In this page we have Chapter 9 Motion and Time Worksheet for Class 7 Science . Hope you like them and do not forget to like , social share
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Question 1
Fill in the blanks:
The S.I unit of speed is ___________________________
The resting position of a bob of pendulum is called _______________________position.
When a body does not change its position with respect to its surrounding it is said to be at_____________________________________________
Speed of a motor vehicle is measured by an instrument called______________________
Distance travelled by a vehicle is measured by an instrument called__________________
Time taken by a pendulum to complete one oscillation is called_____________________
The metallic ball used in the pendulum is called_________________________________
A diagram showing relationship between two variable a quantities each measured along one of a pair of axes is called____________________________
a substance whose crystals can vibrate very fast and a very precise rate is called
An instrument showing the time by the shadow of a pointer cast by the sun on to a graduated plate is called________________________
Answer
i. meter/sec
ii. mean
iii. rest
iv. speedometer
v. odometer
vi. bob
vii. graph
viii. quartz
ix. Sundial
Question 2 Solves the word problems –
Convert 54 km/hr. into m/s
Calculate Time-period of a simple pendulum if it takes 72 seconds to complete 24 oscillations.
A train is travelling at a speed of 100 km/hr. How long will it take to complete a journey of 500 km without stopping in between.
Ramesh takes 15 minutes to reach market from his house on this cycle. If the speed of his cycle is 4 m/s calculate the distance between his house and market?
Question 3 Across
3. Basic unit of time
5. The to and fro motion of a simple pendulum is called _________ motion
6. the distance per unit time
7. the metallic ball in the simple pendulum Down
1. the instrument used in vehicles for measuring the speed
2. the instrument used in vehicles for measuring the distance
4. One billionth of a second
