Motion and Time
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Slow and Fast Motion
SubtopicSlow and Fast Motion under Motion and Time for Grade 7 CBSE.
Preview questions (no answers)
- 1.
Which of these devices is used to measure the distance moved by a vehicle?
A.Speedometer
B.Odometer
C.Thermometer
D.Barometer
- 2.
A spaceship travels in . This is an example of:
A.Slow motion
B.Very fast motion
C.No motion
D.Backward motion
- 3.
To compare the speeds of two objects, we can compare the distances they cover in:
A.Different times
B.The same time
C.Total time
D.Half the time
- 4.
If an object covers in the first second and in the next second, its motion is:
A.Non-uniform
B.Uniform
C.Fast
D.Slow
- 5.
A bus moves from station A to station B, a distance of , in . It then moves from B to C, a distance of , in . Its motion is:
A.Non-uniform
B.Uniform
C.Periodic
D.At rest
- 6.
If an object is said to have 'slow motion' compared to another object over the same distance, it means:
A.It takes more time
B.It takes less time
C.It covers more distance in less time
D.Its speed is higher
- 7.
Which of the following moves fastest?
A.A car moving at 15 m/s
B.A bike moving at 50 km/h
C.A train moving at 1 km/min
D.A bird flying at 2000 m/min
- 8.
A light signal is sent from a station to a satellite away. If the speed of light is , how long does it take for the signal to reach the satellite?
A.B.C.D. - 9.
Which of the following units represents the smallest speed value?
A.B.C.D. - 10.
A car covers in . If it covers in , what is the ratio of the new speed to the old speed?
A.B.C.D.
Download the worksheet for Motion and Time - Slow and Fast Motion to practice offline. It includes additional chapter-level practice questions.
Measurement of Time and Simple Pendulum
SubtopicMeasurement of Time and Simple Pendulum under Motion and Time for Grade 7 CBSE.
Preview questions (no answers)
- 1.
In a -hour clock, how many times does the hour hand complete a full circle in one day?
A.1 time
B.2 times
C.12 times
D.24 times
- 2.
Which of these represents a very short interval of time?
A.Millisecond
B.Day
C.Month
D.Week
- 3.
A pendulum bob moves from position A to B and back to A. This movement is:
A.Half oscillation
B.One oscillation
C.Two oscillations
D.Quarter oscillation
- 4.
Which part of a quartz clock provides the precise vibrations needed to keep time?
A.The battery
B.The glass cover
C.The quartz crystal
D.The plastic body
- 5.
Which of the following is the most accurate device for measuring short time intervals in a modern physics laboratory?
A.Sand clock
B.Digital stopwatch
C.Water clock
D.Sundial
- 6.
When the bob of a pendulum is at its mean position, its displacement is:
A.Maximum
B.Zero
C.Half of amplitude
D.Constant
- 7.
What is the time period of a 'seconds pendulum'?
A.second
B.seconds
C.seconds
D.seconds
- 8.
A stopwatch records the time for oscillations as seconds. If the error in starting the stopwatch is seconds, what is the maximum error in the calculated time period for a single oscillation?
A.seconds
B.seconds
C.seconds
D.seconds
- 9.
Why do the pendulums used in grandfather clocks usually have a 'bob' that is shaped like a flattened disc rather than a perfect sphere?
A.To reduce air resistance
B.To increase the mass without increasing length
C.To make it easier to see
D.To lower the center of gravity
- 10.
If a pendulum has a time period of seconds, how much time does it take to move from one extreme position to the other extreme position?
A.seconds
B.seconds
C.seconds
D.seconds
Download the worksheet for Motion and Time - Measurement of Time and Simple Pendulum to practice offline. It includes additional chapter-level practice questions.
Units of Time and Speed
SubtopicUnits of Time and Speed under Motion and Time for Grade 7 CBSE.
Preview questions (no answers)
- 1.
How many days are there in a normal (non-leap) year?
A.days
B.days
C.days
D.days
- 2.
Which device is most commonly used today for very accurate time measurement in watches?
A.Sand clock
B.Quartz clock
C.Sundial
D.Water clock
- 3.
If you are traveling at , how far will you travel in hours?
A.B.C.D. - 4.
What is minutes equal to in hours?
A.hours
B.hours
C.hours
D.hours
- 5.
A snail moves at a speed of m/s. How much time will it take to cover meter?
A.10 seconds
B.100 seconds
C.1 second
D.1000 seconds
- 6.
Which scientist is famously associated with the discovery that the time period of a given pendulum is constant?
A.Isaac Newton
B.Galileo Galilei
C.Albert Einstein
D.C.V. Raman
- 7.
If an object covers meters every second for seconds, its motion is described as:
A.Non-uniform
B.Uniform
C.Accelerated
D.Periodic
- 8.
The motion of the bob of a simple pendulum is an example of:
A.Rectilinear motion
B.Periodic motion
C.Circular motion
D.Random motion
- 9.
The basic unit of speed is:
A.km/min
B.m/min
C.km/h
D.m/s
- 10.
Which of these was NOT used as a time-measuring device in ancient times?
A.Sundial
B.Water clock
C.Sand clock
D.Digital clock
Download the worksheet for Motion and Time - Units of Time and Speed to practice offline. It includes additional chapter-level practice questions.
Distance-Time Graphs
SubtopicDistance-Time Graphs under Motion and Time for Grade 7 CBSE.
Preview questions (no answers)
- 1.
What kind of motion is represented by the straight line in the given distance-time graph?
A.Non-uniform motion
B.Object at rest
C.Uniform motion
D.Circular motion
- 2.
A student draws a distance-time graph. The points are (0,0), (1,5), (2,10), (3,15). What is the speed?
A.2
B.5
C.10
D.15
- 3.
Which of the following cannot be shown on a distance-time graph?
A.The speed of the object
B.The position of the object at any time
C.The direction of the object
D.The distance covered at a specific time
- 4.
What is the total distance covered by the object in 4 seconds according to this graph?
A.10 m
B.20 m
C.30 m
D.40 m
- 5.
A distance-time graph for a car shows a curve that gets steeper over time. This indicates:
A.Constant speed
B.Decreasing speed
C.Increasing speed
D.The car has stopped
- 6.
In a distance-time graph, if the line is closer to the time axis, it means the object has:
A.Higher speed
B.Lower speed
C.Zero speed
D.Infinite speed
- 7.
Identify the motion: The graph shows a line segment from (0,0) to (2,4) and then a horizontal line from (2,4) to (5,4).
A.Object moves then accelerates
B.Object moves with uniform speed then stops
C.Object moves with non-uniform speed
D.Object stays at rest then moves
- 8.
Compare the motion of two cars, A and B, using the provided graph. Which car covers more distance in the first 4 hours?
A.Car A
B.Car B
C.Both cover the same distance
D.Cannot be determined from the graph
- 9.
A hiker walks at for 2 hours, rests for 1 hour, and then walks back to the starting point at . Which feature of the distance-time graph represents the hiker walking back to the start?
A.A horizontal line at a distance of 8 km
B.A line sloping downwards towards the time axis
C.A line with a steeper slope than the first segment
D.A vertical line reaching zero
- 10.
During a science experiment, a student plots the distance-time graph for a marble rolling down an inclined plane. If the graph is a straight line passing through the origin, what can be said about the marble's speed?
A.It is increasing uniformly
B.It is decreasing uniformly
C.It is constant (Uniform motion)
D.It is zero
Download the worksheet for Motion and Time - Distance-Time Graphs to practice offline. It includes additional chapter-level practice questions.