Question

a car coasts up a hill. as it climbs, it slows down. which type of energy is the car losing as it goes up?

a. nuclear energy
b. elastic energy
c. gravitational potential energy
d. kinetic energy

Explanation:

Kinetic energy is related to the motion of an object. The formula for kinetic energy is \(K = \frac{1}{2}mv^{2}\), where \(m\) is the mass of the object and \(v\) is its velocity. As the car slows down (its velocity \(v\) decreases), its kinetic energy decreases. Nuclear energy is related to the nucleus of an atom and is not relevant here. Elastic energy is stored in objects that can be stretched or compressed (like springs) and is not applicable. Gravitational potential energy \(U = mgh\) (where \(h\) is the height) increases as the car goes up the hill (since \(h\) increases).

Answer:

D. Kinetic energy