Four students are instructed to find the time it takes for a toy car to travel a distance of 0.8 m down a slope, starting from rest.
Each student uses a different procedure.
Which student follows the correct procedure?
The student measures the time taken for the car to travel 0.8 m0.8\text{ m}0.8 m four times. He then adds the times taken together and divides by four.
The student measures the time taken for the car to travel 0.8 m0.8\text{ m}0.8 m four times. He then multiplies the times taken together and divides by four.
The student measures the time taken for the car to travel 1.6 m1.6\text{ m}1.6 m from rest. He then divides the time taken by two.
The student measures the time taken for the car to travel 1.6 m1.6\text{ m}1.6 m from rest four times. He then adds the times taken together and divides by eight.
164 exam-style questions on CIE IGCSE Physics Physical quantities and measurement techniques, covering Physical quantities and measurement techniques. Each one has a worked solution and a mark scheme showing where the marks go.