energy

7
ENERGY!!!!!!!!

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Page 1: Energy

ENERGY!!!!!!!!

Page 2: Energy

Energy

Energy is the ability to do work or cause change.

When a living thing does work on another object, some of that energy is transferred. Examples?

Page 3: Energy

Kinetic Energy 1

Kinetic energy is the energy an object has due to its motion; this depends on both mass and speed.

More mass means more kinetic energy

More speed means more kinetic energy

Examples?

Page 4: Energy

Kinetic Energy 2

Calculating Kinetic Energy:

Kinetic Energy = 1/2 x Mass x Speed2

Note- changing the speed has a greater impact on the object’s kinetic energy than changing the mass.

Page 5: Energy

Potential Energy 1

Potential Energy is stored energy that results from an objects position or shape. This object has the potential to do work. When the object was placed where it is or

shaped a certain way, energy was transferred to it. Examples?

Page 6: Energy

Potential Energy 2

Gravitational Potential Energy is an objects potential energy based on gravity. This is dependant on its height relative to a reference point and it’s weight.

Elastic Potential energy is the potential energy of an object that can be stretched or compressed

Page 7: Energy

Law of Conservation of Energy

According to the law of conservation of energy, energy cannot be created or destroyed. (sound familiar? What is another law that is

similar to this?)