Unit 4: Forces Review

2. What is the force that the ground pushes on the object (perpendicular to the surface)?
3. What is the resistance from a surface to an object
5. Acceleration is produced when a force acts upon a mass
7. English Scientist who developed 3 laws of motion
8. Attraction or repulsion that arises between electrically charged particles in motion
9. Forces on an object cancel out so the object stays in one place
10. Attractive or repulsive force between two electrically charged stationary objects.
11. An object at rest stays at rest unless acted upon by an unbalanced force
14. What is the friction force that air exerts on an object
17. Forces exerted without physical contact
18. What is the force that is done to an object?
19. What is the force that is transmitted through a string, rope, cable or wire when it is pulled tight?

1. What is the force that attracts a body toward the center of the Earth
2. The overall force acting on an object
4. Forces exerted by contact between objects
6. Forces on an object are stronger on one side so the object moves in that direction
12. A property of matter by which it continues in its existing state of rest or uniform motion in a straight line
13. For every action there is an equal and opposite reaction.
15. A push or a pull described by its strength and direction. Measured in Newtons (N)
16. An object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force