Calculating average speed

Match the term on the left with the definition on the right. speed the distance an object travels in a certain time Distance cm, km, or m Time seconds, hours, minutes If a car travels 400m in 20 seconds how fast is it going? 2m 20m 8000m 20mph A cheetah is able to run 40 meters in 1.5 seconds. What is the cheetah's average speed? 60 m 0.04 m 26.7 m I don't have enough information to calculate this. A plane travels 395,000 meters in 9,000 seconds. What was the planes speed? 43.889mph 200 m 43.889m 309m Serina takes 0.25 hours to drive to school. Her route is 16km long. What is Serina's average speed on her drive to school? 0.64 km 0.64 h 640 km 64 km Speed=Distance Watch the video and answer the questions that follow: Speed is the measure of.... the distance an object travels in a certain time. Pause 1:07 Usain Bolt set the record of 9.58s in the 100m . His speed was 10.44m Pause 1:24 A formula 1 car can travel 375km in 1 hour What must be the same in order to figure out which speed is faster? (1:50) Times Colors Units None of the above