OCR GCSE Combined Science A (Gateway) Physics Paper 6 Foundation June 2023 question paper J250/06

In an experiment, three students work out values for the speed of sound.

What is the range of values for the speed of sound?

A 313 m / s – 320 m / s

B 313 m / s – 330 m / s

C 320 m / s – 330 m / s

D 321 m / s – 330 m / s

Which part of the plug is connected to the metal case of an appliance?

A student calculates the efficiency of an energy transfer.

The input energy is 1600 J. The useful output energy is 1200 J.

Which answer shows the correct calculation?

Use the Equation Sheet.

Four drivers travel along the same road at 30 mph.

Each driver sees a red traffic light.

The graph shows the distance each driver travels after seeing the red light, but before pressing the brakes.

Which driver has the quickest reaction time?

A 200 g bar of chocolate is melted in a saucepan.

The specific latent heat of melting chocolate is 31.2 J / g.

How much energy is needed to melt the bar of chocolate?

Use the equation: thermal energy for a change in state = mass × specific latent heat

A 0.156 J

B 6.24 J

C 156 J

D 6240 J

A transformer has an output potential difference of 24 V.

The output current is 5 A.

What is the power output of the transformer?

Use the Equation Sheet.

A 0.21 W

B 4.8 W

C 120 W

D 240 W

Which wave has the highest frequency?

A Height (cm) B Height (cm)

C Height (cm) D Height (cm)

When an alpha particle hits a beryllium nucleus, a particle ‘X’ is emitted.

What is the missing number, labelled n in the equation?

A –1

B 0

C 1

D 2

Which sentence describes the law of conservation of energy ?

A Energy can be created in a power station.

B Energy can be transferred into power.

C Energy can only be transferred between stores.

D Energy can only be destroyed in the surroundings when it is wasted.

Which sentence is a disadvantage of using wind turbines? Tick (✓) one box.

Which sentence is an advantage of using solar panels? Tick (✓) one box.

Which energy resource produces the most energy per kilogram of fuel?

coal gas oil nuclear

Which energy resource can be used to cope with the extra demand for electricity starting at X ?

tidal gas wind turbines solar

Use the graph to estimate the maximum demand for electricity.

At 12:00, the demand for electricity is 34 GW.

Calculate the percentage decrease in demand for electricity from 12:00 to 13:00.

Give your answer to 1 decimal place.

Suggest a reason for the decrease in demand for electricity at 12:00.

A car travels along a road at 20 m / s.

Fig. 12.1 shows how the velocity of the car changes when the driver sees a hazard in the road at time = 0 seconds.

Fig. 12.1

Describe the motion of the car in part B of Fig. 12.1.

Name the distance travelled by the car in part A of Fig. 12.1. Tick (✓) one box.

Calculate the distance travelled by the car in part A of Fig. 12.1.

Use the equation: distance travelled = speed × time

Draw lines to match each situation to its correct speed.

Fig. 12.2 shows how acceleration changes with the mass of a car.

Fig. 12.2

Use Fig. 12.2 to determine the acceleration of a car with a mass of 960 kg.

Acceleration =........ m / s²

Use Fig. 12.2 to estimate the acceleration of a car with a mass of 1400 kg. Show your working on the graph.

Acceleration =........ m / s²

13* Alpha, beta and gamma radiation have different penetrating powers.

A teacher investigates whether a radioactive source is emitting alpha, beta or gamma radiation.

They place different types of screens between the source and a Geiger-Mϋller tube.

The diagram shows the teacher’s experiment.

The table shows the data the teacher collects.

Use the table to explain which type of nuclear radiation is emitted by the source.

Describe some other differences between alpha, beta and gamma radiation.

The diagram shows a sound wave.

Write the letter B, C or D in the correct boxes to label the diagram.

One has been done for you.

Which type of wave is a sound wave? Tick (✓) one box.

A student downloads a physics app to their mobile phone. The app contains an ‘acoustic stopwatch’.

The app works like this:

• When the microphone detects a loud sound, the acoustic stopwatch starts.

• When the microphone detects the next loud sound, the acoustic stopwatch stops.

Describe how the student can use the app to measure the speed of sound. Include the names of other equipment that the student will need to use.

Another student suggests using this stopwatch.

Suggest why the ‘acoustic stopwatch’ on the mobile phone app is an improvement on using this stopwatch.

The wavelength of a sound wave is 0.55 m.

The speed of sound in air is 330 m / s.

Calculate the frequency of the sound wave.

Use the Equation Sheet.

A car has a mass of 1100 kg.

Calculate the kinetic energy of the car when it is travelling at 10 m / s. Use the equation: kinetic energy = × mass × (speed)²

When the car has a kinetic energy of 140 000 J, the driver presses the brakes.

Calculate the braking force if the car stops in a distance of 40 m.

Use the equation: work done = force × distance

A scientist is working with a radioactive material. The radioactive material emits beta radiation.

Fig. 16.1 shows the scientist walking very close to the radioactive material.

Fig. 16.1

Describe the effect of the radioactive material on the scientist as they walk past.

Tick (✓) one box.

In Fig. 16.2, the scientist knocks the radioactive material onto the floor. They pick up the radioactive material with their bare hands.

Fig. 16.2

Describe the effect of the radioactive material on the scientist as they pick it up.

Tick (✓) one box.

Fig. 16.3 shows the scientist standing behind a lead screen and a lead-glass window. They use a robotic arm to handle the radioactive material.

Fig. 16.3

Describe the effect of the radioactive material on the scientist when they are behind the lead screen.

Tick (✓) one box.

The frequency of electromagnetic waves can be written as 1 × 10^N Hz. 17 N is an integer (a whole number).

The graph shows the typical values of N for different electromagnetic waves.

Which electromagnetic wave has the highest frequency?

Which electromagnetic wave is the most dangerous?

Ultraviolet waves have a greater frequency than visible waves.

How many times greater?

10² 10³ 10¹³ 10¹⁴ 10¹⁶

What is the frequency of a typical radio wave on the graph?

Write your answer as an ordinary number without standard form.

Which sentence is true about electromagnetic waves? Tick (✓) one box.

A 0.8 kW microwave oven is used to cook food. The microwave oven transfers 0.56 kWh when it is used to cook food.

Calculate the time the microwave oven is used for.

Use the equation: energy transferred = power × time