Name the two parameters required to know how fast an object is moving.

What kind of watch is used to measure time intervals during sports events?

Name the SI unit of time.

Name the device Huygens actually used to regulate the motion in clocks.

(Choose from: Simple pendulum/Sundial)

Which kinds of motion are executed by a simple pendulum?

Which scientific term is used to distinguish between fast and slow motion?

In which units, the speed of fast moving objects is commonly expressed?