Motion Speed and Displacement

What is the formula to calculate speed?

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

Tags

NGSS.MS-PS3-1

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

NGSS.MS-PS3-1

Which of the following represents a velocity?

• 40 m
• 40 m north
• 40 m/s
• 40 m/s north

Two horses are running in a field.  The gray horse runs 12 m/s north.  The black horse runs 12 m/s east.  
Which is true about their motions?

• Equal speeds.
• Equal velocities.
• Equal distances.
• Equal displacements.

Which statement is true about velocity?

• Must have measurement of speed.

• Must have a measurement of speed and direction.

• Must have only direction.

• Has neither a measurement of speed or direction.

How do you calculate velocity?

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

Tags

NGSS.MS-PS3-1

How do you calculate distance?

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

A car moves a distance of 1000 m with an average speed of 28 m/s.   Calculate the time.

• 36 seconds
• 28,000 seconds
• 28 seconds
• 972 seconds

Tags

NGSS.MS-PS3-1

A cheetah runs with an average speed of 32 m/s for 30 seconds.  How far did the cheetah run?

• 960 m
• 1.07 m
• 0.94 m
• 62 m

Stickdude traveled from A through B, C and D back to A. What was his total distance traveled?

• 16 m

• 8 m

• 0 m

• 32 m