Calculating Speed

What is the formula to calculate speed?

• Speed = Time ÷ Distance

• Speed = Distance ÷ Time

• Speed = Distance x Time

• Speed = Time x Distance

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 meters per second

• 1000 meters per second

• 100 seconds per meter

• 10 seconds per meter

Alan travels 100 km in 5hrs. Find his average speed in km/h

• 5 kilometers per hour

• 10 kilometers per hour

• 50 kilometers per hour

• 20 kilometers per hour

Marni runs 1,500 meters around the school track. What does she need to know in order to find out her speed?

• her time from start to finish

• the number of steps she took

• her heart rate at the finish line

• the direction she began running

What is a falcon's speed if it travels a distance of 142 km in 2 hours?

• 71 kilometers per hour

• 52 kilometers per hour

• 17 kilometers per hour

• 90 kilometers per hour

Tags

NGSS.MS-PS3-1

A worm traveled 50 centimeters in 5 minutes. What is the average speed of the snail?

• 10 centimeters per minute

• 25 centimeters per minute

• 250 centimeters per minute

• 1 centimeters per minute

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 per second

• 6 seconds per meter

• .17 meters per second

• None of the above

Reese can run 10 meters in 5 seconds. What is her speed?

• 5 meters per second

• 2 meters per second

• 5 miles per hour

• 2 miles per hour

Soccer ball A travels 15 feet in 3 seconds, and Ball B travels 12 feet in 2 seconds. Determine the speed of each ball to find out which one had the fastest speed.

• Soccer Ball A

• Soccer Ball B

• Their speeds are equal.

BONUS: Mr. Rudman drives his race car at a speed of 300 miles per hour. What distance and time could have been used to find his speed?

• 300 miles in 2 hours

• 60 miles in 20 hours

• 30 miles in 20 hours

• 600 miles in 2 hours