An Eye on Energy

Energy is

• the ability to do work.
• how you feel after work.
• machines.

Which of these is NOT a type of stored energy?

• Mechanical energy
• Chemical energy
• Electrical energy
• Kinetic energy

What was created from decayed plants, heat, and pressure?

• water
• coal
• wind
• solar power

The most powerful source of energy in our sky is

• plants
• air
• clouds
• the sun

Which of these men was NOT important in discoveries with electricity?

• Johnson
• Franklin
• Gilbert
• Thales

Solar power can be collected on

• cloudy, windy days.
• cloudy days.
• sunny days.
• hot days.

Wind is a good source of ___________ energy.

• high
• nonrenewable
• clean
• coal

Which is a disadvantage of dams?

• They are expensive to build.
• They destroy animal habitats.
• Both of these.

Kinetic energy is

• working energy.
• stored energy.

Potential energy is

• working energy.
• stored energy.