6.8C Average Speed

Which two measurements are needed in order to calculate the speed of an object in motion?

• distance and time

• time and mass

• force and distance

• volume and time

It takes Mrs. Shields 13 hours to drive from Houston to her hometown of St. Louis, which is a distance of 780 miles. What is the average speed of this trip?

A block is pulled 1.8 m to the right in 5 s. What is the block's average speed to the nearest hundredth of a m/s? DO NOT FORGET TO INCLUDE UNITS!

A student throws a football three times. Another student records the distance, the amount of time the ball travels and the average speed in the table above. How many seconds did it take for the ball to travel 40 m during the third throw?

• 0.5 s

• 1.0 s

• 1.5 s

• 2.0 s

Tags

NGSS.MS-PS3-1

A bus travels 20 km in 30 minutes. What is the average speed of the bus?

• 20 km/h

• 30 km/h

• 40 km/h

• 50 km/h

Which of the following is a UNIT for speed?

• m/s²

• m/s

• d/t

A golf ball is hit a distance of 400 yards in 20 seconds. What is the speed of the golf ball?

Tags

NGSS.MS-PS3-1

A car drives with a constant speed of 80 miles per hour. How far can it travel in 180 minutes?

• 0.44 miles

• 240 miles

• 100 miles

• 80 miles

What is the formula for calculating TIME?

• distance/time

• distance/speed

• speed x time

• speed/time

What is the formula for calculating DISTANCE?

• distance/time

• distance/speed

• speed x time

• speed/time