Speed , Velocity, Accelerations

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.

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

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 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

A runner races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?

• 10 m/s
• 1000 m/s
• 100 seconds
• 10 seconds

Tags

CCSS.6.RP.A.3B

Describe the speed of the rocket in the speed vs. time graph.

• Constant speed
• Decreasing speed
• Increasing speed
• Not moving

Tags

CCSS.HSF.IF.B.4

A child rides a bike around the block.

• Speed
• Velocity
• Acceleration

Tags

NGSS.MS-PS3-1

Describe the speed of the object from 4-6 seconds using the distance vs. time graph.

• Increasing speed
• Decreasing speed
• Not moving
• Constant speed

Tags

CCSS.HSF.IF.B.4

Describe the speed of the object from
0-2 seconds using the distance vs. time graph.

• Constant
• Speeding up
• Slowing down
• Not moving

Tags

NGSS.MS-PS3-1