Acceleration

A roller coaster accelerates from an initial speed of 6.0 m/s to a final speed 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.HS-PS2-1

Which of the following is a unit for acceleration?

• km/s
• m/s²
• mi/hr
• ft

Acceleration can be classified as _______________

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

Tags

NGSS.HS-PS2-1

A ball of clay is thrown at a wall at a velocity of 28.0 m/s.  After it hits the wall, it takes 0.020 s to stop.  What is the acceleration of the clay when it hits the wall?

• 1400 m/s²
• -1400 m/s₂
• 0.56 m/s²
• -0.56 m/s²

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A box sliding down an inclined plane attains a velocity of 27 m/s in 3 seconds from rest.  Find the acceleration.

• 30 m/s
• 24 m/s²
• 9 m/s²
• 81 km/hr

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.MS-PS2-2

Which graph represents zero acceleration (constant velocity)?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1

Which graph represents the greatest acceleration?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1

A negative acceleration means that your object is _____. 

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