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  • Stage 1

    Answer 4 questions correctly in a row.

The passage below describes an experiment. Read the passage and think about the variables that are described.
children racing in wooden cars
wooden race cars
  • Diana was building a wooden race car. She could choose between two types of wheels for the car. Each of these wheels was ten inches in diameter, but one type was heavier than the other. Diana was curious if the weight of the wheels would affect how fast her race car could go down the race hill.
  • Diana put the lighter set of wheels on the car and rolled down the hill three times. She measured how long it took her to get to the bottom each time. Then, she put the heavier set of wheels on the car and rolled down the hill three more times. Once again, she measured how long it took to reach the bottom of the hill each time.
Which of the following was a dependent variable in this experiment?
ref_doc_title.

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