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Some students investigate the speed of cars - Edexcel - GCSE Physics - Question 1 - 2015 - Paper 1

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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 to measure time and a measuring tape to measure distance.

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

To calculate the speed of the black car, we use the formula for speed:

ext{Speed} = rac{ ext{Distance}}{ ext{Time}}

Substituting the values:

ext{Speed} = rac{80 ext{ m}}{4.3 ext{ s}} \ ext{Speed} ext{ } imes ext{ here} ext{ calculated as } 18.6 ext{ m/s}

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