1 (a) Figure 1 shows a speed/time graph for a car - Edexcel - GCSE Physics - Question 1 - 2019 - Paper 1
Question 1
1 (a) Figure 1 shows a speed/time graph for a car.
The graph in Figure 1 is divided into four parts, P, Q, R and S.
Draw a line from the letter for each part to th... show full transcript
Worked Solution & Example Answer:1 (a) Figure 1 shows a speed/time graph for a car - Edexcel - GCSE Physics - Question 1 - 2019 - Paper 1
Step 1
P - the car is standing still
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Answer
Part P of the graph indicates that the car is not moving, confirming that its speed is constant at 0 m/s.
Step 2
Q - the car is accelerating
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Answer
In section Q, the speed increases from 0 m/s to 30 m/s; thus, the car is accelerating.
Step 3
R - the car is decelerating
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Answer
During part R, the speed decreases from 30 m/s to 10 m/s, indicating that the car is decelerating.
Step 4
S - the car is travelling at constant speed
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Answer
In section S, the speed remains at 10 m/s, which shows that the car is traveling at a constant speed.
