Velocity and Acceleration - Review

Velocity is both ____ and _____. 

• speed , direction 
• direction, mass
• volume, density 
• direction, magnitude 

What is the speed of a car that traveled 56 m in 4 seconds?

• 64 m/s
• 34 m/s
• 14 m/s
• 0.0625 m/s

You walk 10 meters to math class in 20 seconds. Your average speed is

• 2 m/s
• 0.5 m/s
• 200 m/s
• 5 m/s

What is happening to the velocity?

• Constant
• Decreasing
• Increasing
• Zero

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

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

A girl skates around the perimeter of a circular ice rink at a constant speed of 2 m/s. Is the girl accelerating?

• Yes
• No

Which runner had a head start?

• A
• B
• C

Tags

NGSS.MS-PS3-1

What is happening at E?

• Stationary
• Accelerating
• Fast steady speed; moving away from the starting position
• Steady speed; returning to start position

Tags

NGSS.MS-PS3-1

What is happening at A?

• Stationary
• Accelerating
• Slower steady speed; moving away from the starting position
• Steady speed; returning to start position

Tags

NGSS.MS-PS3-1

On a distance-versus-time graph, a straight line ALWAYS indicates that an object’s speed is _____.

• constant
• zero
• increasing
• decreasing