1. Mrs. Cavanaugh set a record by running 200m in 21.34s. What was her average speed? 2. What is the speed of a truck that travels 12 kilometers in 15 minutes?
13.33 m/s
3. A sprinter runs 100m in 10 seconds. Find the speed of the runner.
100/10 is 10 m/s
4. Sound travels at a speed of 330 meters per second. How long does it take for the sound of thunder to travel 30 meters?
5. Sound travels at a speed of 330m/s. If a lightning bolt strikes the ground 10km away from you, how long will it take for the sound to reach you?
6. A cyclist leaves home and rides east for a distance of 45km. She returns home on the same bike path and the entire trip takes 4 hours. What was the average speed of her trip?
7.A cyclist must travel 800 kilometers. How many hours will the trip take if the cyclist travels at an average speed of 16km/hr?
8. A wooden 64 cm3 block has a density of 0.20 g/cm3. What is its mass?
9.Find the density of butter if 272g occupies 312cm3.
10.Find the density of balsa wood if 171g occupies 4.65cm3.