Motion: Speed, Motion, Velocity, and Acceleration

The location of an object or place is called

• position

• velocity

• acceleration

A place or object used for comparison to determine if something is in motion

• position

• acceleration

• reference point

The motion of one body with respect to another stationary (not moving) reference point.

• acceleration

• velocity

• relative motion

A measure of how fast something moves or the distance it moves , in a given amount of time. (unit = m/s ) or (unit = km/s ).

• acceleration

• speed

• velocity

What is speed in a specific direction. Example: 85 km/min Southeast (SE) called?

• velocity

• speed

• acceleration

What is a measurement of how quickly the velocity is changing (unit = m/s2 )?

• speed

• acceleration

• velocity

What is a velocity or acceleration measurement quantity that has both size and direction. Represented with arrows. →

• vector

• reference point

• acceleration point

9. The length of the line of the vector indicates the _________. The longer the vector (arrow) the faster it moves.

• direction

• speed

The direction of the arrow is pointing indicates the _____ on a compass.

• direction, (N,S,E,W)

• speed

Acceleration can only occur if there is an increase in velocity.

• True

• False