5 marksFoundation
The diagram shows a circuit.
.1Name component X.
[1 mark] .2The lamp is off. Explain why the lamp lights when the switch is closed.
[2 marks] .3When the switch is closed, the reading on X is 0.20 A.
Calculate the charge that flows through the lamp in 60 s.
[2 marks] 5 marksFoundation
A student drops a ball of mass 0.20 kg from a height of 1.5 m.
Gravitational field strength = 9.8 N/kg.
.1Which energy store of the ball decreases as it falls?
[1 mark] .2Calculate the energy transferred from this store as the ball falls 1.5 m.
[2 marks] .3Assume all of this energy is transferred to the ball's kinetic store.
Calculate the speed of the ball just before it hits the ground.
[2 marks] 3 marksFoundation
A sealed balloon contains helium gas.
.1Which statement describes the motion of the helium particles?
[1 mark] .2Explain how the helium particles exert a pressure on the inside of the balloon.
[2 marks] 4 marksFoundation
A kettle heats 0.80 kg of water from 20 °C to 100 °C.
The specific heat capacity of water is 4200 J/kg °C.
.1Calculate the energy transferred to the water.
[3 marks] .2What is the internal energy of the water?
[1 mark] 5 marksFoundation
The diagram shows a series circuit.
.1Calculate the total resistance of the circuit.
[1 mark] .2Calculate the current in the circuit.
[2 marks] .3Calculate the potential difference across the 10 Ω resistor.
[2 marks] 