Class 7 Science Worksheet: Motion and Time

Description

A five-page Class 7 Science set on motion and time. Page one has fifteen multiple choice questions on what motion means, rest, which moves faster, sundials, water clocks, sand clocks, pendulum clocks, quartz clocks, atomic clocks, who built the first pendulum clock and who solved the problem of finding longitude at sea, with the answer printed under each question.

The last page has six competency based questions with full answers: choosing between a bicycle at six kilometres an hour and a car at forty, a sundial on a cloudy day, comparing a sundial with a quartz clock, calculating speed from a table of distances, atomic clocks in GPS, and speed in sports and transport.

Every page carries its own answer key, so a parent or tutor can correct the sheet in a few minutes.