Some students investigate the speed of cars - Edexcel - GCSE Physics - Question 1 - 2015 - Paper 1
Question 1
Some students investigate the speed of cars.
They measure the time it takes each car to travel a distance of 80 m.
(a) State two measuring instruments the students ... show full transcript
Worked Solution & Example Answer:Some students investigate the speed of cars - Edexcel - GCSE Physics - Question 1 - 2015 - Paper 1
Step 1
State two measuring instruments the students should use.
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Answer
The students can use a stopwatch and a meter ruler to measure the time taken by each car and the distance travelled respectively.
Step 2
State the colour of the slowest car.
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Answer
The colour of the slowest car is red.
Step 3
Calculate the speed of the black car.
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Answer
The speed of the black car can be calculated using the formula:
speed=timedistance
Substituting the values, we have:
speed=4.3 s80 m≈18.60 m/s
Thus, the speed of the black car is approximately 18.6 m/s.
