Acceleration

Acceleration only takes place when things speed up. 

• True
• False

A car starts from rest at a stop light and reaches 20 m/s in 3.5 s. Determine the acceleration of the car.

• 2.2m/s²
• 7.0m/s²
• 5.7m/s²
• 70m/s²

Tags

NGSS.MS-PS2-2

A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?

• 24 m/s²
• 18 m/s²
• 16 m/s²
• 16 m/s

Tags

NGSS.MS-PS2-2

NGSS.MS-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  

The equation for acceleration is...

• 
• 
• 
• 

Tags

NGSS.MS-PS2-2

The SI unit for acceleration is

• mph

• ft/sec

• m/s²

• m/s

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

Tags

NGSS.MS-PS2-2

A negative acceleration means that your object is _____. 

• not accelerating
• not moving
• speeding up 
• slowing down 

A positive acceleration means that your object is _____.

• not accelerating

• not moving

• speeding up

• slowing down

A drag racer accelerated from 0 m/s to 200 m/s in 5 s.  What was the acceleration?

• 0 m/s
• 40 m/s²
• -40 m/s²
• 40 m/s

Tags

NGSS.MS-PS2-2