ERMS- 8th Science: ch. 12 Motion

What is calculated by distance/time?

• acceleration

• speed

• distance

• density

What is calculated by mass x velocity?

• speed

• distance

• acceleration

• momentum

The correct equation to calculate speed is

• distance/time
• time/distance
• distance x time
• distance/time²

How far will a person go if they jog for 2 hours at a speed of 12 km/hr?

• 6 km
• 0.5 km
• 10 km
• 24 km

A car accelerates from a standstill to 70 m/s in 10 seconds.  What is the acceleration?

• 0.7m/s2
• 7m/s2
• 14m/s2
• none of the above

A car accelerates from 15 km/hr to 60 km/hr in 30 seconds.  What is its acceleration?

• 6m/s2
• 3m/s2
• 1.5m/s2
• 0.75m/s2

Velocity Review: If a cheetah runs 180 miles in 3 hours, what is its average speed?

• 60 hours
• 60 miles
• 60 miles/hour
• 60 miles/second/second

What is happening in this graph from point B to C?

• The object is going down a hill.
• The object is returning to its starting location.
• The object is slowing down.
• The object is staying still.

Tags

CCSS.HSF.IF.B.4

What is happening in this graph from point A to B?

• The object is accelerating.
• The object is not moving.
• The object is decelerating.
• The object is moving at a constant speed.

Tags

CCSS.8.EE.B.5

What is happening in this graph from point B to C?

• The object is going down a hill.
• The object is returning to its starting location.
• The object is slowing down.
• The object is staying still.