energy laws & types. energy: the ability to do work or cause change

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Energy Laws & Types

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Page 1: Energy Laws & Types. Energy: the ability to do work or cause change

Energy Laws & Types

Page 2: Energy Laws & Types. Energy: the ability to do work or cause change

• Energy: the ability to do

work or cause change

Page 3: Energy Laws & Types. Energy: the ability to do work or cause change

•Energy is always involved when

physical or chemical changes occur in

matter

Page 4: Energy Laws & Types. Energy: the ability to do work or cause change

•You can detect the effects of energy when matter is moved, when

it reacts, or when energy is transformed

from one form to another form

Page 5: Energy Laws & Types. Energy: the ability to do work or cause change

Law of Conservation of Energy:

Energy cannot be created or destroyed, it can only

change from one form to another

Page 6: Energy Laws & Types. Energy: the ability to do work or cause change

•2 Main Types of Energy:

Potential or

Kinetic

Page 7: Energy Laws & Types. Energy: the ability to do work or cause change

oPotential energy is stored energy that has not been used.

Page 8: Energy Laws & Types. Energy: the ability to do work or cause change

Examples Potential Energy

Page 10: Energy Laws & Types. Energy: the ability to do work or cause change

Food

Page 11: Energy Laws & Types. Energy: the ability to do work or cause change

Gasoline (fuel)

Page 12: Energy Laws & Types. Energy: the ability to do work or cause change

Pulled back Bow and Arrow

Page 13: Energy Laws & Types. Energy: the ability to do work or cause change

Rollercoaster at top of hill

Page 14: Energy Laws & Types. Energy: the ability to do work or cause change

Do you have more

examples of potential energy?

Page 15: Energy Laws & Types. Energy: the ability to do work or cause change

•An object has potential energy

because of its position, shape, or

chemistry

Page 16: Energy Laws & Types. Energy: the ability to do work or cause change

•An object’s potential energy is increasing as it gets higher

Page 17: Energy Laws & Types. Energy: the ability to do work or cause change

•The more mass an object has the

more potential energy it has

Page 18: Energy Laws & Types. Energy: the ability to do work or cause change

oKinetic energy is energy of

motion.

Page 19: Energy Laws & Types. Energy: the ability to do work or cause change

Examples Kinetic Energy

Page 20: Energy Laws & Types. Energy: the ability to do work or cause change

Swinging a Hammer

Page 21: Energy Laws & Types. Energy: the ability to do work or cause change

Throwing a Ball

Page 22: Energy Laws & Types. Energy: the ability to do work or cause change

Running

Page 23: Energy Laws & Types. Energy: the ability to do work or cause change

Weather

Page 24: Energy Laws & Types. Energy: the ability to do work or cause change

Bowling

Page 25: Energy Laws & Types. Energy: the ability to do work or cause change

Do you have more

examples of kinetic

energy?

Page 26: Energy Laws & Types. Energy: the ability to do work or cause change

•The amount of kinetic energy an

object has depends on its mass and

speed

Page 27: Energy Laws & Types. Energy: the ability to do work or cause change

•The faster the object goes, the

more kinetic energy the object

has

Page 28: Energy Laws & Types. Energy: the ability to do work or cause change

•An object with a larger mass will

have more kinetic energy than a

smaller object at the same height

Page 29: Energy Laws & Types. Energy: the ability to do work or cause change

•As the potential energy increases, the kinetic energy

decreases

Page 30: Energy Laws & Types. Energy: the ability to do work or cause change

•As the potential energy decreases, the kinetic energy

increases

Page 31: Energy Laws & Types. Energy: the ability to do work or cause change

Examples both

Potential and Kinetic energy

Page 32: Energy Laws & Types. Energy: the ability to do work or cause change
Page 33: Energy Laws & Types. Energy: the ability to do work or cause change

Pendulum

Page 34: Energy Laws & Types. Energy: the ability to do work or cause change

Trampoline

Page 35: Energy Laws & Types. Energy: the ability to do work or cause change

Avalanche

Page 36: Energy Laws & Types. Energy: the ability to do work or cause change

Waterfall

Page 38: Energy Laws & Types. Energy: the ability to do work or cause change

http://phet.colorado.edu/en/simulation/energy-skate-park-basics

Energy Skate Park

Page 39: Energy Laws & Types. Energy: the ability to do work or cause change
Page 40: Energy Laws & Types. Energy: the ability to do work or cause change
Page 41: Energy Laws & Types. Energy: the ability to do work or cause change
Page 42: Energy Laws & Types. Energy: the ability to do work or cause change

What is the relationship of potential and

kinetic energy?

Page 43: Energy Laws & Types. Energy: the ability to do work or cause change

Potential and kinetic energy are inversely proportional