Describing Motion

A place or object used for comparison to determine if another object is in motion is called a

• comparison point
• reference point
• point of view
• motion detector

Speed =

• distance / time
• time / distance
• distance * time

A distance-time graph shows an object's

• frame of reference

• speed

• acceleration

• favorite food

Tags

NGSS.MS-PS3-1

You walk 10 meters to math class in 20 seconds. Your average speed is

• 2 m/s
• 0.5 m/s
• 200 m/s
• 5 m/s

On a distance-time graph, a straight line ALWAYS indicates that an object’s speed is _____.

• constant

• zero

• increasing

• decreasing

Tags

NGSS.MS-PS3-1

Change in speed over a given period of time is

• velocity
• motion
• speed
• acceleration

On a distance-time graph, the steeper the slope _____

• the slower the speed

• the faster the speed

• less acceleration

• greater acceleration

The rate at which velocity changes is called 

• motion
• average speed
• instantaneous speed
• acceleration

Tags

NGSS.MS-PS2-2

What is the unit for acceleration?

• m/s

• m

• m/s²

• s

Tags

NGSS.MS-PS2-2

What is the unit for speed

• Km

• s

• m/s

• m/s²