Potential and Kinetic Energy

When would the skateboarder have the most potential?

• While rolling down the ramp

• while moving up the ramp

• at the bottom of the ramp

• at the top of the ramp

Which of the following best represents potential energy?

• air leaking rapidly from a car tire

• a marble sitting at the top of the ramp

• heat radiating from a large forest fire

• water flowing through a rubber hose

As a boulder rolls down the top of a hill to the bottom, how does its potential and kinetic energy change?

• they both increase

• potential increases, kinetic decreases

• potential decrease, kinetic increases

• they both decrease

A book is sitting on the table. Which of the following actions would add to its potential energy?

• sliding it across the table

• opening it to the middle

• dropping it on the floor

• lifting it to a high shelf

Which of the following examples best demonstrates kinetic energy?

• a brick lying on the ground

• a kite flying across the sky

• a television sitting on a table

• a curtain hanging in the window

which of the following shows a change from potential to kinetic energy?

• water flowing over a tall cliff

• a rubber band being stretched

• electricity making a light bulb light

• a stone lying on top of a mountain

potential and kinetic energy are similar in that --

• both depend on the height of an object off the ground

• each kind can be converted into another form

• both are demonstrated when an object is in motion

• either will produce an increase in the mass of an object

An airplane is demonstrating a conversion of kinetic to potential energy when -

• it ascends to a higher altitude

• more passengers board the plane

• it moves downward to make a landing

• the wheels spin as it moves on the ground

A snowball sits at the top of a hill. Which of the following changes will increase the kinetic energy of the snowball?

• additional snow falls on the snowball, increasing its mass

• the snowball is pushed an rolls down the hill, gaining speed

• the weather warms and the snowball melts, decreasing its mass

• the snowball is moved and now sits on a hill that is higher

A truck is parked at the bottom of the hill. It moves from the bottom of a hill and parks at the top. Compared to when it was parked at the bottom of the hill at its new position, the truck now has-

• more potential energy

• more kinetic energy

• less potential energy

• less kinetic energy