Types of Energy

A toy robot can walk and talk and runs on batteries.  What type of energy is stored in the batteries?

• a.  chemical
• a.  kinetic
• a.  solar
• a.  thermal

 The figure below shows a toaster. Which energy conversion takes place when a toaster is switch on?

• a.  chemical to sound
• a.  electrical to sound
• a.  chemical to thermal
• a.  electrical to thermal

 Miguel is making a picture frame. He sticks a nail into the piece of wood and hits the nail with a hammer.  Which form of energy is not released when the hammer hits the nail?

• Electrical
• Thermal
• Kinetic
•  Sound

Which of these demonstrates kinetic energy?

• Standing still
•  Balancing on one foot
• Knocking over pins
• Holding a bowling ball

 An object that has kinetic energy must be ________

•  lifted above Earth’s surface
•  in motion
• at rest
• none of the above

Energy is

• When the surfaces of two objects rub against each other
• The ability to do work

When the space shuttle launched, Donna felt the warmth produced by the firing engines. which form of energy did Donna experience during the launch?

• kinetic
• light
• sound
• thermal

The law of __________ of energy states that energy cannot be created or destroyed.

• transformation
• absorption
• conservation
• stability

Gordon throws a baseball into the air. It rises, stops when it reaches its greatest height, and then falls back down to the ground. At what point does kinetic energy convert to potential energy?

• when the baseball is rising
• when the baseball is falling
• just after the baseball hits the ground
• while the baseball is stopped in the air

A group of sheep are grazing in a field. As they eat, the sheep break down the molecules in the grass, which release energy. which form of energy is stored in the grass?

• chemical
• elastic energy
• heat/thermal energy
• kinetic