Name:    9th Grade Physics- Energy Practice Test 1

Multiple Choice
Identify the choice that best completes the statement or answers the question.

1.

Heat transferred from one atom to the next through direct contact is called
 a. convection c. radiation b. conduction

2.

Identify the point at which the greatest amount of potential energy exists.
 a. A c. C b. B d. D

3.

A pendulum will stop swinging when
 a. the inertia is greater than the force of the pendulum c. the friction of air particles is greater than the force of the pendulum moving b. the pressure is greater than the force of the pendulum d. the gravitational pull is greater than the force of the moving pendulum

4.

According to the Law of Conservation of Energy the steel bearings in Newton’s Cradle will experience all of the following EXCEPT
 a. Energy is being transferred into the surrounding air molecules as the air friction slows the bearings down c. The impact of one bearing will cause one bearing to move in an opposite direction b. Energy is being transformed in the form of heat as the bearings hit each other d. Energy is being created when the bearings are set in motion and destroyed when the bearings stop

5.

A three year old child rolls a bowling ball down a bowling lane, but the ball comes to a stop before it reaches the bowling pins.  The energy was
 a. destroyed by the gravitational pull of the Earth c. transferred into heat due to the friction of the surface and the ball b. destroyed once the bowling ball stopped d. created when the child released the bowling ball

6.

Which of the following examples defies the Law of Conservation of Energy?
 a. A ball rolling on a flat surface and then coming to a stop c. A ball increases speed as it rolls down hill, but eventually comes to a stop b. A ball rolls down and up a “U” shaped valley never stopping because of the force of gravity when it goes down hill d. A ball bounces, each bounces is rebounds with less height than the previous

7.

Which of the following examples represents the least amount of potential energy?
 a. A roller coaster at the top of the tracks c. A basketball stuck on the rim b. An apple on a tree branch d. A flyball falling down to an outfielder’s glove

8.

The Law of Conservation of Energy states
 a. energy cannot be created or destroyed c. energy cannot be created but can be destroyed b. energy can be created or destroyed d. energy can be created but not destroyed

9.

A man has parked his car after driving 60 miles.  He slides under the car to change the oil, as he reaches up to unscrew the oil plug his hand touches the engine and burns his hand.  This is an example of which type of heat transfer?
 a. insulation c. conduction b. radiation d. convection

10.

The bubbles you see in a boiling pot of water are an example of which type of heat transfer?
 a. conduction c. radiation b. convection