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WHAT IS ENERGY? Kinetic Energy

WHAT IS ENERGY? Kinetic Energy. Energy is the ability to do work or cause a change. Energy is the ability to do work or cause a change

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Page 1: WHAT IS ENERGY? Kinetic Energy. Energy is the ability to do work or cause a change. Energy is the ability to do work or cause a change

WHAT IS ENERGY?Kinetic Energy

Page 2: WHAT IS ENERGY? Kinetic Energy. Energy is the ability to do work or cause a change. Energy is the ability to do work or cause a change

• Energy is the ability to do work or cause a change.

Page 3: WHAT IS ENERGY? Kinetic Energy. Energy is the ability to do work or cause a change. Energy is the ability to do work or cause a change

• The 2 basic kinds of energy are kinetic and potential energy.

• Kinetic energy is the energy an object has due to its motion.

Page 4: WHAT IS ENERGY? Kinetic Energy. Energy is the ability to do work or cause a change. Energy is the ability to do work or cause a change

WHAT FACTORS AFFECT KINETIC ENERGY?

• KE depends on an object’s mass and velocity.

• KE increases as velocity increases.

• KE increases as mass increases.

Page 5: WHAT IS ENERGY? Kinetic Energy. Energy is the ability to do work or cause a change. Energy is the ability to do work or cause a change

CALCULATING KE

• KE = ½ x mass x velocity2

• Example:

A 1350kg car travels at 12m/s. What is its kinetic

energy?

KE = ½ x mass x velocity2

KE = ½ (1350kg)(12m/s) 2

KE = 97200J


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