Motion and Time

The basic unit of speed is
1. km/min
2. m/min
3. km/sec
4. m/sec
A faster moving object covers more distance in _________ time
1. less
2. more
3. BothA&B
4. None
Which of the following cannot be used for measurement of time?
1. A leaking tap.
2. Simple pendulum.
3. Shadow of an object during the day.
4. Blinking of eyes.
If we denote speed by S, distance by D and time by T, the relationship between these quantities is
1. S = D × T
2. T = S / D
3. S = D/ T
4. S = T / D
Observe Figure

The time period of a simple pendulum is the time taken by it to travel from
1. A to B and back to A.
2. O to A, A to B and B to A.
3. B to A, A to B and B to O.
4. A to B.
The correct symbol to represent the speed of an object is
1. 5 m/s
2. 5 mp
3. 5 m/s-1
4. 5 s/m
A bus travels 54 km in 90 minutes. The speed of the bus is
1. 0.6 m/s
2. 10 m/s
3. 5.4 m/s
4. 3.6 m/s
A pendulum takes 0.5 s to make one oscillation about its mean position. How long will it take to make 5 oscillations?
1. 5 sec
2. 7.5 sec
3. 2.5 sec
4. 10 sec
Which of the following are NOT in uniform motion?
(i) A bullet travelling with a constant speed in a straight line
(ii) A Swinging pendulum
(iii) The rotation of earth
1. Only (i) and (ii)
2. Only (ii) and (iii)
3. Only (i) and (ii)
4. (i), (ii) and iii
Which of the following does NOT show oscillatory motion?
1. Swing
2. Fan
3. See-SAw
4. Pendulum
A man runs 10 km in 30 min. What is his speed per hour?
1. 5 km/h
2. 10 km/h
3. 15 km/h
4. 20 km/h
A car travels with a speed of 50km/h in the 1st hour and 100km/h in the 2nd hour. What is the total distance covered by the car in the two hours?
1. 50 km
2. 100 km
3. 150 km
4. 200 km
A graph is shown below. What does the area of the shaded portion in the graph represent?
1. Distance
2. speed
3. Time
4. Uniform motion
Which of the following is the most suitable device for measuring the time the runners take in a 100 m marathon?
1. Hourglass
2. Stopwatch
3. Pendulum
4. Sundial
In a marathon, Varun runs 800 metres in 2 minutes 40 seconds. What is his speed in metres per second?
1. 4 m/s
2. 5 m/s
3. 200 m/s
4. 1600 m/s
Which of the following shows motion in a straight line?
1. A bullet shot from a gun
2. A tree swaying
3. Child on a merry-go-round
4. The motion of strings in a guitar
Which of the following is given incorrectly
1. Speedometer : Speed
2. Odometer : Odour
3. Anemometer : Wind speed
4. Stopwatch : Time
A body moves on a circular track covering one complete round of 60 m in 10 seconds. Find its average speed.
1. 3 m/s
2. 6 m/s
3. 36 m/s
4. 600 m/s
Which of the following travels the fastest?
1. Cheetah
2. Wind
3. Sound
4. Light
A person is seated in a train under motion. With reference to which of the following surroundings is he at rest?
1. Person watching him from the front seat
2. Person watching him from the ground
3. Trees on the ground
4. A car moving in the opposite direction to the train
Study the given distance-time graph for three cars P, Q and R in a race.
Which of the three cars win the race?
1. Car P
2. Car Q
3. Car R
4. Both Q and R
The speed of a train is 20m/s.What is the speed in km/h
1. 60 km/h
2. 40 km/h
3. 72 km/h
4. 20 km/h
A spin drier spins at a rate of 600 revolutions per minute. How many revolutions would it make in 1 minute 20 seconds?
1. 600
2. 800
3. 900
4. 1000
A car covered a distance of 3 km in 5 minutes. What is the speed with which the car travelled?
(i) 100m/s
(ii)136km/h
(iii)1000cm/s
(iv) 600m/min
1. Only (i) and (ii)
2. Only (ii) and (iii)
3. Only (i) and (iii)and (iv)
4. Only (ii) and (iii)and (iv)
Which of the following events is used for the measurement of time?
1. Occurrence of an earthquake
2. Speedometer in a vehicle
3. Motion of a pendulum
4. Collision of a meteorite with a planet
Which of the following can be used for measuring the time under ideal conditions?
(i) The swing of a pendulum
(ii) Pulse rate
(iii) The changing of days and nights
1. Only (i) and (ii)
2. Only (ii) and (iii)
3. Only (i) and (iii)
4. (i), (ii) and (iii)
The meter that measures the distance moved by a vehicle is
1. Speedometer
2. Anemometer
3. Odometer
4. Therometer
The meter that is used to measure speed of a vehicle is ( )
1. Speedometer
2. Odometer
3. Anemomter
4. Thermometer
The speedometer of a vehicle measures the speed in
1. m/s
2. Km/hr
3. m/min
4. km/min
The time taken by a pendulum of given length to complete one oscillation is
1. Different at different times
2. Decreases at different
3. Same at all timestimes
4. Increases at different times

Motion and Time

Quiz