Question detail
A car accelerates from rest to a speed of 20 m/s in 5 seconds. Calculate the acceleration of the car Explain your answer using Required practical: acceleration and acceleration.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Forces and motion
Question
A car accelerates from rest to a speed of 20 m/s in 5 seconds. Calculate the acceleration of the car Explain your answer using Required practical: acceleration and acceleration.
Answer
4 m/s²
Explanation
A strong answer should address measure time and distance to calculate acceleration directly. Use the context of Required practical: acceleration within Forces and motion, then state the relevant forces or motion reasoning with units where needed. The answer is correct when it names the key physics quantity, keeps distance and displacement distinct, and links the conclusion back to the approved learning objective.
Common mistake
Common Mistake in Measuring Acceleration
Students often forget to measure the total distance travelled by the trolley when calculating acceleration, leading to incorrect results.
Ensure to measure the entire distance the trolley travels from start to stop, and use this distance in the acceleration calculation.
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