1. FORCE Mr. Skirbst Physical Science Topic 04

2. What is force?

3. - a push or a pull on an object

4. What is force? Forces can enhance/cancel each other - a push or a pull on an object

5. What is force? Forces can enhance/cancel each other Unbalanced forces = movement - a push or a pull on an object

6. What is friction?

7. - A force acting in the opposite direction of a moving object

8. NEWTON’s 3 LAWS of MOTION

9. 1.INERTIA (Latin for “lazy”)

10. NEWTON’s 3 LAWS of MOTION 1.INERTIA (Latin for “lazy”) - objects at rest (or in motion) remain that way until acted upon by a force

11. NEWTON’s 3 LAWS of MOTION 2.F = (m) (a)

12. NEWTON’s 3 LAWS of MOTION 2.F = (m) (a) - force = mass x acceleration - “The harder you push, the faster you go” - “The bigger they are, the harder they fall.”

13. NEWTON’s 3 LAWS of MOTION 3.Action - Reaction

14. NEWTON’s 3 LAWS of MOTION 3.Action - Reaction - for every action, there is an equal and opposite reaction

15. NEWTON’s LAW of UNIVERSAL GRAVITATION

16. - ALL objects attract each other by the force of gravity

17. NEWTON’s LAW of UNIVERSAL GRAVITATION - ALL objects attract each other by the force of gravity - GRAVITY – force of attraction between objects with mass

18. NEWTON’s LAW of UNIVERSAL GRAVITATION - WEIGHT – measures force of gravity on an object equation: w = (m)(g) Where g = acceleration due to gravity