Test-Motion and Newton's Laws of Motion

Question 1

1st Law

Answer 1

An object at rest will stay at rest and an object in motion will stay in motion unless acted upon by an unbalanced force.

Question 2

2nd law

Answer 2

Force=mass times acceleration. F=ma

Question 3

3rd law

Answer 3

For every action there is an equal and opposite reaction

Question 4

Inertia

Answer 4

Is the tendency of objects to remain in motion or to stay at rest unless acted on by an unbalanced force.

Question 5

Force

Answer 5

• push or pull
• you exert a force when you push or pull an object
• Force=mass x acceleration

Question 6

Unbalanced forces

Answer 6

• result in no motion

- unequal forces acting on each other in opposite directions

Question 7

Motion

Answer 7

• an object is in motion when it’s distance from another object is changing
• whether an object is moving or not depends on your P.O.V

Question 8

Speed

Answer 8

• the distance an object travels in one unit of time
• Speed=distance/time
• unit=meters per second
• average speed=total distance/total time

Question 9

Acceleration

Answer 9

• the rate at which velocity changes
• increasing speed, decreasing speed or changing direction
• Acceleration=final velocity(v2)-initial velocity(v1)/time

Question 10

Velocity

Answer 10

-Velocity=speed+direction Ex: 150 mph west

Question 11

Every action has an______ and________reaction

Answer 11

Equal and opposite

Question 12

The greater the mass,the__________amount of force needed.

Answer 12

Greater

Question 13

Everyone knows that heavier objects require_______force to move the same distance as_____________objects.

Answer 13

More and lighter

Question 14

What is the difference between speed and velocity?

Answer 14

Velocity=speed+direction

Speed is distance traveled in an amount of time NO matter the direction