Since,  1983 the standard unit of length is metre. It is defined as the distance at 0⁰ C between two lines drawn on a platinum irridium rod kept in international bureau of weights and measures at screws near Paris. 

This is the only correct statement. The measurement is considered complete only if it shows the number and unit of measurement.

1/100 part of a metre is centimetre.

This is a kind of oscillatory motion in which the moving object undergoes a change in size and shape. This is incorrect because a child on swing does not change its size and shape.

A motion in which a body moves along a fixed axis without changing its position is called a circular or rotatory motion. The potters wheel moves in this type of motion.

All are showing multiple motions. Ball moving along the ground shows rotatory and rectilinear motions. Earth shows rotatory and translatory motions. Drilling machine rotatory and downward translator motions.

This is the correct matching.  Area of a surface is measured in square metre. Volume of air in a room is measured in cubic metre. Length of a rod is measured in metres.

A motion in which an object describes to and fro or back and forth motion along the same path. This is the correct option.

This is a measuring stick used as a measuring instrument having a sequence of marks at regular intervals. This is used as a reference in making measurements. This device will be the correct choice for measuring ribbon.

All of these can be measured. Mass is measured in weight. Length is measured in distance. Time is measured in hours.

This is the correct answer. A repetitive motion,  which repeats itself but not at fixed intervals of time is called non periodic motion. A football player running in the field is performing this as sometimes he runs fast and sometimes slowly and in different directions.

F is foot P is pound and S is second. The British system of measurement is FPS system. Thus, this is the correct option.

All these are correct statements. The scale that is used to measure the object must be greater than the length of the object. The two devices that can be used to measure length are: Metre scale and Screw gauge. In oscillatory motion a body repeats its action in equal interval of time so, all periodic motions are oscillatory motion and vice versa.

This is the correct option. The standard units of mass, length and time in SI system of measurements are Kilogram, Metre, Second.

A cubit is not a standard unit of measuring length because it is an arms length,  which can vary from person to person. This is the correct option.