Q1
2) Figure 3 shows a battery operated remote control car.
2.1) The car’s battery contains a store of energy.
As the car moves, energy from one store is transferred to another store.
Describe how different stores of energy change as the car moves. [2 marks]
The car has a top speed of 12 m/s and a mass of 800 g.
2.2) Write down the equation that links kinetic energy, mass and speed. [1 mark]
Equation _____________________________
2.3) Calculate the maximum kinetic energy of the car. [2 marks]
As the car moves, energy from one store is transferred to another store.
Describe how different stores of energy change as the car moves. [2 marks]
The car has a top speed of 12 m/s and a mass of 800 g.
2.2) Write down the equation that links kinetic energy, mass and speed. [1 mark]
Equation _____________________________
2.3) Calculate the maximum kinetic energy of the car. [2 marks]
Maximum kinetic energy = ___________________ J
2.4) Explain why having a more efficient motor increases the top speed of the car. [2 marks]
Figure 4 shows an electric car being charged.
Figure 4 shows an electric car being charged.
2.5) A driver wishes to buy a new car.
Table 1 gives some data about an electric car and one with a petrol engine.
Table 1 gives some data about an electric car and one with a petrol engine.
Which car would be the most economic over its 12 year lifetime?
Use data from Table 1 to support your answer.
You should include the difference in cost in your answer. [4 marks]
(Total for Question 2 = 11 marks)
Use data from Table 1 to support your answer.
You should include the difference in cost in your answer. [4 marks]
(Total for Question 2 = 11 marks)