Forms of Energy

Look at the picture below.  Which part of the lamp system could be removed and the lamp still work?

• The lamp shade
• The electrical cord
• The light bulb
• The wall outlet

A boy went camping and packed his flashlight.  When it got dark, he tried to turn on the flashlight; however, it didn't work.  There are several reasons why it would not work.  All of the following could be reasons the flashlight failed to work EXCEPT —

• There were no batteries in the flashlight.
• The lens protecting the light bulb was scratched.
• The flashlight batteries were old.
• He didn't turn the switch from off to on.

Which object is the best conductor of electricity?

• A ceramic mug
• A plastic fork
• A penny
• A wooden craft stick

What form of energy is being used when a person pushes heavy boxes across the floor? 

• Electrical energy
• Mechanical energy
• Heat energy
• Sound energy

You are taking a cold soda on a field trip.  You must choose from four containers in which to carry the soda.  The four containers are made of different materials.  Which container will most likely insulate the soda the best?

• Metal
• Styrofoam
• Glass
• Plastic

Which statement is true about the picture?

• The metal pan causes the water to boil. 
• The metal pan is a poor conductor of heat.
• The wooden handle is a good heat insulator. 
• The wooden handle is a good heat conductor.

A girl turned the light off and went to bed.  She remembered she had accidentally left her glass of ice water on the counter.  When she got up the next morning, the ice had melted. What form of energy caused the ice to melt?

• Sound energy
• Light energy
• Thermal energy
• Mechanical energy

A student wants to see how the size of an iron ball is affected by gravity.  Which of the following would have to remain the same for the experiment to be successful?

• Mass and volume
• Material used and shape of object
• Mass and shape of object
• Volume and material used

A student created an electrical circuit, shown.

Which of the following statements is true about the circuit?
 

• The electrical circuit is working.
• The electrical circuit is open.
• The electrical circuit is complete.
• The electrical circuit is closed.

Which form of energy is produced when a guitar string vibrates?

• Sound energy
• Electrical energy
• Chemical energy
• Light energy