P5 Reviewer for finals T2

When traveling in a curve, the direction of _______ changes.

• time

• acceleration

• velocity

• speed.

Smooth surface has ______ friction

• less

• more

• maybe

All forces occur in pairs, and these two forces are equal in strength and opposite in direction.

• Newton's first law of motion

• Newton's second law of motion

• Newton's third law of motion

What is the formula of speed?

• S = d/t

• S = t/d

• S = m x v

What is the formula of acceleration?

• A = Change in velocity/ time

• A = d/t

• A = m x v

What is the formula of momentum?

• p = m x v

• p = m / v

• m = m x v

______ is any push or pull from one object to another.

• push

• friction

• force

• pull

_______ is a force that opposes the motion of one object moving past another.

• Force

• Friction

• gravity

• bouyancy

An object at rest tends to stay at rest, and an object in constant motion tends to stay in motion unless acted upon by an unbalanced force.

• Newton's 2nd law of motion

• Newton's 1st law of motion

• Newton's 3rd law of motion

When forces act on an object without changing its motion, they are called _________ force.

• Balanced

• Unbalanced

• motion