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Forms of Energy

4/11/16

Talk to your group and make a list of all the types of energy that you can think of.

Types of Energy

• Chemical

• Mechanical

• Electrical

• Magnetic

Mechanical

Energy of motion and position

• Kinetic – energy of motion

• Potential – energy of position

»potential to move

Lab Info

Gravitational Potential Energy Ug

mgy

m = mass (in kilograms)

g = acceleration due to gravity (9.8 m/s2)

y = height

Taylor has a mass of 75kg and climbs up on a desk 1 m off the floor. What is his gravitational potential energy with respect to the floor?

Ug = 75 kg 9.8 m/s2 1 m = 735 J

More Lab Info

Power

P = energy/unit time

Let’s say it took Taylor 1.5 seconds to get up on that desk. How much power did he exert?

P = 735 J/ 1.5s = 490 W

Mechanical

Energy of motion and position

• Kinetic – energy of motion

• Potential – energy of position

»potential to move

Mechanical

Energy of motion and position

• Kinetic – energy of motion

• Potential – potential to move

Electromagnetic waves Here’s another representation of Electromagnetic waves. This one shows you examples of the size of the different waves and at what temperature an object must be to emit these waves.

Types of Energy

• Light

• Nuclear

• Thermal

• Sound

Eight Basic Forms of Energy

• Mechanical (Kinetic & Potential)

• Thermal/heat

• Light

• Sound

• Chemical

• Nuclear

• Magnetic

• Electrical