Energy, Force and Motion

Energy exists in many forms and moves from one form to another. Forces cause

motion to occur.

Unit Essential Question

How does energy, force and motion play a part in your life?

LEQ 1: What is movement (motion)?

Concept: Interaction of forces and motion

How do things move? Above Below Ahead Behind Up Down Horizontally Vertically Right Left

Concept: Interaction of forces and motion

How do we know something has moved?

By looking at the things that are not moving around it.

FRAME OF REFERENCE

Concept: Interaction of forces and motion

You can tell that an object has moved when its __________ has changed.

position

Concept: Interaction of forces and motion

Now answer the question:

What is movement (motion)?

Concept: Interaction of forces and motion

LEQ 2: What makes objects move, stop or change direction?

Concept: Interaction of forces and motion

Concept: Interaction of forces and motion

Force

WHAT IS FORCE?

Any push or pull that causes an object to move, stop or change speed or direction.

Concept: Interaction of forces and motion

Force The greater the force, the greater the change

in motion.

The bigger an object is, the less effect a force will have on it. The smaller

an object is, the

more effect a force

will have on it.

Concept: Interaction of forces and motion

Inertia

Inertia keeps an object still or keeps it moving.

A moving object will keep moving until something stops it.

An object that is not moving will not move until something moves it.

Concept: Interaction of forces and motion

When an object is in motion it tends to stay ...

Concept: Interaction of forces and motion

When an object is still it tends to remain ...

Concept: Interaction of forces and motion

This is called…

Concept: Interaction of forces and motion

What is an example of a force between surfaces that slows or stops objects?

Concept: Interaction of forces and motion

Friction creates ______.heat

Concept: Interaction of forces and motion

Friction is the resistance to motion made by two objects rub each other.  

Rub your hands together! What happens? The heat you feel is friction. Try faster and slow. What happens?

When you pull the brakes on your bicycle. The brake pressing against the tire and the tire rubbing against the street is friction. 

 

Think of bowling. As the ball goes down the lane what happens? The ball begins to slow, this is friction. The ball may lean or start

rolling one direction or the other, this is friction.  

Concept: Interaction of forces and motion

Gravity

The force that makes things fall to the ground on Earth is called gravity.

Gravity also holds Earth and the other planets in their orbits around the Sun.

The force of gravity also exists on the moon but it is not as strong as it is on the Earth. This is because the moon is much smaller than the Earth.

Concept: Interaction of forces and motion

Now answer the question.

What makes objects change speed or direction?

Concept: Interaction of forces and motion

LEQ 3: What connections can we make between force and motion?

Concept: Interaction of forces and motion

Do your Work!!!

WHAT IS WORK?

Work is done when a force is used to move an object a certain distance.

Concept: Interaction of forces and motion

LEQ 4:What are the different types of energy?

Concept: Types of Energy

Energy

Energy is the ability to do work.

Concept: Types of Energy

Energy

Two types of energy:

Kinetic (motion)

Potential (right now,it’s not moving, but it has the ability to move)Energy game

Concept: Types of Energy

Energy

Kinetic-moving energy (energy of motion)

Concept: Types of Energy

The energy of motion is __________ energy.

kinetic

Concept: Types of Energy

Potential Energy

Potential- stored energy (energy waiting to be used)

Concept: Types of Energy

The energy of position is _____________ energy.

potential

Concept: Types of Energy

Kinetic Potential

Concept: Types of Energy

Name the type of energy in each of the following

statements.

Concept: Types of Energy

The ball is rolling down the hill.

Concept: Types of Energy

The roller coaster is sitting at the top of the track.

Concept: Types of Energy

The pencil fell off the edge of the desk.

Concept: Types of Energy

The skier is at the top of the ski jump.

Concept: Types of Energy

Play the game!!!!

POTENTIAL KINETICENERGY

Concept: Types of Energy

Now answer the question:

What are the different forms of energy?

Concept: Types of Energy

LEQ 5: What are the different forms of energy?

Concept: Forms of Energy

Forms of Energy - Chemical

Ex: stored energy in food and fuel.

Concept: Forms of Energy

Forms of Energy - Electrical

Ex: batteries, electric in homes

Concept: Forms of Energy

Forms of Energy - Light

Ex: sun and lasers

Concept: Forms of Energy

Forms of Energy – Mechanical

Ex: wind, water falling over a water fall, sound

Concept: Forms of Energy

Forms of Energy - Nuclear

Ex: Sun, nuclear fusion

Concept: Forms of Energy

Forms of Energy - Sound

Ex: music, your voice

Concept: Forms of Energy

Forms of Energy - Thermal

Ex: stove, heaters, matches

Concept: Forms of Energy

Watch the Brainpop movie about energy

Now answer the question:

What are the different forms of energy?

Concept: Forms of Energy

LEQ 6: How does energy change form?

Concept: Conversion of Energy

Forms of Energy

CAN ENERGY CHANGE FORM? YES!

Ex: The fuel in a rocket changes from chemical energy to mechanical energy when the fuel burns

Concept: Conversion of Energy

Choose a picture and explain how the energy changes form.

Can you answer the Unit Essential Question???

How does energy, force and motion play a part in your life?

Think about what you do? Where does the energy come from? What is your body doing? What is moving around you?