Forces-Chapter 3

5. A push or pull on an object
7. ______force is the support force exerted on an object that touches another stable object.
8. When you wash your hands, soap acts as a lubricant and ____ friction.
9. Forces acting on an object that combine and form a net force that is not zero are called ___forces.
11. A 1600's English scientist and mathematician that developed the law of universal gravitation.
12. ____ friction is the resistance in motion of surfaces sliding past each other.
13. A___force is a push or a pull on one object by another object that is touching it.
16. A contact force that resists the sliding motion of two surfaces that are touching.
17. The force exerted by magnetics when they repel or attract one another.
18. Imagine u r pushing on a very large box. Even though u r pushing it, it does not move. This is because your applied force is balanced by ____friction.

1. A magnetic force does not make a compass point north.
2. The law of universal gravitation states that all objects are attracted to each other by a gravitational force.
3. The combination of all the forces acting on an object is the ___force.
4. Forces acting on an object that combine and form a net force of zero are called ___forces.
5. ____ friction is the friction between a surface and a fluid.
6. A___force in which one object directly pushes on another object
10. A force that one object can apply to another object without touching it.
14. When an object, such as a nail comes close to a magnet, the nail becomes a ____magnet.
15. An attractive force that exists between all objects that have mass.