Measurement of Time and Motion
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Measurement of Time
SubtopicMeasurement of Time under Measurement of Time and Motion for Grade 7 CBSE.
Preview questions (no answers)
- 1.
Which type of clock provides the most accurate measurement of time?
A.Sundial
B.Pendulum clock
C.Atomic clock
D.Sand clock
- 2.
Before the invention of modern clocks, people used which of the following to tell time?
A.Position of stars
B.Length of shadows
C.Flow of water
D.All of the above
- 3.
The standard symbol for the unit 'minute' is:
A.m
B.min
C.mt
D.mi
- 4.
Which of the following is true for a simple pendulum?
A.It moves in a straight line
B.It repeats its motion
C.It never stops
D.It has no bob
- 5.
In a -hour clock system, PM is expressed as:
A.hours
B.hours
C.hours
D.hours
- 6.
Which of the following will decrease the time period of a simple pendulum?
A.Increasing the length of the string
B.Decreasing the length of the string
C.Increasing the mass of the bob
D.Increasing the amplitude
- 7.
The basic unit of speed is . What are the basic units of distance and time used to derive this?
A.Kilometer and Hour
B.Meter and Second
C.Centimeter and Minute
D.Meter and Minute
- 8.
Which of the following describes the 'restoring force' in a simple pendulum that causes it to return to its mean position?
A.Magnetic force
B.Frictional force of air
C.A component of the force of gravity
D.Tension in the string only
- 9.
A heartbeat of a healthy adult at rest is approximately times per minute. What is the 'time period' of one heartbeat?
A.0.83 seconds
B.1.2 seconds
C.0.72 seconds
D.1.38 seconds
- 10.
What is the angular displacement of the minute hand of a clock in minutes?
A.B.C.D.
Download the worksheet for Measurement of Time and Motion - Measurement of Time to practice offline. It includes additional chapter-level practice questions.
A simple pendulum
SubtopicA simple pendulum under Measurement of Time and Motion for Grade 7 CBSE.
Preview questions (no answers)
- 1.
A pendulum bob is usually made of which material?
A.Wood
B.Metal
C.Plastic
D.Paper
- 2.
The string used in a simple pendulum should be ________.
A.Elastic
B.Inextensible (doesn't stretch)
C.Very thick
D.Very heavy
- 3.
If a pendulum has a time period of 1 second, how many oscillations does it make in 1 minute?
A.1
B.30
C.60
D.120
- 4.
Which of the following is the most suitable for measuring the time of a 100m race?
A.Sundial
B.Sand clock
C.Stopwatch
D.Pendulum clock
- 5.
If a simple pendulum is taken into a vacuum (no air), it will:
A.Stop immediately
B.Oscillate for a much longer time
C.Not oscillate at all
D.Have a shorter time period
- 6.
In a laboratory, we use a stopwatch to measure the time period because:
A.It can measure time more precisely than a wall clock
B.It is easier to carry
C.It is cheaper
D.It has a pendulum inside
- 7.
What is the frequency of a pendulum that completes 10 oscillations in 5 seconds?
A.Hz
B.Hz
C.Hz
D.Hz
- 8.
The motion of a simple pendulum is an example of:
A.Periodic motion only
B.Oscillatory motion only
C.Both Periodic and Oscillatory motion
D.Rectilinear motion
- 9.
What happens to the kinetic energy of the pendulum bob when it reaches the extreme position?
A.It becomes maximum
B.It becomes zero
C.It remains constant
D.It is converted into heat
- 10.
The time period of a pendulum is . If the number of oscillations is doubled, the time period will be:
A.B.C.D.
Download the worksheet for Measurement of Time and Motion - A simple pendulum to practice offline. It includes additional chapter-level practice questions.
SI unit of time
SubtopicSI unit of time under Measurement of Time and Motion for Grade 7 CBSE.
Preview questions (no answers)
- 1.
Which of these is used to measure the pulse rate (beats per minute)?
A.Speedometer
B.Watch
C.Odometer
D.Thermometer
- 2.
Digital clocks show time in:
A.Roman numerals
B.Shadows
C.Digits/Numbers
D.Sands
- 3.
The time period of a simple pendulum is constant if its:
A.Bob color is same
B.Length is constant
C.Bob is made of wood
D.String is thin
- 4.
One millennium consists of:
A.10 years
B.100 years
C.1000 years
D.10,000 years
- 5.
How many minutes are there in hours?
A.1 minute
B.6 minutes
C.10 minutes
D.60 minutes
- 6.
A student says the speed of a car is . What is this speed in SI units ()?
A.250 m/s
B.15 m/s
C.900 m/s
D.150 m/s
- 7.
Which of the following is used to measure time intervals in sports like swimming or sprinting?
A.Wall clock
B.Wrist watch
C.Stopwatch
D.Sundial
- 8.
An automated industrial robot completes a three-phase task cycle as described in the flowchart below. To fulfill a specific order, the robot must repeat this entire cycle exactly times. What is the total time taken to complete the order, expressed in the standard SI unit of time?
A.B.C.D. - 9.
In a distance-time graph for non-uniform motion, what does the slope of a tangent at a specific point represent?
A.Instantaneous Speed
B.Average Speed
C.Total Distance
D.Acceleration
- 10.
A 'Jiffy' is an informal unit of time used in physics, often defined as the time light takes to travel . Calculate its value in SI units approximately.
A.B.C.D.
Download the worksheet for Measurement of Time and Motion - SI unit of time to practice offline. It includes additional chapter-level practice questions.
Slow or Fast
SubtopicSlow or Fast under Measurement of Time and Motion for Grade 7 CBSE.
Preview questions (no answers)
- 1.
If we represent motion on a graph, the steepness of the line indicates:
A.Weight
B.Speed
C.Time
D.Distance
- 2.
A turtle moves meters in seconds. Its speed is:
A.B.C.D. - 3.
A train covers km in hours. Its speed is:
A.B.C.D. - 4.
Which unit would you use to measure the speed of a snail?
A.B.C.D. - 5.
If a car is at rest, its distance-time graph will be:
A.A vertical line
B.A horizontal line at some distance from X-axis
C.A line inclined at 45 degrees
D.A curved line
- 6.
To find the average speed of a vehicle during a journey, we divide:
A.Total distance by total time
B.Total time by total distance
C.Final speed by initial speed
D.Distance by square of time
- 7.
The motion of a bus on a crowded city road is an example of:
A.Uniform motion
B.Non-uniform motion
C.Periodic motion
D.Circular motion
- 8.
A tortoise moves at a speed of . How much distance will it cover in ?
A.360 m
B.100 m
C.3.6 km
D.60 m
- 9.
A car is moving at and car is moving at . Car is:
A.Faster than car B
B.Slower than car B
C.Moving at the same speed as car B
D.Moving at half the speed of car B
- 10.
If the time period of a simple pendulum is doubled, its frequency becomes:
A.Doubled
B.Half
C.Four times
D.One-fourth
Download the worksheet for Measurement of Time and Motion - Slow or Fast to practice offline. It includes additional chapter-level practice questions.
Preview questions (no answers)
- 1.
Which of these is the most modern and accurate time-keeping device?
A.Sand clock
B.Sundial
C.Atomic clock
D.Water clock
- 2.
If a cyclist travels km in hours, what is the average speed?
A.B.C.D. - 3.
How many hours are there in one day?
A.B.C.D. - 4.
If the distance-time graph of a car is a curved line, the car is in:
A.Uniform motion
B.Non-uniform motion
C.Rest
D.Reverse motion
- 5.
A toy car moves along a track in two segments as shown in the diagram. What is the average speed of the car for its entire journey from the Start to the Finish?
A.m/s
B.m/s
C.m/s
D.m/s
- 6.
In the diagram of a simple pendulum, the time taken by the bob to move from the extreme position A to the mean position O is seconds. What is the time period of this pendulum?
A.seconds
B.seconds
C.seconds
D.seconds
- 7.
Two vehicles are traveling at different speeds as shown in the diagram. Which of the following statements is correct regarding their motion?
A.Vehicle 1 is traveling faster than Vehicle 2
B.Vehicle 2 is traveling faster than Vehicle 1
C.Both vehicles are traveling at the same speed
D.Vehicle 2 is exactly twice as fast as Vehicle 1
- 8.
If the time period of a pendulum is increased by , the number of oscillations in a fixed time will:
A.Increase
B.Decrease
C.Remain the same
D.Double
- 9.
Which of the following is correct for non-uniform speed?
A.The distance-time graph is a straight line
B.The object covers equal distances in equal time intervals
C.The speed of the object changes with time
D.The object remains at rest
- 10.
A car is moving with a speed of . In seconds, it will cover a distance of:
A.B.C.D.
Download the worksheet for Measurement of Time and Motion - Speed to practice offline. It includes additional chapter-level practice questions.
Relationship between speed, distance, and time
SubtopicRelationship between speed, distance, and time under Measurement of Time and Motion for Grade 7 CBSE.
Preview questions (no answers)
- 1.
Which of the following describes non-uniform motion?
A.Constant speed along a straight line
B.Changing speed along a straight line
C.Object at rest
D.Fixed distance in fixed time
- 2.
The time between one sunrise and the next is called a:
A.Month
B.Year
C.Day
D.Hour
- 3.
Motion of a ball rolling on the ground is an example of:
A.Periodic motion
B.Rectilinear motion
C.Oscillatory motion
D.Vibratory motion
- 4.
What is the time period if a pendulum makes oscillations in seconds?
A.B.C.D. - 5.
If an object is moving along a straight line with a constant speed, its motion is called:
A.Non-uniform motion
B.Circular motion
C.Uniform motion
D.Periodic motion
- 6.
A bird flies at . How much time will it take to fly ?
A.B.C.D. - 7.
An ancient device used for measuring time based on the position of the shadow is:
A.Water clock
B.Sand clock
C.Sundial
D.Pendulum
- 8.
A toy robot moves along a straight track in four consecutive stages as described in the flowchart below. Based on the information provided, what is the average speed of the robot for the entire journey from start to finish?
A.B.C.D. - 9.
A simple pendulum takes to complete . If the number of oscillations is doubled for the same pendulum, the time period will:
A.Be doubled
B.Be halved
C.Remain the same
D.Be quadrupled
- 10.
A car covers in . What is its speed in ?
A.B.C.D.
Download the worksheet for Measurement of Time and Motion - Relationship between speed, distance, and time to practice offline. It includes additional chapter-level practice questions.
Uniform and Non-uniform Linear Motion
SubtopicUniform and Non-uniform Linear Motion under Measurement of Time and Motion for Grade 7 CBSE.
Preview questions (no answers)
- 1.
If you are traveling in a car that covers km every minutes, the car is in:
A.Uniform motion
B.Non-uniform motion
C.Rest
D.Circular motion
- 2.
Which of the following is a non-periodic motion?
A.Heartbeat
B.Motion of a pendulum
C.Bouncing of a ball on a bumpy road
D.Rotation of the earth
- 3.
A stopwatch is used to measure:
A.Specific time of the day
B.Intervals of time
C.Speed of an object
D.Distance of an object
- 4.
When we say the speed of a car is , it usually refers to its:
A.Instantaneous speed
B.Average speed
C.Minimum speed
D.Maximum speed
- 5.
The diagram shows the distance covered by two cars, A and B, at different time intervals. Based on the data provided, which statement correctly describes their motion?
A.Both Car A and Car B are in uniform motion.
B.Car A is in non-uniform motion, while Car B is in uniform motion.
C.Car A is in uniform motion, while Car B is in non-uniform motion.
D.Both Car A and Car B are in non-uniform motion.
- 6.
A car starts from rest and covers m in the first seconds, m in the next seconds, and m in the final seconds. What is the average speed?
A.10 m/s
B.60 m/s
C.30 m/s
D.20 m/s
- 7.
The time period of a simple pendulum is s. How many oscillations will it complete in seconds?
A.5
B.10
C.15
D.20
- 8.
A vehicle's journey is divided into two segments of equal time duration. During the first segment, it travels at a constant speed of . During the second segment, it travels at a constant speed of . Based on the provided diagram and data, calculate the average speed for the entire journey in and identify the type of motion.
A., Non-uniform motion
B., Uniform motion
C., Non-uniform motion
D., Non-uniform motion
- 9.
What is the slope of a distance-time graph for an object that is not moving?
A.0
B.1
C.Infinite
D.90 degrees
- 10.
If a car covers in first , in next and in last , the motion is:
A.Non-uniform
B.Uniform
C.Stationary
D.Periodic
Download the worksheet for Measurement of Time and Motion - Uniform and Non-uniform Linear Motion to practice offline. It includes additional chapter-level practice questions.