Edexcel GCSE Combined Science Paper 6: Physics 2 Foundation June 2019 question paper 1SC0/2PF

Figure 1 gives the names of three atomic particles and some descriptions of the charge on the particles and their position in the atom.

Draw one straight line from each atomic particle to its correct description.

Figure 2 shows the junction of three wires, F, G and H, in a circuit. The current in wire F is 6.0 A. The current in wire G is 3.5 A.

Calculate the current in wire H.

current in wire H =_........ A

A wire in a circuit carries a current of 0.9 A. Calculate the quantity of charge that flows through the wire in 50 s.

State the unit of charge with your answer.

Use the equation

charge = current × time

quantity of charge =_........ unit_........

Which of these is a magnetic material?

A student has

− a power pack

− a long piece of wire

− a stiff card

− iron filings

Describe how the student could use this equipment to show the shape of the magnetic field produced by a current in the wire.

You may draw a diagram to help with your answer.

Figure 3 shows two magnetic poles facing each other.

The magnetic field between the poles is uniform.

On Figure 3, draw the magnetic field lines between the two poles and show the direction of this magnetic field.

Figure 3

Figure 4 shows a 10 N weight hanging from a spring.

Figure 4

One of the forces acting to stretch the spring is shown in Figure 4.

Complete Figure 4 by adding an arrow to show the other force acting to stretch the spring.

A weight of 4.0 N is used to extend a spring. The extension of the spring is 0.06 m.

Calculate the spring constant, k, of the spring.

Use the equation

F = k × x

spring constant =_........ N/m

State what measurements should be made to determine the extension of the spring produced by the 4.0 N weight.

Another spring has a spring constant of 250 N/m.

Calculate the work done in stretching the spring by 0.30 m.

State the unit.

Use the equation

work done in stretching the spring =_........ unit_........

Solid, liquid and gas are states of matter.

Which process describes the change from a solid to a liquid?

A student determines the density of a liquid.

The student puts an empty measuring cylinder on a balance (Figure 5a). The student then adds liquid to the measuring cylinder (Figure 5b).

Calculate the mass of liquid added and the volume of liquid added.

Use the information in Figures 5a and 5b.

mass of liquid added =_........ g

volume of liquid added =_........ cm³

Which equation should the student use to calculate the density of the liquid?

State two improvements the student could make to this investigation.

Figure 6 shows an electric kettle.

The kettle contains 1.5 kg of water.

The kettle is switched on.

Calculate the energy needed to raise the temperature of the water by 50 °C.

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

Use the equation

Δ Q = m × c × Δ θ

energy needed =_........ J

The amount of energy, E, needed to bring the water to boiling point is 670 000 J.

The kettle has a power of 3500 W.

Calculate the time, t, it takes to bring the water to boiling point.

Use the equation

time to bring the water to boiling point =_........ s

Which of these is the equation for work done?

A ball has a mass of 0.046 kg.

Calculate the change in gravitational potential energy when the ball is lifted through a vertical height of 2.05 m.

Use the equation

Δ GPE = m × g × Δ h

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

The ball is released.

Calculate the kinetic energy of the ball when the speed of the ball is 3.5 m/s.

kinetic energy of the ball =_........ J

The ball bounces several times.

Figure 7 shows how the height of the ball above the floor changes with time.

Use Figure 7 to estimate the maximum height that the ball reaches after the first bounce.

height after first bounce =_........ m

Explain why the ball does not bounce back to its starting height of 2.05 m.

A student plots a graph showing the height at the start and the maximum height reached after each bounce.

Figure 8 shows the student’s graph.

Describe how the maximum height reached changes with the bounce number in Figure 8.

Which of these symbols is used to represent a thermistor in an electrical circuit?

A student investigates how the current in a lamp changes with the potential difference across the lamp.

The student uses the results to calculate the resistance of the lamp.

The results are shown in the table in Figure 9.

One value of resistance is missing from the table in Figure 9.

Calculate the value of resistance that is missing from the table.

missing resistance =_........ Ω

The student writes this conclusion:

‘The resistance of the lamp is directly proportional to the potential difference.’

Comment on the student’s conclusion. Use information from Figure 9 in your answer.

*(c) Figure 10 shows a battery connected to a filament lamp.

Explain, in terms of the movement of charged particles, how energy is transferred from the battery, through the lamp, to the surroundings.