Energy Review

The SI unit for energy is the...

• Meter

• Joule

• Newton

• Milliliter

The two main types of energy are...

• Thermal and chemical

• Nuclear and mechanical

• Kinetic and mechanical

• Kinetic and potential

Juan has a mass of 10 kg and is running at a velocity of 4 m/s. What is his kinetic energy?

• 40 J

• 80 J

• 120 J

• 20 J

Which two factors influence the amount of potential energy an object has?

• Kinetic energy and acceleration

• Weight and velocity

• Weight and height

• Kinetic energy and height

An example of kinetic energy is...

• A pendulum before it is released from its highest point.

• A bowling ball rolling down a lane.

• A diver standing at the top of a diving board.

• A battery.

A car starts at the top of a big hill. The e-brake is cut and the car starts rolling down the hill. What can you say about the car's energy?

• It is gaining kinetic energy and losing potential energy.

• It is gaining potential energy and losing kinetic energy.

• It is gaining mechanical energy and losing chemical energy.

• It is gaining chemical energy and losing mechanical energy.

Which statement best describes thermal energy?

• It is the average amount of kinetic energy of particles of matter.

• It is the total amount of kinetic energy of particles of matter.

• It is the average amount of potential energy of particles of matter.

• It is the total amount of potential energy of particles of matter.

Which example below demonstrates that temperature is an AVERAGE of kinetic energy of particles of matter?

• You notice water beginning to boil before it reaches 100 degrees C.

• You notice that it is 20 degrees C outside on a windy day.

• You observe a thermometer increasing in temperature when left in the sun.

• You observe a thermometer decreasing in temperature when left in the freezer.

Which method of heat transfer involves hot substances rising and cool substances falling?

• Convection

• Conduction

• Radiation

• Thermal Energy

Which of the following likely has the MOST thermal energy?

• A boiling pot of soup.

• A lit match.

• A campfire.

• A 200 ton iceberg.