Calculate Acceleration

A roller coasters accelerates from an initial velocity 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

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

Which of the following is a unit for acceleration?

• km/s

• m/s²

• mi/hr

• ft

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.MS-PS2-2

What is the formula for acceleration?

Homer was riding his bike at 250 meters/minute. After being chased by a dog for 2 minutes, he sped up and traveled 300 meters/minute. What was his acceleration?

• 45 meters/minute²

• 25 meters/minute²

• -50 meters/minute²

• 160 meters/minute²

The change in speed or direction something's motion in a single unit of time

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.MS-PS2-1

NGSS.MS-PS2-2

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 

A car speeding up to get on the highway is an example of...

• Speed

• Velocity

• Acceleration

• Direction