CBSE Questions for Class 7 Physics Motion And Time Quiz 5 - MCQExams.com

Which of the following figures represents uniform motion of a moving object correctly?
The correct symbol to represent the speed of an object is
  • $$5m/s$$
  • $$5mp$$
  • $$5 m/ sec^{-1} $$
  • $$5 s/m$$
Which of the following does not express a time interval?
  • A day
  • A second
  • A school period
  • Time of the first bell in the school
Tick the most appropriate answer.
Which of the following is not a common unit for measuring time ?
  • Hour
  • Mean solar day
  • Year
  • Sundial

A black paper absorbs light of all the colours and reflects none.
  • True
  • False
Tick the most appropriate answer.
A train departs from Delhi railway station at $$21 : 50$$ hours every day. The time shown in your analog watch at the departure will be
  • $$2 : 50 \ a.m.$$
  • $$9 : 50 \ p.m.$$
  • $$9:50 \ a.m.$$
  • $$11:50 \ p.m.$$
$$18\ km\ h^{-1}$$ is equal to :
  • $$10\ ms^{-1}$$
  • $$5\ ms^{-1}$$
  • $$18\ ms^{-1}$$
  • $$1.8\ ms^{-1}$$
A simple pendulum is set into vibrations. The bob of the pendulum comes to rest after some time due to
  • Air friction
  • Moment of inertia
  • Weight of the bob
  • Combination of all the above
The motion of a drawer table can be termed as 
  • Periodic motion
  • Circular motion
  • Translatory motion
  • Random motion
Two cyclists, k km apart, and starting at the same time, would be together In r hours if they travelled in the same direction, but would pass each other In t hours if they travelled in opposite directions. The ratio of the speed of the faster cyclist to that of the slower is ____
  • $$\frac{r+t}{r-t}$$
  • $$\frac{r}{r-t}$$
  • $$\frac{r+t}{r}$$
  • $$\frac{r}{t}$$
Speed-distance graph of an object in uniform motion which comes to rest suddenly is
Match the situations given in column I with the possible curves in column II and select the correct option, from codes given
932567_9ff6e20d598147c19ca28855210e59a5.png
  • (a) $$\rightarrow$$ (q), (b) $$\rightarrow$$ (8), (c) $$\rightarrow$$ (p). (d) $$\rightarrow$$ (r)
  • (a) $$\rightarrow$$ (s,r). (b) $$\rightarrow$$ (q), (c) $$\rightarrow$$ (s), (d) $$\rightarrow$$ (p)
  • (a) $$\rightarrow$$(q,s); (b) $$\rightarrow$$ (r), (c) $$\rightarrow$$ (p), (d) $$\rightarrow$$ (s)
  • (a) $$\rightarrow$$(s), (b) $$\rightarrow$$ (q,p), (c) $$\rightarrow$$ (s), (d) $$\rightarrow$$ (r)
A rod of length/leans by its upper end against a smooth vertical wall while its other end leans against the floor. The end that leans against the wall moves uniformly downwards. Then:
  • The other end also moves uniformly.
  • The speed on other end goes on increasing.
  • The speed on other end goes on decreasing.
  • The speed on other end first decreasing and then increasing.
In a damped oscillator, the mass of the oscillator is m = 200g, force constant is K = 90N/m and the damping constant b is 40 g/s. Find the time taken for its mecharical energy to drop to half its initial value 
  • 0.3s
  • 0.208 s
  • 6.93s
  • 3.46s
$$a$$. A boy moving on a bicycle with a speed of $$18~ km/h$$.
$$b$$. A fast runner running with a speed of $$10 ~m/s$$.
$$c$$. A scooter moving with a speed of $$800 ~m/min$$.
  • $$c > b > a$$
  • $$b > c > a$$
  • $$a> b > c$$
  • $$c > a > b$$
Unit of Time is:
  • Metre
  • Kilometre
  • Second
  • None of these
Choose whether true or false:-
The same vehicle moves the same in different times.
  • True
  • False
When can we tell which vehicle is moving fast or slow?
  • When the vehicles are moving on a road in the same direction
  • When the vehicles are moving on a road in different directions
  • When the vehicles are moving on a road at the same time
  • When the vehicles are moving on a road at different times
Look at first figure. It shows the position of some vehicles moving on a road in the same direction at some instant of time. Now look at second figure. It shows the position of the same vehicles after some time, which vehicle is moving the fastest of all?
1951130_06f8023c376b42e18d023f1ddf95d18e.jpg
  • Red
  • White
  • Yellow
  • Green
The faster vehicle has ______.
  • covered same distance in the time interval
  • a higher speed
  • covered less distance in the time interval
  • taken more time to cover the small distance
Which of the following is true?
  • In a race, the one who takes longest time to cover the distance of the race has the highest speed
  • In a race, the one who takes shortest time to cover the distance of the race has the slowest speed
  • In a race, the one who takes shortest time to cover the distance of the race has the highest speed
  • None of these
How can we know which vehicle is moving faster or slower?
  • By measuring time taken by the vehicle to cover a distance
  • By measuring the total distance covered by a vehicle
  • By measuring total time taken by the vehicle
  • None of these
Which of the following represents uniform motion?
  • A car travelling at a constant speed
  • A ball falling from the top of a building
  • A runner at their top speed
  • All of these
The distance-time graph of the non-uniform motion is a _________ line
  • curved
  • straight
  • straight then curved
  • none of these
Which of the following is not an example of motion?
  • A car in traffic
  • A bus moving on a road
  • A tree
  • A pedestrian on the road
Periodic motion is not a type of motion.
  • True
  • False
Which of the following is a type of motion?
  • Circular
  • Linear
  • Oscillating
  • All of the above
Which of the following is an example of non-uniform motion?
  • Movement of an asteroid
  • A car coming to a halt
  • A bouncing ball
  • All of these
When one says an object is moving fast or slow, one is referring to the object's _________.
  • Speed
  • Weight
  • Colour
  • None of these
Which of the following is an example of uniform circular motion?
  • Movement of blades of a ceiling fan
  • The motion of a train
  • An object falling
  • None of these
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