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An electric car travels along a straight, flat road.

How is the velocity of the electric car different from its speed?

[1]

The car's driving wheels push backwards on the road surface to move the car forward. Explain how Newton's third law of motion applies to this interaction.

[2]

The distance-time graph below shows the movement of the electric car during a test run:

A distance-time graph with distance in metres on the vertical axis ranging from 0 to 2000 m, with major labels at 0, 500, 1000, 1500, 2000. The horizontal axis is time in seconds ranging from 0 to 80 s, with major labels at 0, 20, 40, 60, 80. A single straight line starts at the origin (0,0) and goes directly to the point (60, 1500).

Determine the speed of the electric car.

[3]

Write down the equation that links acceleration ( $a$ ), change in velocity ( $Δv\Delta v$ ), and time taken ( $t$ ).

[1]

At a different stage of the run, the car was travelling at a velocity of $m/s32\text{ m/s}$ .

The car then decelerated at a constant rate of $m/s21.6\text{ m/s}^2$ .

Calculate the time taken for the car to decelerate from $m/s32\text{ m/s}$ to $m/s8\text{ m/s}$ .

[4]

Write down the equation that links distance ( $s$ ), force ( $F$ ), and work done ( $W$ ).

[1]

When the car's brakes were fully applied to bring it to a stop, it travelled a distance of $m45\text{ m}$ .

The work done by the braking force to stop the car was $J270,000\text{ J}$ .

Calculate the mean braking force used to stop the car.

[3]

Forces and motion Questions

Practise AQA GCSE Physics Forces and motion with exam-style questions for Foundation and Higher tier. 83 questions covering Describing motion along a line, Forces, accelerations and Newton's Laws of motion, and Forces and braking, matched to the AQA GCSE Physics (8463) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.