Force & Pressure

1. Force : push & pull

1.1. New node

2. Effects of a force

2.1. 1. Change the shape of an object

2.2. 2. Increase or decrease the speed of a moving object.

2.3. 3.Stop a motion

2.3.1. New node

2.4. 4.move a stationary object

2.5. 5.Change direction of a moving object

3. Pressure : is the force per unit area applied in a direction perpendicular to the surface of an object.

4. Elastic spring force

5. Gravitaional force

6. magnetic force

7. Frictional force

8. SI unit for Pressure : Pa = N/m2

9. to find pressure : force divide by area

9.1. New node

10. work done = force X displacement = (unit = J)