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

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 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.

Answer 1

To determine the effect of mass on kinetic energy while controlling for other variables, the best investigation method is:

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

This method allows the student to isolate the effect of mass on kinetic energy, as both balls will be subjected to the same gravitational potential energy and drop height, allowing for a direct comparison of their kinetic energies upon impact.