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1
A type of motion that repeats itself after equal intervals of time is called ______________________.
Relative motion
Periodic motion
Linear motion
None of these.
2
A body is said to have a ________________ motion, if it travels unequal distances in equal intervals of time, then no matter how small these intervals may be.
Uniform
Non-uniform
Relative
3
________________ motion is the calculation of the motion of an object with regard to some other moving or stationary object.
Osillatory
4
The persons sitting in a moving bus are at rest with respect to one another, but are in motion with respect to a ______________ standing along the road side,.
Person
Animal
Dog
All of these.
5
Which of the following is an example of non-uniform motion ?
Car moving through a crowded market
Car moving along a straight line covers equal distances in equal intervals of time
Both (a) and (b) are correct.
6
An electric pole appears to be at __________________, when we observe it by standing on the road but the same pole appears to be moving, when we observe it from a running train.
Rest
Stationary
7
A motion that does not repeat itself at regular intervals or a motion that does not repeat itself at all is called_______________________.
Non periodic motion
8
Motion is the change in _______________ of an object.
Position
Direction
Shape
None of these .
9
The change in position of a body with time is called _______________________ .
Displacement
Motion
Speed
10
Which of the following are correct :
(a) A type of motion that repeats itself after equal intervals of time is called periodic motion.
(b) A motion that does not repeat itself at regular intervals or a motion that does not repeat itself at all is called periodic motion.
Only (a) is correct.
Only (b) is correct.
11
(a) An object is said to be in uniform motion when it moves along a straight path, and covers equal distance in equal intervals of time.
(b) An object is said to be in non-uniform motion when it moves along a straight path, and covers equal distance in equal intervals of time.
12
Which of the following are correct ?
(a) Average speed of an object in a time interval is equal to the total distance traveled divided by the total time taken.
(b) The SI unit of speed is meter per second.
Only (a) is correct .
Only (b) is correct .
Both (a) and (b) is correct .
13
(a) The persons sitting in a moving bus are at rest with respect to one another, but are in motion with respect to a person standing along the road side.
(b) The persons sitting in a moving bus are at motion with respect to one another, but are in rest with respect to a person standing along the road side.
14
(a) A motion that does not repeat itself at regular intervals or a motion that does not repeat itself at all is called periodic motion.
(b) A motion that does not repeat itself at regular intervals or a motion that does not repeat itself at all is called non- periodic motion.
(c) Example of non- periodic motion are a car moving on a road, a bird gliding across the sky.
Only (a) and (b) are correct.
Only (b) and (c) are correct.
Only (a) and (c) are correct.
15
(b) A type of motion that repeats itself after equal intervals of time is called non-periodic motion.
(c) Examples of periodic motion are the rotation of the earth about its axis, the revolution of the earth around the sun.