Forces Review

2. this is a type of friction that occurs when an object goes through a liquid or gas
3. these are associated with electrical force and are positive or negative
8. this law of motion states an object at rest will stay at rest unless acted upon by a balanced force
10. this law states that the force of gravity acts on all objects in the universe
12. These forces can cause an object to speed up, slow down, or change direction.
15. the distance an object travels per unit of time
21. any object that orbits around another object in space
22. These types of forces do not need to touch to exert force.
23. This is the unit that forces are measure in.
25. this law gives us the formula for acceleration
26. these objects have north and south poles

1. the amount of matter in an object. This does not change
3. These types of forces much touch to exert force.
4. this is a contact force that occurs when two objects rub together
5. The combination of all forces acting on an object.
6. the state in which one object's distance from another is changing
7. this law states for every action there is an equal an opposite reaction
9. in order to determine if you are moving you would need one of these to compare yourself to (a tree while driving)
11. objects falling through the air experience this as they fall
13. an objects tendency to resist a change in motion
14. speed in a given direction
16. a force that pulls objects with mass toward each other
17. the force of gravity on a person is measured in this
18. this is a push or a pull
19. Equal forces acting on one object in opposite direction
20. these types of trains use magnets to reduce friction
24. this is created when friction occurs as two objects rub together