Unit 1, Force, Newtons 3 Laws of Motion, Friction

Question 1

What are the 2 types of Force? (give ex.)

Answer 1

Contact Force
> Pushing a car up a hill and kicking a ball

Non-Contact Force
> Gravitational Force
> Magnetic Force

Question 2

What are the types of contact force?

Answer 2

Applied force, Spring force, Drag force, frictional force, and Normal force

Question 3

What are the types of non-contact force?

Answer 3

Magnetic force, electric force, and gravitational force

Question 4

What is the first law of motion? (explain what it is)

Answer 4

Law of inertia - A tendency of an object to resist change in its motion

Question 5

What is the equilibrium

Answer 5

When a non-zero net force is acting on an object is balance by a single force.

Question 6

What is the Formula for the Law of Acceleration?

Answer 6

F = ma

Question 7

What are the key concepts of action-reaction?

Answer 7

> Every action force is match by a reaction force
These forces are equal in magnitude and opposite in direction