Energy Use and Conservation

Which of the following is a conversion from CHEMICAL to THERMAL energy?

• food is digested and used to regulate body temperature
• charcoal is burned in a BBQ pit
• coal is burned to boil water
• all of these examples

An object that has kinetic energy must be....

• at rest
• lifted above the Earth's surface
• in motion
• none of these answers

The ___________ in sugars and starches of food fuels all your body functions and movements, and provides the thermal energy that keeps your body temperature constant.

• nuclear energy
• chemical energy
• electrical energy
• light energy

In science, the ability to do work in called ....

• force
• power
• energy
• motion

A battery converts ________ energy into electrical energy for human use.

• chemical
• kinetic
• sound
• light

The law of conservation of energy states that energy can neither be created nor ......

• destroyed
• changed
• converted
• declined

What is the sequence of the energy transformations represented in this diagram of a moving car?

• mechanical to chemical to radiant
• radiant to chemical to electrical
• mechanical to electrical to radiant
• radiant to electrical to mechanical

What type of energy is provided in this picture?

• solar energy
• heat energy
• light energy
• all of these answers

What type of heat transfer occurs when heat energy travels from the SUN to the EARTH?

• radiation
• convection
• conduction
• boiling

Which of the pictures involves kinetic mechanical energy that is converted into electrical energy?

• A
• B
• C
• D