Question 1
FAn athlete runs one complete lap of a running track. She starts and finishes at point S.
The length of one lap is 400 m. She takes 80 s to run the lap.
The Figure shows the running track.
Figure
a.[1]
State the distance the athlete runs.
b.[2]
State the displacement of the athlete at the end of the lap. Give a reason for your answer.
c.[2]
Use the equation: distance travelled=speed×time\text{distance travelled} = \text{speed} \times \text{time}distance travelled=speed×time
Calculate the average speed of the athlete.
d.[2]
The athlete runs at a constant speed for the whole lap.
Explain why her velocity is not constant.
2.1 Motion Questions
43 exam-style questions on OCR GCSE Physics 2.1 Motion, covering 2.1.1 Measuring distance and time, 2.1.2 Measuring speed, 2.1.3 Ratios, units and rates in motion, 2.1.4 Scalars and vectors in motion, 2.1.5 Distance-time and velocity-time graphs, 2.1.6 Area under a velocity-time graph, 2.1.7 Average speed for non-uniform motion, and 2.1.8 Uniform motion and uniform acceleration. Each one has a worked solution and a mark scheme showing where the marks go.