Acceleration Review

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-PS2-2

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.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

Why does a car acceleration change as it round a corner at a constant speed?

• Its direction changes

• It doesn't

• It slows down

• Its speeds up

Which graph shows the object standing still?

• A
• B
• C
• D

Which graph demonstrates the greatest positive speed?

• A
• B
• C
• D

Tags

NGSS.MS-PS3-1

Which graph represents zero acceleration (constant velocity)?

• A
• B
• C
• D

What is the difference between positive and negative acceleration?

• a. Positive acceleration applies to fast objects; negative acceleration applies to slow objects.

• b. Positive acceleration occurs when objects speed up; negative acceleration occurs when objects slow down.

• c. Positive acceleration applies to objects traveling on Earth; negative acceleration applies to objects traveling in space.

• d. Positive acceleration is expressed in meters per second; negative acceleration is expressed in kilometers per hour.

If you are sitting still in a chair reading this, what is your acceleration?

• a. 0 m/s/s

• b. 1 m/s/s

• c. 2 m/s/s

• d. 3 m/s/s