WE3 - Kinetic and Potential Energy

TRUE or FALSE: If an object is moving, then it will not have any potential energy.

False

An object has a kinetic energy of 18 J. If the object's speed is tripled, then its new kinetic energy will be ____ J.

162 J

An object has a kinetic energy of 18 J. If the object's speed is decreased to one-third of its original value, then its new kinetic energy will be ____ J.

2

TRUE or FALSE: If an object is moving above the ground (at a non-zero height), then it will not have any kinetic energy.

False

An 8-kg object is moving with a speed of 5 m/s at a height of 4 m. The potential energy of the object is approximately ____ J.

320

A 6-kg object is moving with a speed of 4 m/s at a height of 8 m. The potential energy of the object is approximately ____ J.

48

TRUE or FALSE: If an object has kinetic energy, then it will not have any potential energy.

False

An object will definitely have potential energy if it is ____.

At rest above the ground (a non-zero height), moving above the ground (a non-zero height)

TRUE or FALSE: If an object is moving along the ground, then it will not have any kinetic energy.

False

Which of the following variations will increase the potential energy of an object?

Increase the object's height, increase the object's mass

Which of the following variations will increase the kinetic energy of an object?

Increase the object's mass, increase the object's speed

Kinetic energy is the energy that an object possesses due to its ____ and potential energy is the energy that an object possesses due to its ____.

Motion, position

An object will have kinetic energy if it is ____. Include all that apply.

Moving above the ground (a non-zero height), moving on the ground (height = 0 m), moving