AQA GCSE Trilogy Physics Paper 1 Foundation November 2021 question paper 8464/P/1F

A student investigated the density of different types of rock.

Figure 1 shows a piece of limestone.

The student was not able to calculate the volume of the piece of limestone using measurements taken with a ruler.

What is the reason?

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Figure 2 shows some of the equipment given to the student.

Describe a method the student could use to determine the volume of the piece of limestone.

The mass of the piece of limestone was 155 g.

The volume of the piece of limestone was 62 cm³.

Calculate the density of the piece of limestone.

Use the equation:

Density can be measured in g/cm³.

What is another unit for density?

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Figure 3 gives the density of some other types of rock.

The student has a sample of an unknown type of rock.

The density of this rock is 2.4 g/cm³.

Draw a bar on Figure 3 to show the density of the unknown type of rock.

Complete the sentence.

Choose the answer from the box.

The data in Figure 3 suggests that the unknown type of

The student cannot be certain that the unknown type of rock is one of the types of rock in Figure 3.

Give a reason why.

Pumice is a type of rock that has holes in it. The holes contain air.

Which diagram shows the arrangement of particles in air?

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In a sport called far-leaping, an athlete uses a long pole to cross a river.

Figure 4 shows an athlete far-leaping.

Figure 5 shows the athlete in different stages of far-leaping.

Complete the sentence.

Choose answers from the box.

Between positions A and B the athlete speeds up. There is

a decrease in the athlete’s
store of energy.

Between positions B and C the athlete jumps to the pole and climbs up it.

Which statement describes a change in the athlete’s energy between positions B and C ?

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The pole falls over from position C. The athlete lets go of the pole and lands at position D.

The change in height of the athlete between positions C and D is 3.0 m.

mass of athlete = 50 kg

gravitational field strength = 9.8 N/kg

Calculate the change in gravitational potential energy of the athlete between positions C and D.

Use the equation:

change in gravitational = mass × gravitational field strength × change in height potential energy

The kinetic energy of the athlete at position D is 1600 J.

mass of athlete = 50 kg

Calculate the speed of the athlete at position D.

Use the equation:

Choose the unit from the box.

Figure 5 is repeated below.

At positions A and E, the athlete is standing still.

Why does the athlete have less energy in position E than in position A ?

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Athletes have a large power output when they are far-leaping.

What is meant by the power of an athlete?

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A filament lamp breaks if the electric current in the filament becomes too big.

What is the correct symbol for a filament lamp?

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What is meant by an electric current?

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A manufacturer investigated the maximum current value of some filament lamps.

Figure 6 shows the symbols for an ammeter, a battery and a variable resistor.

The manufacturer connected an ammeter, battery, filament lamp and variable resistor in series.

Draw a circuit diagram to show the manufacturer’s circuit.

Include the symbol for a filament lamp from Question 03.1

How could the manufacturer increase the current in the filament lamp?

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When the potential difference across a filament lamp was 0.75 V, the current in the filament lamp was 0.16 A.

Calculate the power of the filament lamp.

Use the equation:

power = potential difference × current

Write down the equation which links charge flow (Q), current (I) and time (t).

The manufacturer increased the current in the filament lamp to 200 mA.

Calculate the charge flow through the filament lamp in 15 s.

The manufacturer increased the current in the filament lamp from 200 mA.

The filament in the lamp broke when the current reached 320 mA.

How many times greater than 200 mA was the current at which the filament broke?

The manufacturer tested lots of filament lamps.

The current at which the filament lamps broke was 320 ± 60 mA.

What is the range of currents at which the filament lamps broke?

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Solar intensity is a measure of the radiation received from the Sun at the surface of the Earth.

Figure 7 shows how the mean solar intensity changes with the distance from the equator.

The city of Athens is 4200 km from the equator.

What is the mean solar intensity in Athens?

Solar water heaters use radiation from the Sun to heat water.

The heated water is stored in a water tank.

Figure 8 shows a solar water heater on the roof of a building.

Cities closer to the equator have many more buildings with solar water heaters than cities further away from the equator.

Suggest why.

The use of solar water heaters may reduce the need to burn fossil fuels.

Complete the sentence.

Choose the answer from the box.

Burning fossil fuels contributes to global warming because there is an increase in

The efficiency of the solar water heater is 0.61

Calculate the useful power output when the total power input to the solar water heater is 1100 W.

Use the equation:

useful power output = efficiency × total power input

Different solar water heaters have different sized heating panels.

Suggest how the size of the heating panels affects the input power to a solar water heater.

Water has a high specific heat capacity.

What is meant by the specific heat capacity of water?

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The water tank contained 80 kg of water.

The change in thermal energy of the water was 8 400 000 J.

specific heat capacity of water = 4200 J/kg °C

Calculate the temperature change of the water.

Use the Physics Equations Sheet.

The water tank is thermally insulated.

How does thermal insulation affect the rate of energy transfer from the water in the tank?

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Table 1 shows information about different materials.

Which material in Table 1 is the best thermal insulator?

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Figure 9 shows a mobile phone with its battery removed.

A student measured the potential difference across the battery and then put the battery into the phone.

What is the equation linking current (I), potential difference (V) and resistance (R)?

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The current in the electronic circuit in the mobile phone was 0.12 A.

The potential difference across the battery was 3.9 V.

Calculate the resistance of the electronic circuit in the mobile phone.

Write down the equation which links energy (E), power (P) and time (t).

The battery was fully charged when it was put into the mobile phone.

The battery discharged when the mobile phone was switched on.

The average power output of the battery as it discharged was 0.46 watts.

The time taken to fully discharge the battery was 2500 minutes.

Calculate the energy transferred by the battery.

The mobile phone includes a sensor to monitor the temperature of the battery.

Figure 10 shows the circuit symbol for a component used in the sensor.

What component does the circuit symbol shown in Figure 10 represent?

The temperature of the component in Figure 10 increases.

The potential difference across the component remains constant.

Explain what happens to the current in the component.

A radioactive source emits alpha, beta and gamma radiation.

An alpha particle is the same as a helium nucleus.

How many times bigger is the radius of a helium atom than the radius of an alpha particle?

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Alpha particles can ionise atoms in the air.

What happens to an atom when it is ionised by an alpha particle?

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A spark detector is a device that can be used to detect alpha radiation.

A spark detector works by alpha particles ionising atoms in the air near a wire mesh.

A large potential difference creates a spark when the air near the wire mesh is ionised.

Suggest why a spark detector cannot detect beta radiation.

A teacher wants to demonstrate that the radioactive source emits alpha, beta and gamma radiation.

Figure 11 shows the equipment the teacher has.

Describe a method the teacher could use.