8.6B

Acceleration of an object happens when it ________

• slows down
• speeds up
• changes direction
• all of the these

Tags

NGSS.MS-PS2-2

When a car goes around a corner at 20 mph, why do we say it  accelerates?

• The car is accelerating because of the velocity is constant
• The car accelerates because it's going 20 mph
• Cars always accelerate when they are in motion
• The car is accelerating because it's changing direction

The correct equation to calculate speed is

• distance ÷ time
• time/distance
• distance x time
• distance/time²

Which of the following best describes the velocity of an object?

• 100 miles/hour south
• 65 miles
• 20 miles east
• 40 meters per second

Tags

NGSS.MS-PS3-1

What is the difference between the velocity and the speed of an object?

• Velocity is a change in distance over time, speed is the change in direction over time
• Velocity has a direction associated with it, while speed has no specific direction
• Velocity has no direction associated with it, while speed has a specific direction.
• Velocity is the change in speed over time, while speed is the change in distance over time.

What is the speed of a car that travels 400 meters in 20 minutes? (6.8C)

• 20 miles/hr

• 20 m/min

• 800 m/min

• 200 miles/hr

What is this graph showing? (6.8D)

• Constant Speed

• Acceleration (speeding up)

• Deceleration (slowing down)

• No motion

Tags

NGSS.MS-PS3-1

Which of the following is a unit of speed ?

• sec
• mi
• m/s
• min

Tags

CCSS.6.RP.A.3B

What is the speed of this object at 3 seconds?

• 5 m/s
• 45 m/s
• 5 s/m
• 45 s/m

Tags

CCSS.HSF.IF.B.4

Which runner stopped for a rest?

• Albert
• Bob
• Charlie

Tags

NGSS.MS-PS3-1