By tackling these Class 7 Science MCQ and Measurement of Time and Motion Class 7 Science Curiosity Chapter 8 MCQ Online Test with Answers, students will build a solid foundation in the topic.
Class 7 Science Chapter 8 Measurement of Time and Motion MCQ
Measurement of Time and Motion MCQ
Class 7 Science Chapter 8 MCQ Online Test
Question 1.
Where is the world’s largest sundial is situated?
(a) Delhi
(b) Agra
(c) Jaipur
(d) Kolkata
Answer:
(c) Jaipur
Question 2.
What was the base of time keeping in the water clocks?
(a) Change in shadow
(b) Flow of water
(c) Flow of sand
(d) Melting of wax
Answer:
(b) Flow of water
Question 3.
Which clock was invented in 1656?
(a) Quartz clock
(b) Atom clock
(c) Pendulum clock
(d) Sand-clock (Hourglass)
Answer:
(c) Pendulum clock
Question 4.
What have the impact on time period of pendulum?
(a) Mass of bob
(b) Length of rope
(c) Both (a) and (b)
(d) None
Answer:
(b) Length of rope
Question 5.
What is the SI unit of time?
(a) Minute
(b) Hour
(c) Second
(d) Day
Answer:
(c) Second
Question 6.
Whose example is swing?
(a) Sundial
(b) Simple pendulum
(c) Non-uniform motion
(d) None of the above
Answer:
(b) Simple pendulum
Question 7.
What is the formula of average speed?
(a) Distance x time
(b) Total distance H- Total time
(c) Time -f Distance
(d) Sum of speeds H- Number of speeds
Answer:
(b) Total distance H- Total time
Question 8.
Moving in a same distance in same time by an object is called :
(a) Non-uniform motion
(b) Non-uniform speed
(c) Uniform motion
(d) None of the above
Answer:
(c) Uniform motion
Question 9.
Train travels 180 km in 3 hours. Its speed is :
(a) 30 km/h
(b) 40 km/h
(c) 50 km/h
(d) 60 km/h
Answer:
(d) 60 km/h
Question 10.
By what the minimum time is measured in races?
(a) Pendulum clock
(b) Quartz clock
(c) Atom clock
(d) Stop-watch
Answer:
(c) Atom clock
Question 11.
What is measured by speedometer?
(a) Distance
(b) Speed
(c) Time
(d) Velocity
Answer:
(b) Speed
Question 12.
What is measured by odometer?
(a) Distance
(b) Speed
(c) Time
(d) Energy
Answer:
(a) Distance
Question 13.
Example of non-uniform motion is:
(a) Car running on highway
(b) Motion of train
(c) Car in city traffic
(d) Pendulum of clock
Answer:
(c) Car in city traffic
Question 14.
Symbol of average speed is:
(a) m
(b) s
(c) m/s
(d) km
Answer:
(c) m/s
Question 15.
How accurate time an atom clock can measure
(a) Till minute
(b) Till seconds
(c) Till milliseconds
(d) Difference of 1 sec. in lakhs of year
Answer:
(d) Difference of 1 sec. in lakhs of year
Measurement of Time and Motion Class 7 Fill in the blanks
Question 1.
The ‘Samrat yantra’ was built around _____ years ago at the ____ in Jaipur.
Answer:
300, Jantar-mantar
Question 2.
Pendulum clock was invented by _____
Answer:
Christiaan Huygens
Question 3.
Speedometer measures vehicle’s _____
Answer:
speed
Question 4.
An object covers unequal distances in equal intervals of time. It is _____ linear motion.
Answer:
non-uniform
Question 5.
Basis of determination of time in sundial is _____
Answer:
shadow
Question 6.
Average speed = Total distance
Answer:
Total time
Measurement of Time and Motion Class 7 True or False
Question 1.
Time in water clock was based on flow of water. (True/False)
Answer:
True
Question 2.
Time period of pendulum is affected by mass.(True/False)
Answer:
False
Question 3.
1 hour = 3600 seconds. (True/False)
Answer:
True
Question 4.
Symbol of average speed is m/s. (True/False)
Answer:
True
Question 5.
A pendulum never repeats its path. (True/False)
Answer:
False
Measurement of Time and Motion Class 7 Match the following
| Column ‘A’ (Tool) | Column ‘B’ (Base) |
| (i) Sun-dial | (a) Water flow |
| (ii) Water clock | (b) Position of shadow |
| (iii) Sand-clock (Hourglass) | (c) Melting of wax |
| (iv) Candle-clock | (d) Flow of sand |
Answer:
| Column ‘A’ (Tool) | Column ‘B’ (Base) |
| (i) Sun-dial | (b) Position of shadow |
| (ii) Water clock | (a) Water flow |
| (iii) Sand-clock (Hourglass) | (c) Melting of wax |
| (iv) Candle-clock | (d) Flow of sand |
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