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Question
Use the table of data from an investigation to answer the question.
Mass of ball (grams) Time to hit ground (seconds)
10 1.02
15 1.01
26 1.62
A student is investigating gravity and falling objects. She drops three balls and times how long it takes each ball to hit the ground. What is the most likely source of error?
(1 point)
Responses
She did not measure the circumference of the balls.
She did not measure the circumference of the balls.
She dropped the balls from different heights.
She dropped the balls from different heights.
She did not measure the mass after the balls hit the ground.
She did not measure the mass after the balls hit the ground.
She used balls that are different sizes.
She used balls that are different sizes.
1 answer
The most likely source of error in this investigation is:
She dropped the balls from different heights.
This is because the height from which the balls are dropped can significantly affect the time taken for them to hit the ground. For a fair investigation of gravity, all balls should be dropped from the same height.
