WorksheetsTime & Motion Class 7 by Neha Talwar
Total questions: 12
Worksheet time: 10mins
Name the time measuring devices used in earlier time
Stop Watch & Pendulum Clock
Atomic Clock & Quartz watches
Sundial & Water Clock
Time Period of a Pendulum depends on
Weight of bob & length of pendulum
Length of Pendulum & Acceleration due to gravity
Amplitude of an Oscillation
If 20 oscillations are covered in 10 seconds , what is its time period
2 secs
1 Secs
1/2 Secs
01 Solar Day has how many seconds
86,400 Secs
3600 Secs
52,900 Secs
Time calculation in CD - ROM is done by
Microsecond
Nanosecond
Millisecond
A train covers 360km in 6 hours . What is the speed of the train
120km/hr
60km/hr
45km/hr
Average Speed covered by a body is equal to ratio of
Instant distance travelled to instant time
Average Distance Travelled to Average Time Taken
Total Distance Travelled to Total Time taken
In a Distance - Time Graph, if the Graph shows line parallel to x axis, what type of motion does a body has
Uniform Motion
Non- Uniform Motion
Body is at rest
Unit of Frequency is
Pascal
Hertz
Newton
Dutch Scientist who invented a Pendulum Clock was
Galileo Galilei in 1602
Christiaan Huygens 1656
Louis Essen and Jack Parry in 1955
Amplitude defines distance travelled between
Mean Position to extreme position & back to mean position
Maximum displacement from mean position to either side
Total time taken to complete one oscillation
One Billionth of a second is called
Millisecond
Microsecond
Nanosecond
