Acceleration, Force, Newton's Laws

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.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

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

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

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

Which graph shows the object standing still?

• A
• B
• C
• D

A negative acceleration means that your object is _____. 

• Going to Wal-mart 
• running for president 
• speeding up 
• slowing down 

Which shows a distance? 

• 10 m
• 10 m/s
• 10 m/s north 
• 10 m/s squared 

Which shows a velocity? 

• 10 m
• 10 m/s
• 10 m/s north 
• 10 m/s squared 

Acceleration is a change in ________. 

• direction 
• speed 
• velocity 
• distance