Lesson 8 of 16
Checkpoint: time, pendulums and speed
Show on a big screenFive quick questions. Answer, read the reason, and retry as often as you like.
A pendulum takes 30 s for 10 oscillations. What is its time period?
A cyclist covers 450 m in 90 s. What is the speed?
A speed is 72 km/h. What is it in m/s?
In each of three 5 s periods, a car covers 20 m. What kind of motion is this?
A bus covers 100 km in 2 h. Then it covers 80 km in 2 h. What is its average speed?
0 of 5 answered
Finish the checkpoint to complete this lesson — you can always retry for a better score.