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
Pendulum of a given length always takes
  • A
    Unequal times in some oscillation
  • B
    Equal times in some oscillation
  • C
    Unequal times in one oscillation
  • D
    Equal times in one oscillation
    Correct
2
In vehicles, odometer is fitted to measure
  • A
    Speed of the vehicle at particular time
  • B
    Total time taken
  • C
    Total distance traveled
    Correct
  • D
    Average speed of the vehicle
3
Rate of change in velocity per unit time is called
  • A
    Initial velocity
  • B
    Momentum
  • C
    Displacement
  • D
    Acceleration
    Correct
4
A body completes one revolution of a circular path of radius 7m. The total displacement of the body is equal to
  • A
    22 m
  • B
    0 m
    Correct
  • C
    11 m
  • D
    77 m
5
Speedometer is fitted on the dashboard of car to measure the
  • A
    Total displacement of the car
  • B
    Total distance covered by car
  • C
    Average speed of total journey
  • D
    Speed of the car at particular time
    Correct
6
Sundial at Jantar Mantar, Delhi used to measure time in ancient time is based on
  • A
    Shadow formation at particular time
    Correct
  • B
    Position of moon at particular time
  • C
    Structure formed by stars
  • D
    Position of sun at particular time
7
A bus traveled 90 km in 2 hour. The average speed of the bus for that period is
  • A
    30 km/h
  • B
    45 m/s
  • C
    90 km/h
  • D
    45 km/h
    Correct
8
When a body is said to be in uniform speed, it covers equal distance in
  • A
    Unequal interval of time
  • B
    One hour
  • C
    One minute
  • D
    Equal interval of time
    Correct
9
One millennium is equal to
  • A
    10 years
  • B
    786 years
  • C
    100 years
  • D
    1000 years
    Correct
10
Stop watch is used by athletic trainer to measure the
  • A
    Greenwich mean time
  • B
    Exact time at particular place
  • C
    Rate of breathing of trainee after the event
  • D
    Time taken to complete the event by trainee
    Correct
11
A body moving with accelerated velocity always possess
  • A
    Actual speed
  • B
    Uniform speed
  • C
    Non-uniform speed
    Correct
  • D
    Average speed
12
One microsecond is ------------------ of a second.
  • A
    1/100
  • B
    1/10000
  • C
    1/1000
    Correct
  • D
    1/10
13
The speed of 10 m/s is equal to speed of
  • A
    10 km/h
  • B
    20 km/h
  • C
    36 km/h
    Correct
  • D
    50 km/h
14
Lightening of thunder is heard earlier than it sound because
  • A
    Sound travels faster in air
  • B
    Light is slower than sound
  • C
    Light travels faster than sound
    Correct
  • D
    Speed of light is less in air
15
Speed of vehicle is not always uniform on road because of
  • A
    Red light slows down the speed
  • B
    Traffic and red light
    Correct
  • C
    Road is not always straight
  • D
    Other vehicle moving in opposite direction