Speed 10/25/2018

What is the formula to calculate speed?

• S = t/d

• S = d/t

• S = d x t

• S = t x d

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

What is the speed of a man who runs 10 miles in 1 hr?

• 20 miles

• 10 m/min

• 10 miles/hr

• 20 hrs

Tyreese sprinted down the hallway for a science project. He ran a total of 40 meters in 20 seconds. What was his average speed?

• 2 meters per second

• 20 meters per second

• 40 meters per second

• 10 meters for second

If a toy car rolls down a ramp in 3 seconds, and the ramp is 21 cm long, what will be the average speed?

• 7 cm/s

• 5 cm/s

• 3 cm/s

• 4 cm/s

Which of the following is a unit of distance ?

• miles/hr

• hr

• km

• min

Which of the following is a unit of time?

• km/hr

• hr

• km

• mi

A runners 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 unusually fast zombie was chasing after Carl to eat him. What was the zombie’s speed at 6 seconds if he traveled 36 meters?

• 6 meters/seconds

• 6 seconds/meters

• .17 meters/second

• None of the above

What is the speed of an object that travels 20 meters in 4 seconds?

• 80 m/s

• 0.2 m/s

• 5 m/s

• 24 m/s