Newton's Third Law of Motion states that for every action, there is an equal and opposite reaction. It describes how when one object exerts a force on a second object, the second object exerts a force back that is equal in magnitude and opposite in direction. The document provides examples of this law, such as a person jumping out of a boat into water will push themselves forward but also push the boat backwards with an equal force.

1. Newton’s Third Law of
Motion
Newton’s Third law describes effects of action and reaction

2. Force
• Force- Push or a pull on
an object
– Object speeds up, slows
down, or turns from force
• More than one force can act
on an object at the same time
• Net Force- Combination
of all the forces acting on
an object.
• Force= Mass X Acceleration

3. Balanced and Unbalanced Forces
• Balanced Forces- Two or
more forces exerted on
an object that cancel
each other and do not
change object’s velocity
– Net force is zero
• Unbalanced Forces-
Effects of the forces don’t
cancel and the object’s
velocity changes
– Net force is not zero

4. Newton’s Third Law of Motion
• Isaac Newton (1642-1727)-
Explained motion of objects in 3
laws of motion
• Newton’s Third Law of Motion-
The third law of motion states
that for every action there is a
an equal and opposite
reaction that acts with the
same momentum and the
opposite velocity.

5. Newton’s Third Law of Motion
• The Third law of motion states that for every action, there is an equal
and opposite reaction.
• In other words: When an object exerts a force on a second object,
the second one exerts a force on the first that is equal and opposite
in direction.

6. Examples of Newton’s Third Law
• When you jump off a small rowing boat into water, you will push
yourself forward towards the water. The same force you used
to push forward will make the boat move backwards.
• When air rushes out of a balloon, the opposite reaction is that
the balloon flies up.
• When you dive off of a diving board, you push down on the
springboard. The board springs back and forces you into the
air.

7. Examples of Newton’s Third Law
• When you jump off a small rowing boat into water, you will push
yourself forward towards the water. The same force you used
to push forward will make the boat move backwards.
• When air rushes out of a balloon, the opposite reaction is that
the balloon flies up.
• When you dive off of a diving board, you push down on the
springboard. The board springs back and forces you into the
air.