Unit 3 Forces

Question 1

Newtons first law

Answer 1

An object in motion stays in motion at a constant velocity, and an object at rest stays at rest, unless acted upon by an unbalanced force

Question 2

Inertia (Newtons First Law)

Answer 2

An objects resistance to change its motion

Question 3

Force

Answer 3

An interaction that causes an objects motion to change

Question 4

Gravity (Fg)

Answer 4

Force that pulls things toward the center of the earth

Question 5

Friction (Ff)

Answer 5

Force that opposes the motion of an object that’s rolling or sliding on a surface

Question 6

Air resistance (Fa)

Answer 6

Force that opposes the motion of an object

Question 7

Applied Force (FA)

Answer 7

Force exerted by a person or another object

Question 8

Normal Force (Fn)

Answer 8

Supporting force exerted on an object in contact with a surface

Question 9

Net Force (Fnet)

Answer 9

The combination of all forces on an object

Question 10

Newtons second law

Answer 10

The acceleration of an object depends on its mass and the force acting on it

Question 11

Acceleration Due to Gravity

Answer 11

9.81 m/s2

Question 12

Newtons second law

Answer 12

F=ma

Question 13

Newtons third law

Answer 13

For every action there is an equal and opposite reaction