Types of energy
Energy of motion
Kinetic energy
Energy that uses moving electric charges
Electrical enrgy
A change of one form of energy to another
conversion or transformation
Coal stores energy from the sun as what type of energy
chemical
Potential energy stored in chemical bonds
Chemical energy
Stored energy based on position or shape
Potential
Energy that can be seen in light and travels in waves.
Electromagnetic or radiant
Energy cannot be created or destroyed during conversion of energy.
Law of conservation of energy
The sun’s energy comes from what type of energy?
nuclear
(You will need textbook) Look at the picture of the golfer on page 128. At which point does the club have the greatest potential energy?
D
The ability to do work or cause change
Energy
A leaping frog is an example of this form of energy
mechanical
An arrow has potential elastic energy in a bow. It is transformed to what type of energy when it is flying through the air
Kinetic pr mechanical
A boulder at the top of a mountain has what type of energy?
GPE
As a car skids to a stop, mechanical energy is tranformed into
thermal
Unit for measuring energy
joule
Total energy of the particles in a substance
Thermal enrgy
When you rub your hands together on a cold day, you convert _______energy to _____.
MECHANICAL AND THERMAL
Stretching a slingshot gives it what kind of energy?
EPE
A boulder that weighs 200 N is poised at the edge of a 100 m cliff. What is the gravitational potential energy?
Include correct units.
20,000 J
The kinetic energy of an object depends on what two factors
mass (weight) and velocity (speed)
Type of energy that is formed from fission or fusion of atoms.
Nuclear
You turn on an electric fan to cool off. Describe the energy conversions.
ELECTRICAL---> MECHANICAL----> THERMAL
(You will need textbook) Look at the picture of the golfer on page 128. At which point does the club have the greatest kinetic energy?
C
Whenever energy is transformed, some energy is always transformed to this type of energy.
Thermal