speed and velocity

Distance / Time is used to calculate

(a)  

How long was a car traveling if it went 90 miles at a speed of 45 mi/hr?

• 1 hour

• 2 hours

• 3 hours

• 4 hours

Which of these is NOT a unit of speed?

• 50 km/hr

• 3 miles
• 10 m/s

• 80 mi/hr

Which of the following is an example of Velocity?

• 50 km/h

• 25 mi/hr south

• 5 m/s

How do you calculate speed?

• Distance divided by time.
• Distance x Time

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

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

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

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

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

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