Practicing Class 7 Science MCQ and Class 7 Science Chapter 8 Measurement of Time and Motion MCQ Questions Online Test with Answers daily helps in time management.
Class 7 Measurement of Time and Motion MCQ with Answers
MCQ on Measurement of Time and Motion Class 7
Class 7 Science Chapter 8 Measurement of Time and Motion MCQ Questions with Answers
Question 1.
A bus travels 54 km in 90 minutes. The speed of the bus is (NCERT Exemplar)
(a) 0.6 m/s
(b) 10 m/s
(c) 5.4 m/s
(d) 3.6 m/s
Answer:
(b) 10 m/s
Question 2.
If we denote speed by S, distance by D and time by T, the relationship between these quantities is (NCERT Exemplar)
(a) S = DT
(b) T = \(\frac{S}{D}\)
(c) S = \(\frac{1}{t}\) × D
(d) S = \(\frac{T}{D}\)
Answer:
(c) S = \(\frac{1}{t}\) × D
Question 3.
Observe the figure given below:
The time period of a simple pendulum is the time taken by it to travel from (NCERT Exemplar)
(a) A to B and back to A
(b) O to A, A to B and B to A
(c) B to A, A to B and B to O
(d) A to B
Answer:
(a) A to B and back to A
Question 4.
Nearly all the clocks make use of (NCERT Exemplar)
(a) straight line motion
(b) periodic motion
(c) random motion
(d) circular motion
Answer:
(b) periodic motion
Question 5.
A simple pendulum takes 42 sec. to complete 20 oscillations. What is its time period?
(a) 2.1s
(b) 4.2 s
(c) 21 s
(d) 8.40 s
Answer:
(a) 2.1s
Question 6.
Time period of a simple pendulum depends upon its
(a) weight of bob
(b) length
(c) both (a) and (b)
(d) none of these
Answer:
(b) length
Question 7.
The correct symbol to represent the speed of an object is: (NCERT Exemplar)
(a) 5 m/s
(b) 5 ms
(c) 5 m/s-1
(d) 5 s/m
Answer:
(a) 5 m/s
Question 8.
Which of the following cannot be used for measurement of time? (NCERT Exemplar)
(a) A leaking tap
(b) Simple pendulum
(c) Shadow of an object during the day
(d) Blinking of eyes
Answer:
(d) Blinking of eyes
Question 9.
Ajay walks to his school which is at a distance of 3 km from his home in 30 minutes. On reaching he finds that the school is closed and comes back by a bicycle with his friend and reaches home in 20 minutes. His average speed in km/h is (NCERT Exemplar)
(a) 8.3
(b) 7.2
(c) 5
(d) 3.6
Answer:
(b) 7.2
Measurement of Time and Motion Class 7 Assertion-Reason Type Questions
Assertion-Reason Questions Directions: Each of the questions (i) and (ii) contain two statements – first ‘Assertion’ and second ‘Reason’. Select the correct answer to these questions from the codes (a), (b), (c) or (d) as given below:
(a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
(b) Both Assertion and Reason are true and Reason is NOT the correct explanation of Assertion.
(c) Assertion is true and Reason is false.
(d) Assertion is false and Reason is true.
(i) Assertion (A): The time taken by a simple pendulum to complete one oscillation is called its time period.
Reason (R): The time period of a pendulum depends on the mass of the bob.
Answer:
(c) Assertion is true and Reason is false.
(ii) Assertion (A): An object
moving equal distances in equal intervals of time has a uniform speed.
Reason (R):-An object moving unequal distances in unequal intervals of time has a uniform speed.
Answer:
(c) Assertion is true and Reason is false.
Measurement of Time and Motion Class 7 Fill in the blanks
1. The distance covered by an object in a _______ is called its speed.
Answer:
unit time
2. Time between one sunrise and the next sunrise is called a _______.
Answer:
day
3. In a simple pendulum, the metallic ball suspended by thread is called its _______.
Answer:
bob
4. Time period of a pendulum depends on its _______.
Answer:
length
5. The symbols of all units of time are written in _______.
Answer:
lowercase letter
6. A _______ is one billionth of a second.
Answer:
nanosecond
Measurement of Time and Motion Class 7 True or False
Question 1.
Faster vehicle has a higher speed.
Answer:
True
Question 2.
All the clocks make use of some periodic motion.
Answer:
True
Question 3.
The SI unit of speed is km/h.
Answer:
False
Question 4.
The symbols of all units are written in singular.
Answer:
True
Question 5.
The SI unit of time is second.
Answer:
True
Question 6.
Age of a person is expressed in days.
Answer:
False
Question 7.
Periodic events are used for the measurement of time.
Answer:
True
Measurement of Time and Motion Class 7 Match the following
Question 1.
Match the following items given in Column A with those in Column B:
| Column A | Column B |
| (a) Years | (i) Rotation period of earth on its axis |
| (b) Hour | (ii) Time to complete 100 m race |
| (c) Minute | (iii) Gestation period in humans |
| (d) Days | (iv) Age of a person |
| (e) Second | (v) Time to reach your school |
| (f) Month | (vi) Train reaches from one city to other |
Answer:
| Column A | Column B |
| (a) Years | (iv) Age of a person |
| (b) Hour | (vi) Train reaches from one city to other |
| (c) Minute | (v) Time to reach your school |
| (d) Days | (i) Rotation period of earth on its axis |
| (e) Second | (ii) Time to complete 100 m race |
| (f) Month | (iii) Gestation period in humans |