1. Force and Motion
Chastain 2017
3.2

2. S8P3b. Demonstrate the effect of balanced and unbalanced forces on an object in terms of gravity, inertia, and friction.

3. Newton’s First Law
An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
Also Called the Law of Inertia.

4. Inertia
This is the tendency of an object to resist a change in motion.
Inertia depends on Mass. Some objects have more inertia than others.

5. Newton’s 2nd Law Acceleration is produced when a force acts on a mass.
The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).

6. Newton’s 3rd law
For every action there is an equal and opposite re-action.
SIMPLY: If you push an object, that object pushes back in the opposite direction equally hard.

7. Examples: Pushing or pulling
Force
Using energy to do work.
Examples: Pushing or pulling
ube.com/watch?v =_LdcxCdB-s8

8. balanced Force
Equal forces acting on one object in opposite directions are called balanced forces. Each force is balanced by the other.
Balanced forces acting on an object do not change the objects motion.

9. unBalanced Force
When the force acting on one side of an object is less or more than on the other side of the object.
Unbalanced forces acting on an object result in a net force and cause a change in the object’s motion.

10. On-Level: TOTD
How would you explain the affects of mass on an object’s movement across a smooth surface versus its movement across a rough surface?

11. Advanced: Science is H.O.T.
How could you compare/contrast the theories of Newton and Einstein?