The picture of the position vs. time graph shows an object that is...

• accelerating/speeding up
• moving at a constant speed 
• not moving 
• accelerating/slowing down. 

Tags

NGSS.HS-PS2-1

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 

Tags

NGSS.HS-PS2-1

Why does a car accelerate as it round a corner at a constant speed?

• Its direction changes
• It doesn't
• It slows down
• Its speeds up  

Tags

NGSS.HS-PS2-1

Acceleration only takes place when things speed up. 

• True
• False

Tags

NGSS.HS-PS2-1

Determine the motion of the car.

• at rest 
• moving at constant speed
• speeding up
• slowing down

Tags

NGSS.HS-PS2-1

In each of the following cases, determine where the car has no acceleration ?

• A car shortly after a stoplight turns green.
• A car approaching a red light
• A car with the cruise control set at 80 km/h
• A car moving down a ramp

Tags

NGSS.HS-PS2-1

What kind of acceleration is shown here?

• positive
• negative
• none
• varies

Tags

CCSS.HSF.IF.B.4

Which section of the graph shows decreasing velocity?

• CD
• DE
• EF
• GH

Tags

CCSS.HSF.IF.B.4

A golf ball accelerates off a tee at 15m/s², changing its velocity from 0m/s to 50 m/s down the fairway. How long did it take the golf ball to accelerate?

• 750 seconds
• 35 seconds
• 0.3 seconds
• 3.3 seconds

Tags

NGSS.HS-PS2-1

A dog runs with an initial speed of 7.5 m/s on a waxed floor.  It slides to a stop in 15 seconds.  What is the acceleration?

• -7.5 m/s
• -7.5 m/s²
• -0.5 m/s²
• 7.5 mi//hr

Tags

NGSS.HS-PS2-1