Review Worksheet Answers:
Motion
A. position
1. displacement
2. reference point
B. Speed
1. s = d/t
2. constant
3. instantaneous
C. speed; direction
D. acceleration
1. positive
2. negative; deceleration
3. time
a. Vf – V1/ t
b. zero
4. speed up; slow down; change direction
Newton’s Laws
motion
Newton’s First Law
A. rest; continue (in motion); force
1. force
2. Newtons
3. inertia
4. mass; more (greater)
B. --1.
2.
3.
4.
balanced
unbalanced
direction/position/velocity (answers can vary)
net force
Newton’s Second Law
A. mass; force; move
B. move
1. mass
2. a = f/m
3. force
C. force
1. acceleration
2. f= ma
D. --1. same
a. gravity
b. same
2. rate
a. mass; acceleration
b. f= ma (f = m x 9.8 m/s/s)
3. gravity
a. mass; acceleration
b. weight = mg (weight = mass x gravity)
E. friction
1. static
2. sliding
3. rolling
4. resistance
Newton’s Third Law
A. forces
1. equal
2. action
3. pairs
B. opposing/paired
1. --2. acceleration
3. mass
C. force; motion
1. p = mv
2. constant
D. forces