medium · Act science
A class dropped a ball from five heights and recorded how high it bounced. Drop height (cm): 50, 100, 150, 200, 250. Bounce height (cm): 30, 61, 89, 122, 150.
Which variable did the students deliberately change (the independent variable), and what bounce is expected from a 175 cm drop?
- Independent variable is drop height; expect a bounce of about 105 cm
- Independent variable is bounce height; expect a drop of about 105 cm
- Independent variable is drop height; expect a bounce of about 150 cm
- Independent variable is bounce height; expect a bounce of about 89 cm
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