Predicting Changes in Kinetic Energy Quick Check

Question

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Question
You are told 3 things...1. That there are two objects with equal masses. 2. Both objects are in motion. 3. One object has a greater kinetic energy than the other. How is this possible? (1 point)
Responses

One object has a greater speed than the other object.
One object has a greater speed than the other object.

One object has a greater volume than the other object.
One object has a greater volume than the other object.

One object is blue and one object is red.
One object is blue and one object is red.

One object has a greater density then the other object.

Answer 1

The correct response is:

One object has a greater speed than the other object.

Kinetic energy (KE) is given by the formula \( KE = \frac{1}{2}mv^2 \), where \( m \) is mass and \( v \) is velocity. Since both objects have equal masses, the object with the greater kinetic energy must have a greater speed.