Speed and velocity

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

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

Total distance divided by total time is

• average speed
• constant speed
• instantaneous speed
• acceleration

Velocity is

• scalar 

• vector 

Which of the following represents a velocity?

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

When you look at the speedometer of your car, it tells you your....

• Average speed
• Instantaneous speed

What is the speed of a cheetah that travels 112.0 m in 4.0 s?

• 0.0357 m/s
• 112 m/s

• 0.036 m/s
• 28.0 m/s

Tags

NGSS.MS-PS3-1

How do you calculate velocity?

• 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