Physics Unit 2 Review

2. The force an object experiences as a result of all the forces acting upon it, particularly in regards to vertical acceleration.
6. Force is equal to mass times acceleration is Newton's _____ law.
7. A book is sitting on the table. The table pushing back on the book is what force?
11. The mass of an object that is twenty kilograms on the moon.
12. The mass of an object that weighs 100 Newtons on Earth.
15. Calculate the force due to gravity of an object with a mass of 7kg on Earth, spell out your answer and include units.
16. Newton's third law states that for every force, there is another force that is equal and ______.
18. Force due to gravity is also called ______.
19. In a Free Body Diagram, the length of the _____ represents the magnitude of the force.

1. The force that opposes the movement of two surfaces that are in contact and are sliding over each other.
3. The normal force is always __________ to the surface of contact.
4. If a net force is zero, an object is said to be in ________.
5. The force that resists the initiation of sliding motion between two surfaces that are in contact and at rest.
8. Person 1 pulls on an object with 20N of force due East, person B pulls with 18N of force due West, what is the direction of the net force?
9. Frictional force always points ________ to the direction of motion.
10. What has the greatest inertia, a car or a cat?
12. You push on a chair with thirty newtons of force, the chair pushes back with _______ of force.
13. This is always the same no matter where you are in the universe.
14. The arrow representing weight on a Force Diagram points ____.
17. The tendency of an object to not accelerate, or to remain in its current state of motion.
20. The net force is the ____ of all the forces in a particular direction.