What does a car need to move? · 11/9/2019 · What does a car need to move? The car needs...

What does a car need to move?

The car needs gasoline or petrol to move to give it

energy. The car won’t go anywhere if it runs out of

gas.

SO….. How do you think a human

being would his/her energy from?

They eat

nuts and

fruits to

have more

energy.

Unit 9 Lesson 1 What Are Some Forms of Energy?

What Is Energy?

Copyright © Houghton Mifflin Harcourt Publishing Company

• Energy is the ability to cause change in matter.

• Everything that moves has energy. • Energy can be stored.Example :People and animals get energy from the foods they eat. Cars get energy from gasoline.


What Is Energy?



Kinetic vs Potential energy


Kinetic and Potential Energy.mp4

Kinetic and Potential Energy.mp4


What are different types of energy?


• Kinetic energy is the energy of motion(movement).

• A boy bouncing on a pogo stick has kinetic energy.


What are different types of energy?


• Potential energy is the energy something has because of its position or condition.

• A rock at the top of a hill has potential energy.

• The higher the object the more potential energy it has.


Match each picture to its type of energy:


Kinetic energy

Potential energy


Get Moving!


• Mechanical energy is the total potential energy and kinetic energy of an object.

• The mechanical energy of a moving roller-coaster car is the sum of its potential energy and its kinetic energy.


Get Moving!


What types of energy can you see

here?

Light energy

Sound energy

What types of energy can you see

here?


•Light energy:


• Light is a form of energy that can travel through space.

• We use light to see.

• Plants use light energy from the sun to make food.


•Sound energy:


• Sound is another form of energy. It is produced by

an object vibrating.

• Pitch describes how high or low a sound is.

• Loud sounds have more energy than quiet sounds


•Sound energy:



Chemical energy:


• Chemical energy is the energy that can be released by a chemical change.

• Chemical energy in foods give you energy.


Electrical energy:


• Electrical energy is the energy that comes from electric current.

• Computers and televisions are examples of things that use electrical energy.



• Electrical energy usually is generated by the chemical energy released from chemical reactions taking place inside the battery.

• The sun and wind also are used to generate electrical energy.

Electrical energy:


Energy Can Change Forms


• Energy can change from one form to another.

• Electrical energy changes to light energy when you turn on a light switch.




• Chemical energy in gasoline changes to mechanical energy when a driver presses the gas pedal in a car.




• Chemical energy changes to light energy in a glow stick.

What does a car need to move? · 11/9/2019 · What does a car need to move? The car needs...

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