Speed, Velocity, Distance and Displacement

Velocity is 

• speed

• direction

• speed with a direction

Speed is equal to 

• Distance/Time

• Time/Distance

• Time x Distance

• Acceleration

Tags

NGSS.MS-PS3-1

A horse follows a dangling carrot for 20 m, if it took her 5 seconds to reach it, what was her average speed?

• 1,000 m/s

• 2.5 m/s

• 4 m/s

• 20 m/s

Which of the following has INCORRECT units?

• speed = m/s

• time = s

• displacement = m

• velocity = s

Tags

NGSS.MS-PS3-1

Which is a vector?

• Displacement

• Distance

• Speed

What is a difference between distance and displacement

• Distance is measured in seconds and displacement is measured in meters

• Distance is always shorter than displacement

• Displacement can be equal to zero if the object ends in the place it began in

What describes a vector best?

• Magnitude

• Magnitude and unit

• Magnitude, unit, and direction

• Direction

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

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 displacements.

______ is the difference between the initial (first) position and the final position of an object.

• Distance

• Speed

• Displacement

• Motion