Forces and Newton's Laws of Motion

What is a Force ?

• A push

• A pull

• A push or pull

• A push or pull exerted on an object in an effort to effect its motion

What do unbalanced forces do ?

• They change motion

• They do not change motion

• They cancel each other out

• They cause an object in motion to come to rest

What do balanced forces do ?

• They change motion

• They do not change motion

• They cancel each other out

• They cause an object in motion to come to rest

How do you determine the net force of an object ?

• You add them up

• You combine them

• You subtract them

Which of the following is the force that opposes motion between two surfaces that are in contact

• Net Force

• Balanced Force

• Friction

• Weight

What factors are Gravity dependent upon ?

• The Masses of the 2 objects

• The Weight of the 2 objects

• The Distance between the 2 objects

• The Size of the 2 objects

Is Gravity the same everywhere ?

• Yes

• No

Where is the gravitational force the greatest ?

• On Earth

• On the moon

Which of the following facts is true ?

• The force of gravity on the moon is 10x stronger than on earth

• The force of gravity on Earth is 10x stronger than on the moon

• The force of gravity on Earth is 100x stronger than on the moon

• Gravity on the moon is 1/6 that of gravity on Earth

What is the formula for Acceleration given to us by Newton?

• A= Vf - Vi / Time

• A = Mass x Force

• A = Mass/Force

• A= Vi - Vf / Time