Speed, Distance, Displacement, and Acceleration

Acceleration: is the rate of change in ___________.

• speed
• distance
• velocity 
• displacement 

A roller coasters accelerates from an initial speed of 6.0 m/s to a final speed of 70 m/s over 4 seconds. What's the acceleration?

• 24 m/s²

• 18 m/s²

• 16 m/s²

• 16 m/s

Tags

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The SI unit for acceleration is

• mph
• ft/sec²
• m/s²

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  

Velocity is both ____ and _____. 

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

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 the greatest acceleration?

• A
• B
• C
• D

Tags

NGSS.MS-PS3-1

What is speed?

• how far you go
• how much distance is covered over a period of time
• how fast you accelerate
• the change in the location of a object

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

How do you calculate distance?

• Distance divided by time.
• Displacement divided by time.
• Speed multiplied by time.
• Displacement divided by velocity.

What does this graph represent?

• Constant speed
• Acceleration
• Not moving