1. OCS Applied Science Mrs. Bonifay
FORCE AND MOTION
OCS Applied Science
Mrs. Bonifay

2. Some Words to Know…….. Force = any push or pull on an object
Motion = any movement or change in
position or place
Friction = a force that acts against moving
objects
Inertia = the tendency of an object to resist
change to its state of motion
Newton = a measure of force (Named for Sir
Isaac Newton)

3. Sir Isaac Newton Sir Isaac Newton is well-known
for his three laws of motion.
Some of you may remember
Newton as the man who
discovered gravity when an
apple dropped on his head
(or so the story goes!).

4. LAW 1
An object moving in a straight line will keep moving in a straight line, unless an outside force is applied to it. Also, an object at rest (not moving) will stay at rest.
Inertia is the word for law 1.

5. Greater force is required to move
LAW 2
Force will cause a change in the motion of an object. The change in motion depends on the amount of force and the mass/weight of the object.
Greater force is required to move
objects with more
mass.

6. LAW 3
For each action, there is an equal and opposite reaction.

7. Fun with Force and Motion
One of the best places to observe Newton’s Laws of Motion is an amusement park. Can you name some things that might be examples?

8. Roller Coasters http://www.youtube.com/watch?v=0WpNSImh6Z8
Newton's first law of motion applies to both objects in motion and objects at rest. Objects in motion have inertia because they want to remain in motion. For example a roller coaster has inertia. When it starts a drop it wants to continue moving in the same direction at a constant speed. It doesn't however because the tracks act as an outside force and change the roller coaster car's direction

9. Bumper Cars
Newton’s third law of motion comes into play on the bumper cars. This law, the law of interaction, says that if one body exerts a force on a second body, the second body exerts a force equal in magnitude and opposite in direction on the first body. It's the law of action-reaction, and it helps to explain why you feel a jolt when you collide with another bumper car.