Speed, Velocity and Acceleration

1. Which of the following statements about speed and velocity is correct?

• Velocity only describes an object’s rate of motion.
• Speed describes how an object is changing its velocity.
• Speed and velocity both describe how an object is speeding up.
• Only velocity includes the direction an object is traveling.

Acceleration describes how an object’s velocity is changing.  Which of the following scenarios provides the best example of an accelerating object?

• A car driving at a constant speed
• A book sitting on top of a high shelf
• A toy train traveling in a circle
• A toy boat floating in a bathtub

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 gees fly 23 mph to the south when they migrate for the winter. 

• speed
• velocity
• acceleration

Tags

NGSS.MS-PS3-1

The Olympian swam 200 meters in 20 seconds. 

• speed
• velocity
• acceleration

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Avery likes to walk 30 feet in 10 seconds. What is her speed?

• 3 feet/sec
• 6 feet/sec
• 10 feet/sec
• 2 feet/sec

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

What is velocity?

• the quickness of an object
• the location of an object
• acceleration
• speed in a specific direction

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CCSS.HSN.VM.A.1

What is the formula to calculate speed?

• S = t/d
• S = d/t
• S = d x t
• S = t x d

Tags

CCSS.6.EE.B.7

Acceleration of an object happens when things ________

• slow down
• go faster
• change direction (turn)
• All of the above

Tags

NGSS.MS-PS2-2

In the distance vs. time graph, what type of motion does the line represent? 

• Speed
• Velocity
• Acceleration
• Deceleration

Tags

CCSS.HSF.IF.B.4