PS Final Exam Review

Weight, which is a Force, is measured in___

• Newtons
• grams
• kilograms
• m/s

The formula for speed is

• dt
• t/d
• d/t

A(n) __________ is a push or pull.

• newton
• acceleration
• force
• momentum

The tendency of an object to resist a change in its state of motion

• unbalanced force
• inertia
• balanced force
• gravity

Which law explains why you need to wear a seat belt? 

• First (law of inertia)
• Second (F=ma)
• Third (Action-Reaction)
• Gravity

Acceleration is defined as the CHANGE in 

• time it takes for one place to move to another place. 
• velocity of an object.
• distance divided by the time interval 
• velocity divided by the time interval 

Can be measured in meters per second (m/s)

• Distance
• Time
• Speed
• Acceleration

A runners races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?

• 10 m/s
• 1000 m/s
• 100 seconds
• 10 seconds

Which graph represents zero acceleration (constant velocity)?

• A
• B
• C
• D

Which graph shows the object standing still?

• A
• B
• C
• D