Out of the following which one unit does not belong to S.I.?

1. Metre
2. Pound
3. Second
4. Kilogram

1 square yard is equal to :

1. 1 yard x 1 yard
2. 1 yard × 1 square ft
3. 1 yard × 1 acre
4. none of these

Fill in the blanks :

(a) The S.I. unit of length is …………… , of time is …………… , of mass is ……………

(b) °C is the unit of ……………

(c) 1 metric tonne = …………… kg.

(d) The zero mark in Celsius thermometer is the melting point of ……………

(e) The thermometer used to measure the human body temperature is called the …………… thermometer.

(f) The normal temperature of human body is …………… °C or …………… °F.

(g) The …………… of an object is measured with the help of a beam balance.

Write true or false for each statement :

(a) S.I. unit of temperature is fahrenheit.

(b) Every measurement involves two things - a number and a unit.

(c) Mass is the measure of quantity of matter.

(d) The S.I. unit of time is hour.

(e) Area can be expressed as the product of lengths of two sides.