Class 7 Motion And Time CBSE Questions & Answers

Class 7 · Motion And Time

This is Science Class 7 Motion and Time CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
A moving swing has
  • A
    Circular motion
  • B
    Non periodic motion
  • C
    Rectilinear motion
  • D
    Rotational motion
    Correct
2
S.I unit of time is
  • A
    Second
    Correct
  • B
    Minute
  • C
    Day
  • D
    Hour
3
To and fro movement of body is termed as
  • A
    Circular and periodic motion.
  • B
    Oscillatory motion
  • C
    Periodic motion
  • D
    Vibratory motion
    Correct
4
When the motion of the object is not along a fixed path with changing direction
  • A
    Random motion
    Correct
  • B
    Periodic motion
  • C
    Circular motion.
  • D
    Oscillatory motion
5
When the motion of the object is not along a fixed path with changing direction
  • A
    Oscillatory motion
  • B
    Random motion
    Correct
  • C
    Circular motion.
  • D
    Periodic motion
6
Distance covered by a body in given interval of time decide that which one is
  • A
    At rest or motion
  • B
    Faster or slower
    Correct
  • C
    Bigger or smaller
  • D
    Lighter of heavier
7
The speed of a car traveled in particular interval of time is
  • A
    Momentary speed
  • B
    Pick speed
  • C
    Actual speed
  • D
    Average speed
    Correct
8
Average speed of a moving object is the total distance covered divided by
  • A
    Actual speed
  • B
    Total time taken
    Correct
  • C
    Velocity
  • D
    Kinetic energy
9
A body is said to be in state of rest if it
  • A
    Does not change its position with time
    Correct
  • B
    Moves with equal speed to other moving body
  • C
    Moves very slowly with time
  • D
    Change its position with time
10
If speed of an object moving along straight line keeps changing, its speed is
  • A
    Constant
  • B
    Non-uniform
    Correct
  • C
    Average
  • D
    Uniform
11
In uniform motion, average speed is equal to
  • A
    Calculated speed
  • B
    Actual speed
    Correct
  • C
    Momentary speed
  • D
    All of the above
12
One oscillation of a pendulum is completed when it moves form one extreme to
  • A
    Return back at same extreme
  • B
    Mean
  • C
    Other extreme
    Correct
  • D
    Half of other extreme
13
A pendulum completes 20 oscillations in 30 seconds. The time period of the pendulum is
  • A
    0.66 s
  • B
    1.5 s
    Correct
  • C
    2 s
  • D
    1 s
14
A train covers 90 km in 1 hour. The average speed of the train is
  • A
    90 m/s
  • B
    25 m/s
    Correct
  • C
    25 km/h
  • D
    20 m/s
15
State of rest or motion is always compared with
  • A
    Position of observer
  • B
    Position of the car wheels
  • C
    Other body in surrounding
    Correct
  • D
    Position of the body in vehicle