correct labels.

5 / 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

6 / 10

A stress-strain graph is shown above for an unknown material. Where on the curve would you mark the UTS point?

7 / 10

Two springs attached in series extend by 5 cm when a load of F is applied to them. They have different constants of 76 Nm^-1 and 31 Nm^-1 respectively. Calculate the value of F.

1.1 N

2.7 N

5.4 N

10.6 N

8 / 10

At which point on the graph shown above is the elastic limit?

9 / 10

A meteor traveling through space has a k = 4.2x10⁶ Nm^-1 and a force of 5x10⁸ N. Calculate the extension of the meteor.

8.4x10^-3 m

8.4 m

11.9 m

119.0 m

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

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

Electrons can show can show wave light properties.

TRUE

FALSE

3 / 10

Select the correct description of an absorption line spectrum.

Continuous dull spectrum with white lines across it.

Continuous dull spectrum with dark lines across it.

Continuous bright spectrum with white lines across it.

Continuous bright spectrum with dark lines across it.

4 / 10

The work function of an unknown metal is 1.2 eV. Light with energy 3 eV is incident on its surface, calculate the wavelength of the light.

6.63x10^-26 m

7.24x10^-14 m

4.14x10^-7 m

4.52x10³³ m

5 / 10

What is the effect on the emission of electrons the frequency of the incident light was increased?

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.

6 / 10

Electrons are accelerated through a potential difference of 230 V. Calculate their velocity.

3.68x10^-7 ms^-1

21 ms^-1

8.89x10⁷ ms^-1

7.91x10¹³ ms^-1

7 / 10

In the context of electrons in atoms, what is excitation?

Enough energy is absorbed by an electron causing it to move to a higher energy level.

Enough energy is absorbed by an electron causing it to break free of the atom.

Enough energy is absorbed by an atom causing it to release all its electrons.

Enough energy is absorbed by an atom causing all its electrons to move up an energy level.

8 / 10

The greatest amount of diffraction occurs when _________.

The gap is half the size of the wavelength.

The gap and the wavelength are the same size.

The gap is twice the size of the wavelength.

The gap doesn't affect diffraction.

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

Select on the diagram which arrow represents the wavelength of the wave.

Your score is

Recent Posts

Categories