FORCES AND ENERGY

UNIT 6: FORCES AND ENERGY

NATURAL SCIENCE SECOND LEVEL PRIMARY

Mª Isabel López

CEIP SANTA ANA MADRIDEJOS (TOLEDO)

WHAT DIFFERENT ACTIVITIES CAN YOU NAME? HOW DO THESE PEOPLE AND OBJECTS MOVE?

FORCES

PULL

ENERGY (Types of energy)

WIND

RENEWABLE SOURCES

NONRENEWABLE SOURCES

THE SUN

PETROLEUM

LOUD AND SOFT SOUNDS

WIND

COAL

HIGH AND LOW SOUNDS

SOLAR PUSH

ELECTRICITY AND HUMAN ENERGY

SOUND AND LIGHT

HEAT WATER

GRAVITY HUMAN

HYDEL

ELECTRICAL

PLEASANT AND UNPLEASANT SOUNDS

NATURAL AND ARTIFICIAL LIGHT

FORCES Force is the push or pull aplied on an object.

A force can make an object move, stop, break, change shape or change the direction.

Gravity is a force that pulls objects down to the ground.

We move a tennis ball when we hit it with a racket.

We can break an object.

We can also stop the ball.

A magnet can move metal objects without touching them.

We can change the shape of plasticine.

Gravity is a force.

When you throw an object up, falls back to the ground.

ENERGY • All tools and machines need energy to move.

Energy is the ability to do some work.

• Energy can be stored.

• There are different types of energy.

• Energy comes from different sources.

TYPES OF ENERGY

WIND ENERGY

SOLAR ENERGY

HEAT ENERGY

HUMAN ENERGY

HYDEL ENERGY

ELECTRICAL ENERGY

RENEWABLE SOURCES There are renewable sources.They will never run out.

Some renewable sources are the Sun, water or wind.

THE SUN

WIND

WATER

NON-RENEWABLE SOURCES There are non-renewable sources.They will run out one day.

Some non-renewable petroleum or coal.

PETROLEUM

sources

COAL

are

ELECTRICITY

AND

HUMAN ENERGY

Many of the machines that we use every day work with electricity COMPUTER

FAN

REFRIGERATOR

DRILL WASHING MACHINE

TV

Some machines, for example bicycles, work with human energy

PENCIL SHARPENER TINOPENER

RAZOR

BICYCLE

SQUEEZER

SCISSORS

SOUND Sound is a type of energy.

There are loud and soft sounds; high and low sounds; and pleasant and unpleasant sounds.

Objects make different sounds.

Loud sounds, such as an explosion.

Soft sounds, such as water in a fountain.

High sounds, such as a whistle.

Pleasant sounds, such as music.

Low sounds, such as a big drum.

Unpleasant sounds, such as a drill.

LIGHT NATURAL LIGHT

ARTIFICIAL LIGHT

THE SUN A CANDLE

A TORCH

A FIRE

THE MOON A LAMP

FORCES AND ENERGY