# NCERT Solutions for Class 6 Science Chapter 10 Motion And Measurement Of Distances

Written by Team Trustudies
Updated at 2021-03-08

## NCERT solutions for class 6 Science Chapter 10 Motion And Measurement Of Distances Exercise

Q1 ) Give two examples each, of modes of transport used on land, water and air.

NCERT Solutions for Class 6 Science Chapter 10 Motion And Measurement Of Distances

Land- Bus, Car
Water- Boat, Ship
Air- Helicopter, Airoplane

Q2 ) Q.2 Fill in the blanks:

(i) One metre is ______________ cm.
(ii) Five kilometer is ______________ m.
(iii) Motion of a child on a swing is ______________.
(iv) Motion of the needle of a sewing machine is ______________.
(v) Motion of wheel of a bicycle is______________.

NCERT Solutions for Class 6 Science Chapter 10 Motion And Measurement Of Distances

(i) One metre is $100$ cm.

(ii) Five kilometers is $5000m$ .

(iii) The motion of a child on a swing is $periodic$ .

(iv) The motion of the needle of a sewing machine is $periodic$ .

(v) The motion of the wheel of a bicycle is $circular$ .

Q3 ) Why can a pace or a footstep not be used as a standard unit of length?

NCERT Solutions for Class 6 Science Chapter 10 Motion And Measurement Of Distances

Pace or a footstep cannot be used as a standard unit of length because everyone's pace or a footstep are of different sizes.

Q4 ) Arrange the following lengths in their increasing magnitude: 1 metre, 1 centimeter, 1 kilometer, 1 millimeter.

NCERT Solutions for Class 6 Science Chapter 10 Motion And Measurement Of Distances

1 millimeter <1 centimeter < 1 metre <1 kilometer

1 centimeter = 10 millimeter
1 metre = 100 centimeter
1 kilometer = 1000 meter

Q5 ) The height of a person is 1.65 m. Express it into cm and mm.

NCERT Solutions for Class 6 Science Chapter 10 Motion And Measurement Of Distances

1.65m
=( 1.65 × 100 )cm
=165 cm
= ( 165× 10 )mm
= 1650 mm

Q6 ) The distance between Radha’s home and her school is 3250 m. Express this distance into km.

NCERT Solutions for Class 6 Science Chapter 10 Motion And Measurement Of Distances

$?$ 1000 m = 1km

$?$ 1 m = $\frac{1}{1000}$ km

$?$ 3250 m = $\frac{1×3250}{1000}$ km = 3.25 km

Q7 ) While measuring the length of a knitting needle, the reading of the scale at one end is 3.0 cm and at the other end is 33.1 cm. What is the length of the needle?

NCERT Solutions for Class 6 Science Chapter 10 Motion And Measurement Of Distances

Length of needle
= One end - other end
= 33.1 cm – 3.0 cm
= 30.1 cm.

Q8 ) Write the similarities and differences between the motion of a bicycle and a ceiling fan that has been switched on.

NCERT Solutions for Class 6 Science Chapter 10 Motion And Measurement Of Distances

Similarities: - Wheel of a bicycle and ceiling fan both having circular motion.

Differences: - Bicycle have rectilinear motion but ceiling fan have not rectilinear motion.

Q9 ) Why would you not like to use a measuring tape made of an elastic material like rubber to measure distance? What would be some of the problems you would meet in telling someone about a distance you measured with such a tape?

NCERT Solutions for Class 6 Science Chapter 10 Motion And Measurement Of Distances

A measuring tape is not made of an elastic material like rubber because elastic tap will not give right measurement because elasticity is increased or decreased the size of tape which will not be give properly reading of measurements.

Q10 ) Give two examples of periodic motion.

NCERT Solutions for Class 6 Science Chapter 10 Motion And Measurement Of Distances