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3

Classify the following as scalar and vector quantities.

(i) time period (ii) distance (iii) force

(iv) velocity (v) work done

Scalars are defined as quantities that have magnitude only.

Vectors are defined as a quantity that has magnitude as well as direction.

(i) **time period:** It is a __scalar__ quantity as it has magnitude only and no direction.

(ii) **distance:** It is a __scalar__ quantity as it has magnitude only and no direction.

(iii) **force:** It is a __vector__ quantity as it has magnitude as well as direction.

(iv) **velocity:** It is a __vector__ quantity as it has magnitude as well as direction.

(v) **work done:** It is a __scalar__ quantity as it has magnitude as well as direction.

4

5

Answer the following as true or false.

(i) and are collinear.

(ii) Two collinear vectors are always equal in magnitude.

(iii) Two vectors having same magnitude are collinear.

(iv) Two collinear vectors having the same magnitude are equal.