Exercise II — task. Science CBSE, Class 7.

PDF chapter test TRY NOW

Which of the following are not correct?

The basic unit of time is second
The time period of a given pendulum is constant
Every object moves with a constant speed
The speed of a train is expressed in \(m/h\)
Distances between two cities are measured in kilometres

Login or Fast registration

Previous exercise

Exit to the topic

Did you find an error?

Register for free to see more content

Register for free to see more content