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What is this graph showing?

• Constant Speed
• Acceleration (speeding up)
• Deceleration (slowing down)
• No motion

Tags

NGSS.MS-PS3-1

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.MS-PS2-1

NGSS.MS-PS2-2

When are you undergoing an acceleration in a car? 

• speed up
• slow down
• make turns
• All of the above 

Tags

NGSS.MS-PS2-2

In each of the following cases, determine where the car has no acceleration ?

• A car shortly after a stoplight turns green.
• A car approaching a red light
• A car with the cruise control set at 80 km/h
• A car turning a curve at a constant speed

Which graph represents zero acceleration (constant velocity)?

• A
• B
• C
• D

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

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  

Which of the following is a unit for acceleration?

• km/s
• m/s²
• mi/hr
• ft

Which section of the graph shows deceleration?

• AB
• BC
• EF
• GH

Tags

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