Edexcel GCSE Combined Science Paper 6: Physics 2 Foundation June 2023 question paper 1SC0/2PF

Figure 1 shows the parts in an electrical circuit.

Draw the circuit diagram of this electrical circuit in the space provided.

The battery symbol and some of the connecting wires have been drawn for you.

Figure 2 shows the current flowing into and out of point P in part of a circuit.

Which of these is the value of current I ?

There is a current of 0.46 A in a lamp.

Calculate the total charge that flows through the lamp in 30 seconds.

Use the equation

charge = currenttime in seconds

charge =_........ C

The voltage across the lamp is 6.0 V.

The current in the lamp is 0.46 A.

Calculate the energy transferred to the lamp in one minute.

Use the equation

energy transferred = currentvoltagetime in seconds

energy transferred =_........ J

This question is about magnets and magnetism.

Figure 3 shows a magnet that has picked up three paper clips.

The poles of the lowest paper clip are labelled.

Label the poles of the other two paper clips in Figure 3.

Complete the sentence, by choosing a word from the box, to describe the type of magnetism that these paper clips have.

These paper clips have_........ magnetism.

Suggest a material that these paper clips in Figure 3 could be made from.

When the paper clips were pulled off the magnet they fell separately to the table.

Describe how you could test whether any of the paper clips had kept any magnetism.

Figure 4 shows the magnetic field around a wire carrying a current.

State how you can tell from Figure 4 that the strength of the field is greater at P than at Q.

The magnetic field strength is measured at P for different values of current in the wire.

The results of this investigation are shown in Figure 5.

Describe the relationship between magnetic field strength and current.

Figure 6 shows part of the UK National Grid system for the supply of electricity to homes.

Electricity supplied to homes has a frequency of

Explain why the National Grid uses high voltages with small currents to transfer electricity from power stations.

Calculate the power in the primary coil.

Use the equation

power in the primary coil =_........ W

For the transformer in Figure 7, evaluate, in its simplest form, the ratio

secondary voltage: primary voltage

This question is about energy transfers.

Figure 8 shows the apparatus used for investigating the transfer between gravitational potential energy and kinetic energy.

A metal ball is attached to a thread.

The ball is released from a starting position and swings on the thread.

The ball cuts a light beam at the bottom of its swing.

When the ball cuts the light beam, the speed of the ball is recorded by the data logger.

The ball was released 3 times from the same height and the speed measured each time.

The measurements of speed are given in Figure 9.

Calculate the mean speed.

mean speed =_........ m/s

Suggest one reason why the measurements of speed were repeated.

The mass of the ball is 0.052 kg.

The ball falls through a vertical height (Δ h) of 5.0 cm as it swings.

The gravitational field strength, g, is 10 N/kg.

Calculate the change in the gravitational potential energy of the ball.

Use the equation

change in gravitational potential energy =_........ J

Figure 10 shows an end‑on view of the ball’s swing from its starting position.

To measure the change in vertical height, Δ h, through which the ball moves, a ruler could be used.

Draw a ruler on Figure 10, placed in a position to measure the change in vertical height Δ h.

Figure 11 shows a set square.

Describe how the measurement of the change in vertical height, Δ h, could be improved using the set square.

You may add to Figure 10 or Figure 11 to help your description.

The voltage (potential difference) across a length of wire is 1.5 V.

A charge of 0.042 C flows through the wire.

Calculate the energy transferred.

Use the equation

E =_........ J

Figure 12 shows some of the apparatus that students use to determine the resistance of a piece of iron wire.

Add connecting wires, a voltmeter and an ammeter to complete the circuit in Figure 12 so that the students can determine the resistance of the piece of iron wire.

The students extend the investigation to determine how the resistance of the iron wire changes with its length.

Give the name of one additional piece of apparatus the students would need.

Figure 13 shows a graph of the results.

Draw a straight line of best fit on Figure 13.

Use Figure 13 to estimate the resistance of a 100 cm length of the iron wire.

resistance =_........ Ω

The variable resistor shown in Figure 12 is used to prevent the iron wire from becoming too hot.

Explain how the variable resistor is used to prevent the iron wire from becoming too hot.

The potential difference (voltage) across another piece of wire is 1.56 V.

The current in the wire is 0.45 A.

Calculate the resistance of this piece of wire.

Use the equation

resistance =_........ Ω

Which of these means changing state from solid directly to gas?

An object has a mass of 7.22×10^–2kg and a volume of 2.69×10^–5m³.

Calculate the density, ρ, of the object.

Use the equation

State the unit.

density =_........ unit_........

Aluminium has a melting point of 660C.

The absolute zero of temperature is –273C.

Calculate the melting point of aluminium in kelvin.

melting point of aluminium =_........ K

Describe the motion of particles in liquid aluminium (above 660C).

*(d) The table shows some properties of two materials used as thermal insulation.

The higher the R‑value, the better the thermal insulating properties of the material.

Assess which of these materials may be the more suitable to use as thermal insulation in a building.

Your answer should compare the properties of fibreglass and polystyrene given in the table.

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