Acceleration

the unit of acceleration is

• (m/s²)

• jouls

• m

• s

Acceleration: is the rate of change in

• velocity

• speed

• displacement

• direction

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NGSS.HS-PS2-1

As the ball falls towards the ground, its velocity

• zero

• decreases

• at rest

• increases

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NGSS.MS-PS2-4

NGSS.MS-PS3-1

NGSS.MS-PS3-5

which isn't an example of acceleration

• When the car is speeding up.

• When the car slows down.

• When you fall off a bridge.

• no change in velocity

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NGSS.HS-PS2-1

Which of the following objects is accelerating?

• A car driving in a northwest at a constant speed of 35 mph.

• A car driving southwest at a constant speed of 35 mph.

• A car driving in a circle at a constant speed of 35 mph.

  Back

• A car driving south at a constant speed of 45 mph.

When a car goes around a corner at 20 mph, why do we say it  accelerates?

• The car is accelerating because of the velocity is constant
• The car accelerates because it's going 20 mph
• Cars always accelerate when they are in motion
• The car is accelerating because it's changing direction

Acceleration only takes place when things speed up. 

• True
• False

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 turning a curve at a constant speed

Acceleration can be classified as _______________

• Speeding up
• Slowing Down
• Changing directions
• All of the above

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. 

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NGSS.MS-PS3-1