A motorbike accelerates from rest to 20 m/s in 8.0 s.
.1
Calculate the acceleration of the motorbike.
[2 marks].2
Another bike accelerates at 4.0 m/s² for 3.0 s. Calculate its change in velocity.
[2 marks]OCR Gateway GCSE Physics June 2018 Paper 1
5 questions on this paper's topics
25:001 of 5
The diagram shows a circuit.
.1
Name component X.
[1 mark].2
The lamp is off. Explain why the lamp lights when the switch is closed.
[2 marks].3
When 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]A kettle is connected to the 230 V mains supply. The current in the kettle is 8.0 A.
.1
Calculate the power of the kettle.
[2 marks].2
The kettle is switched on for 3.0 minutes.
Calculate the energy transferred by the kettle.
[2 marks].3
Which energy store is increased usefully by the kettle?
[1 mark]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.
.1
Calculate the energy transferred to the water.
[3 marks].2
What is the internal energy of the water?
[1 mark]An atom of sodium has an atomic number of 11 and a mass number of 23.
.1
Give the number of protons in the sodium atom.
[1 mark].2
Calculate the number of neutrons in the sodium atom.
[1 mark].3
What is the overall charge of the nucleus of a sodium atom?
[1 mark]