AQA GCSE Trilogy Physics Paper 2 Foundation November 2020 question paper 8464/P/2F

Figure 1 shows a girl bowling a ball along a ten-pin bowling lane.

The girl is trying to knock down the ten pins at the end of the bowling lane. As the ball travels along the lane the velocity of the ball decreases.

Velocity is a vector. Which statement describes a vector? Tick (✓) one box.

Why does the velocity of the ball decrease as the ball travels along the lane? Tick (✓) one box.

The ball travels along the lane at an average speed of 4.5 m/s It takes the ball 4.0 seconds to travel the length of the lane. Calculate the length of the lane. Use the equation: distance travelled = speed × time

Figure 2 shows the ball hitting one of the pins.

Draw an arrow on Figure 2 to show the force of the pin on the ball.

The velocity of the pin changes from 0 to 12 m/s It takes 0.15 seconds for the velocity to change. Calculate the acceleration of the pin. Use the equation:

When the pin is struck it accelerates. Complete the sentences. Choose answers from the box. Each answer can be used once, more than once, or not at all.

The displacement of the pin from the girl. The mass of the pin. The kinetic energy of the pin.

Figure 3 shows a computer keyboard. There is a spring under each key.

Why do the keys have springs under them? Tick (✓) one box.

Why does every spring used in the keyboard have the same spring constant? Tick (✓) one box.

Figure 4 shows one of the keys and its spring.

What happens to the length of the spring when the key is pressed?

How far must the key move before it touches the switch? Tick (✓) one box.

If a key is not pressed with enough force, no signal is sent to the computer. Explain why.

The spring in Figure 4 has a spring constant of 200 N/m Calculate the force on the spring when the key moves a distance of 0.0040 m Use the equation: force = spring constant × compression

Suggest two ways the spring in the key in Figure 4 could be changed so that the switch can be closed more quickly.

X-rays and gamma rays are types of electromagnetic waves. X-rays are used for medical imaging.

Which substance will not absorb X-rays? Tick (✓) one box.

Table 1 shows the effect of exposure to different doses of radiation.

During one X-ray a person receives a dose of 0.100 mSv Why is this dose unlikely to harm the person?

A doctor takes an X-ray photograph of a person. When taking the X-ray photograph, the doctor stands behind a screen. Suggest why.

Which of the following are gamma rays used for? Tick (✓) one box.

Why are gamma rays and X-rays harmful to humans? Tick (✓) one box.

Electromagnetic waves are also used in communications. Describe how microwaves and visible light are used in communications.

Figure 5 shows a distance-time graph for 50 seconds of a bicycle ride.

The gradient of the distance-time graph gives the speed of the bicycle. Determine the speed of the bicycle.

Which force acting on the moving bicycle is a non-contact force? Tick (✓) one box.

The bicycle travels a distance of 250 m The bicycle exerts a constant horizontal force of 30 N on the ground. Calculate the work done. Use the equation: work done = force × distance Choose the unit from the box.

The bicycle travels at a constant speed. Complete the sentences. Choose answers from the box.

Figure 6 shows four waves. The waves are drawn to the same scale.

Which wave has the greatest amplitude? Tick (✓) one box.

Which wave has the greatest frequency? Tick (✓) one box.

Which wave has the greatest wavelength? Tick (✓) one box.

A wave has a frequency of 1650 Hz and a wavelength of 0.200 m Calculate the wave speed. Use the equation: wave speed = frequency × wavelength

A student uses a mobile phone app that displays sound waves. Figure 7 shows the student holding the mobile phone close to a loudspeaker.

Figure 8 shows the wave pattern seen on the phone screen.

What is the period of the wave shown in Figure 8 ? Tick (✓) one box.

Determine the frequency of the wave shown in Figure 8. Use the Physics Equations Sheet.

Figure 9 shows five different metal samples.

A student placed a magnet close to each metal sample. Describe what happened.

Figure 10 shows a paper clip being attracted to a permanent magnet.

The paper clip in Figure 10 is not a permanent magnet. Explain what would happen if the paper clip was removed and brought close to the south pole of the permanent magnet.

Write down the equation that links gravitational field strength (g), mass (m) and weight (W).

The student added more paperclips to one end of the magnet. The maximum number of paperclips the magnet could hold was 20 Each paper clip had a mass of 1.0 g gravitational field strength = 9.8 N/kg Calculate the maximum force the magnet can exert.

A student investigated how the height of a ramp affects the acceleration of a trolley down the ramp. Figure 11 shows some of the equipment used.

Plan an investigation to determine how the height of the ramp affects the acceleration of the trolley.

Table 2 shows the results.

The first two results have been plotted on Figure 12.

Complete Figure 12. You should:

• label the axes

• plot the remaining results from Table 2

• draw a line of best fit.

Write down the equation that links acceleration (a), mass (m) and resultant force (F).

When the resultant force on the trolley was 0.63 N the acceleration of the trolley

Calculate the mass of the trolley.