Forces and Motion Unit Test

Question 1

Weight is a __

Answer 1

Force

Question 2

How do you calculate weight?

Answer 2

Mass * Acceleration due to gravity(9.8 m/s^2)

Question 3

Impulse

Answer 3

Force applied over time

Question 4

Percent Difference Equation

Answer 4

|x-y|/((x+y)/2) * 100

Question 5

Percent change equation

Answer 5

FOO - (Final - Old)/ Old * 100

Question 6

Momentum

Answer 6

How much mass is in motion

Question 7

Impulse

Answer 7

Overall effect of a force over a period of time

Question 8

Newton’s First Law

Answer 8

Law of Inertia - Objects tend to stay in their current state of motion unless acted upon by an outside force

Question 9

Newton’s Second Law

Answer 9

Law of Mass & Acceleration

F = ma

Question 10

Newton’s Third Law

Answer 10

For every force applied, an equal and opposite force is applied

Question 11

What’s the difference between the first and second laws compared to the third?

Answer 11

Newton’s first two laws apply to single bodies

Newton’s third law applies to all objects

Question 12

∆p/∆t =

(change in momentum)/(change in time) =

Answer 12

Force because

∆p = F * ∆t