________________ motion is the calculation of the motion of an object with regard to some other moving or stationary object.

The change in position of a body with time is called _______________________ .

Which of the following are correct :

(a) A body is said to have a non-uniform motion, if it travels unequal distances in equal intervals of time, then no matter how small these intervals may be.

(b) A body is said to have a uniform motion, if it travels equal distances in equal intervals of time, no matter how small these intervals may be.

Which of the following are correct :

(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.

Motion is the change in _______________ of an object.

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.

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.

Which of the following are correct :

(a) A body is said to have a uniform motion, if it travels equal distances in equal intervals of time, no matter how small these intervals may be.

(b) A body is said to have a non-uniform motion, if it travels equal distances in equal intervals of time, no matter how small these intervals may be.

(c) If a car moving along a straight line covers equal distances in equal intervals of time, it is said to be in uniform motion.

Which of the following are correct ?

(a) The SI units of speed is m/s.

(b) When we talk about speed of aeroplanes and cars, it would be more appropriate to use km/h than m/s.

Which of the following are correct ?

(a) When an object in motion moves in a straight line, it is said to be in rectilinear motion.

(b) When an object in motion moves along a curved path, it is said to be in curvilinear motion.

(c) When an object in motion moves around a circular path, it is said to be in circular motion