Question

question 3
at what point on a roller coaster is the kinetic energy increasing?
as it is going down the hill.
as it is climbing the hill.
at the bottom of the hill.
at the top of the hill.
question 4
what type of potential energy does a yo - yo have?
chemical potential energy
gravitational potential energy
elastic potential energy

Explanation:

For Question 3, kinetic energy increases as speed increases. A roller - coaster's speed increases as it goes down the hill due to gravity. For Question 4, a yo - yo has gravitational potential energy based on its height above the ground.

Answer:

Question 3: A. As it is going down the hill
Question 4: Gravitational potential energy