Updated by Tiwari Academy
on June 13, 2023, 11:10 AM
on June 13, 2023, 11:10 AM
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
Which of the following statement is or are incorrect?
[A]. The movement of an objects is called stationary-motion.
[B]. The movement or duration in which things occurs is called time.
[C]. An object is said to be in motion or moving when its positions changes with time.
[D]. When the position of car changes with, we say that car is moving or that the car is in motion.
Q3
Payel is completed her science chapter where she wrote some statements. She wants to know whether the statements are correct or not? Payel wants to take help from you:
[A]. When an object moves along a straight-line path, it is called rectilinear motion.
[B]. When an object moves along a circular path, it is called circular motion.
[C]. When an object turns or spins about a fixed axis, it is called rotational motion.
[D]. The motion which repeats itself after regular intervals of time, is called oscillatory motion.
Q4
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
Q5
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
Q6
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
Q7
Which of the following statement is or are incorrect?
[A]. An object moving along a straight-line path is said to have uniform motion if its speed remains constant.
[B]. An object moves moving along a straight-line path is said to have non uniform motion if its speed keeps changing.
[C]. The non-uniform motion (in which the speed of an object keeps changing) is also called accelerated motion.
[D]. None of the above
Q8
Consider the following statements and choose the incorrect one:
[A]. The distance time graph of an object moving with a uniform speed or constant speed is a straight line.
[B]. The Slope of a distance-time graph indicates the speed of the object.
[C]. The distance time graph for an object moving with non-uniform speed is a curved line.
[D]. When the distance travelled is measured in kilometers and the time taken is measured in hours then the speed will come in the unit of meter per hour.
Q9
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
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
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
Q13
The instrument installed in a car for measuring the distance travelled by the car is called.
[A]. Barometer
[B]. Speedometer
[C]. Anemometer
[D]. Odometer
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
Q17
Which of the following could not be a unit of speed?
[A]. km/h
[B]. s/m
[C]. m/s
[D]. mm/s
Q18
The regular vibration of which of the following electrically driven crystals are used for measuring time very accurately.
[A]. Calcite crystals
[B]. Quadric crystals
[C]. Chrome crystals
[D]. Quartz crystals
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
Which among the following is the smallest unit of time?
[A]. Second
[B]. Millisecond
[C]. Nanosecond
[D]. Microsecond
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 train “A” travelled a distance of 150 km in 3 hours whereas another train “B” travelled a distance of 180 km in 4 hours. Which train travelled faster?
[A]. Train A
[B]. Train B
[C]. Both have same speed
[D]. Not to be calculated
Q23
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
Q24
Which of the following should be drawn to show the variation of the weight of a man with age?
[A]. Bar graph
[B]. Pie chart
[C]. Line graph
[D]. Histogram
Q25
A man riding a scooter travels a distance of 70 meters in 20 seconds. What is the speed of the scooter?
[A]. 2.5 m/s
[B]. 3.5 m/s
[C]. 4.5 m/s
[D]. 50 m/s
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Last Edited: June 13, 2023
