Energy Resources, Forms, and Transformations

What is energy ?

• The ability to make things move
• The ability to make things move or change
• The ability to make things change
• The ability to do work

What is a fossil fuel ?

• An energy resource that formed over millions of years from the decayed remains of ancient plants
• Any material from living things that can be used as an energy source
• Heat energy from inside Earth that can be used to heat buildings and produce electricity

The energy of moving objects...

• Moving energy
• Electrical energy
• Chemical energy
• Mechanical energy

Energy stored in the bonds that hold atoms together in molecules is called Chemical energy

• True
• False

Which energy transformation occurs when you run ?

• Mechanical energy is changed to chemical energy
• Your body makes new energy
• Energy is used up and lost
• Chemical energy is changed to Mechanical energy

Which is a nonrenewable source ?

• Coal
• Wood
• Wind
• Biomass

Which is an example of thermal energy ?

• Iced tea
• Hot cocoa

Travels as waves, through matter or empty space...

• Electromagnetic energy
• Sound waves

Nonrenewable energy is ...

• Replaced as used; can't be used up
• Used faster than replaced

Which device can change light energy into electricity ?

• Geothermal cell
• Hydropower cell
• Electromagnet cell
• Photovoltaic cell