Class 7 Science Chapter 9 MCQ (Multiple Choice Questions) of Motion and Time updated for new academic session 2024-25. As all knows that MCQs are now an important part of question papers recommended by CBSE. That is why, we have prepared the MCQ based on all the topic of the chapter 9 of class 7 science. Practice these questions for not only to score good marks but to understand the concepts also.

## Class 7 Science Chapter 9 MCQ for 2024-25

Class: 7 | Science |

Chapter: 13 | Motion and Time |

Contents: | MCQ with answers and Explanation |

### MCQ Tests with Answers for Class 7 Science Chapter 13

Q1

#### Consider the following statements and choose the incorrect one:

[A]. The symbols of all units are written in singular.

[B]. Shadow of an object is shortest at noon.

[C]. Roman used sand clocks to measure time.

[D]. A nanosecond is one-millionth of a second.

Q2

#### A bus travel 54 km in 90 minutes. The speed of the bus is:

[A]. 0.6 m/s

[B]. 10 m/s
[C]

[C]. 5.4 m/s

[D]. 3.6 m/s

Q3

#### In the last year board examination, Rahul were asked a question where he had to choose the statement which was/were correct? Will you be able to answer this question?

[A]. The unit of speed depends upon the unit of distance and the unit of time used.

[B]. The speed of an object can be calculated by dividing the “distance travelled” by the object, by the “time taken” to travel this distance.

[C]. The “distance traveled” divided by “time taken” actually gives us “average speed” of the car during that time.

[D]. All the above

Q4

#### Recently, in a science class test, you are asked a question where you have to say whether the statements are incorrect?

[A]. When the distance travelled is measured in meters and the time taken is measured in seconds then the speed will come in the unit of meters per second.

[B]. When the distance travelled is measured in meters and the time taken is measured in minutes then the speed will come in the unit of meters per minute.

[C]. When the distance is measured in centimeters and the time is measured in seconds then the speed will come in the unit of centimeters per second.

[D]. None of the above

Q5

#### If we denote speed by S, distance by D and time by T, the relationship between these quantities is:

[A]. S = D x T

[B]. T = S/D

[C]. S = 1 x D/ T

[D]. S = T/D

Q6

#### In a science quiz competition, Payel are asked a question where she had to choose the statement which was/were correct?

[A]. If we have to compare the speeds of a number of objects, then we must express the speed of all those objects in the same units.

[B]. An instrument on a vehicle dashboard which indicates the speed of the vehicle when it is running is called speedometer.

[C]. An odometer it is an instrument for measuring the distance travelled by a vehicle.

[D]. All the above

Q7

#### A simple pendulum takes 32 s to complete 20 oscillations. What is the time-period of this pendulum?

[A]. 1.6 s

[B]. 2.6 s

[C]. 3.6 s

[D]. 4.8 s

Q8

#### Bikash is doing his homework which is given by his teacher. Would you help him to choose the correct sentences?

[A]. If the distance time graph of an object is a straight line then it is moving with a constant speed

[B]. If the distance time graph of an object is not a straight line or curved line than the speed of an object is not constant.

[C]. The distance time graph of an object is a horizontal line parallel to the time axis, then the speed of object is zero and the object is not moving.

[D]. All the above

Q9

#### In the last year board examination, Rahul were asked a question where he had to choose the statement which was/were incorrect? Will you be able to answer this question?

[A]. The variation of distance travelled by an object with time can be seen more easily from a distance time graph than table form.

[B]. A bar graph is a diagram which shows information as bars of different heights.

[C]. A pie chart is a kind of graph or diagram which shows the percentage composition of something in the form of slices of a circle.

[D]. None of the above

Q10

#### A sprinter or a fast runner attains a maximum speed of 10 meter per second. What we will be his speed in kilometer per hour?

[A]. 36 km/h

[B]. 46 km/h

[C]. 76 km/h

[D]. 60 km/h

Q11

#### Puja is writing some statements but she confused to know whether the statements are correct or not? If you know the answer to this question, then tell her:

[A]. The principle of periodic motion is used for the measurement of time.

[B]. Clocks and watches which are used for measuring time are based on the principle of periodic motion.

[C]. The to-and-fro motion of a simple pendulum is an example of periodic motion or oscillatory motion.

[D]. All the above

Q12

#### Which of the following cannot be used for the measurement of time?

[A]. A leaking tap

[B]. Simple pendulum

[C]. Shadow of an object during the day

[D]. Blinking of eyes

Q13

#### Falcon is a bird which flies with a maximum speed of 320 km per hour. Calculate its speed in meter per second:

[A]. 118.8 m/s

[B]. 98.8 m/s

[C]. 60 m/s

[D]. None of the above

Q14

#### The composition of air can be best represented by drawing a

[A]. Pie chart

[B]. Bar graph

[C]. Line graph

[D]. Histogram

Q15

#### The measurement of small-time intervals became possible with the development of:

[A]. Sand clock

[B]. Sundial

[C]. Pendulum clock

[D]. Water clock

Q16

#### A car moves with a speed of 40 kilometer per hour for 15 minutes and then with a speed of 60 kilometer per hour for the next 15 minutes. The total distance covered by the car is:

[A]. 100 km

[B]. 50 km

[C]. 25 km

[D]. 200 km

Q18

#### The slope of a distance-time graph of a moving object indicates:

[A]. Distance moved by the object

[B]. Time taken by the object

[C]. Speed of the object

[D]. Positions of the object

Q19

#### Salma takes 15 minutes from her house to reach her school on a bicycle. If the bicycle has a speed of 2 meter per second, calculate the distance between her house and the school.

[A]. 1000 m

[B]. 2000 m

[C]. 1500 m

[D]. 1800 m

Q20

#### A student draws a distance time graph for a moving scooter and finds that a section of the graph is a horizontal line parallel to the time axis. Which of the following conclusion is correct about the section of the graph?

[A]. The scooter has uniform speed in this section

[B]. The distance travelled by scooter is the maximum in the section

[C]. The distance travelled by the scooter is the minimum in the section

[D]. The distance travelled by the scooter is zero in the section

Q21

#### Which of the following is the most appropriate to demonstrate the runs scored in the various overs of a cricket match?

[A]. Time graph

[B]. Bar graph

[C]. Pie chart

[D]. Line graph

Q22

#### The clocks and watches which are used for measuring time are based on:

[A]. Rectilinear motion

[B]. Circular motion

[C]. Periodic motion

[D]. Rotational motion

Q23

#### Which of the following is the most appropriate unit for expressing the speed of a snail?

[A]. km/s

[B]. m/s

[C]. cm/s

[D]. mm/s

Q24

#### When the amplitude of vibration of a simple pendulum is increased, then its time period:

[A]. Decreases

[B]. Increases

[C]. Remains the same

[D]. First increases and then decreases

Q25

#### The distance time graph of a car which comes to a stop after convering a certain distance will be:

[A]. A straight line sloping upwards
[B]
[C]
[D]

[B]. A curved line sloping downwards

[C]. A straight line parallel to time axis

[D]. A straight line parallel to distance axis

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Last Edited: June 13, 2023