A student wants to determine the effect of mass on kinetic energy. She will drop two balls of the same size into a pool of water. Which investigation method should the student use?(1 point)

Question

Responses

She should drop two balls with different masses from the same height.
She should drop two balls with different masses from the same height.

She should drop two balls of the same mass from the same height.
She should drop two balls of the same mass from the same height.

She should drop two balls with different masses from different heights.
She should drop two balls with different masses from different heights.

She should drop two balls of the same mass from different heights.
She should drop two balls of the same mass from different heights.

Answer 1

To determine the effect of mass on kinetic energy, the student should use the method that allows her to vary mass while keeping other variables constant. The best investigation method is:

She should drop two balls with different masses from the same height.

This approach ensures that any differences in kinetic energy can be attributed to the difference in mass, as the height (and therefore potential energy) from which both balls are dropped is consistent.