Question
Question
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)
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 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.
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)
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 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.
Answers
GPT-5 mini
She should drop two balls with different masses from the same height.
Reason: keeping height (and thus impact velocity) constant isolates mass as the only variable. With the same velocity, KE = 1/2 m v^2 shows the heavier ball will have greater kinetic energy.
Reason: keeping height (and thus impact velocity) constant isolates mass as the only variable. With the same velocity, KE = 1/2 m v^2 shows the heavier ball will have greater kinetic energy.