1. Negative acceleration is also called _____.
A) speed
B) velocity
C) deceleration
D) displacement
2. An object with an acceleration of –10 m/s2 is _____.
A) speeding up 10 m/s every second
B) slowing down 10 m/s every second
C) moving at a constant speed of –10 m/s
D) moving at a constant velocity of –10 m/s
3. When an object's speed and direction are known, so is its _____.
A) speed
B) velocity
C) acceleration