Types of Energy
Potential or Kinetic
Energy Transformations
Energy Resources
The Law of Conservation of Energy
100

What are the 2 main types of energy?

Potential and Kinetic

100

Standing at the top of a slide

Potential

100

What are the energy transformations in a lamp?

Electrical

Radiant

Thermal

100

Almost all of the energy we use can be traced back to the __________.

Sun

100

The Law of Conservation of Energy states that energy cannot be __________ nor __________; it can only change from one form to another.

Created, Destroyed

200

Kinetic energy is energy of __________. Potential energy is __________ energy.

Motion and Stored

200

Roll down a grassy hill

Kinetic

200

What are the energy transformations in a flashlight?

Chemical

Electrical

Radiant

Thermal

200

An energy resource that is available in unlimited amounts and is replaced as fast as it is used.

Renewable Energy Resource

200

Energy is measured in __________. 

Joules

300

A book sitting on a shelf has this type of energy.

Gravitational Potential Energy

300

A speeding car

Kinetic

300

What are the energy transformations in a blender?

Electrical

Mechanical

Sound

300
The most commonly used nonrenewable energy resources are __________.  Three examples are __________.

Fossil Fuels; coal, oil, and natural gas

300

True or False - The total amount of energy in the universe changes every day.

False

400

This type of energy is stored in a rubber band.

Elastic Potential Energy

400

A roller coaster car at the top of a hill

Potential

400
This is the force that resists the sliding of two surfaces that are touching.  There is always some of this between any two surfaces that are rubbing against each other.

Friction

400

Which fossil fuel is burned to create electricity at electric power plants?

Coal

400

True or False - As an object falls, its potential energy is lost to the air around it. 

False

500

What is the total energy of an object or group of objects due to large scale motions and interactions.  It is the sum of all the potential and kinetic energy in a system.

Mechanical Energy

500

An archer has pulled back the string of his bow, ready to release the arrow

Potential 

500

Describe the energy transformations that take place when a ball is thrown into the air and falls back to the ground.

As the ball rises, the potential energy increases while the kinetic energy decreases.  As the ball falls back to the ground, the potential energy decreases and the kinetic energy increases. The total amount of energy does not change.

500

Which 2 fossil fuels are formed from microscopic ocean-organisms that died and sank to the ocean floor?

Petroleum and Natural Gas

500

If a lamp has 5.8 joules of energy when you turn it on.  How many joules are remaining after the lamp has been on for 3 hours?

5.8 joules

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