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Q1 Give two examples each, of modes of transport used on land, water and air. Ans: Transportation is the method through which one object can move from one place to another through the transport. There are different modes of transport system on the basis of their requirement.
- Land transport: All automobiles like car, buses, trucks, bicycle are the examples of land transport.
- Water transport: Ship, boat, water crafts are the examples of water transport.
- Air transport: Aero-plane, helicopter, gliders are the examples of air transport.
Q2 Fill in the blanks: (i) One metre is ______________ cm. (ii) Five kilometre 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______________. Ans: (i) 100 According to metric scale, 1 meter = 100 cm.
(ii) 5000 1 km = 1000 meter
5 km = 5 x 1000
= 5000 meter
(iii) Circular Motion that occurs in circle is known as circular motion.
(iv) Periodic motion Motion that occurs after the same interval of time is known as periodic motion.
(v) Circular motion Motion that occurs in a circular path or when a body moves round and round called as it have circular motion.
Q3 Why can a pace or a footstep not be used as a standard unit of length? Ans: A pace or a footstep not be used as a standard unit of length because its size of the foot can be increase with the time. Footsteps size is differ from person to person. So, it cannot be used as a standard unit of length.
Q4 Arrange the following lengths in their increasing magnitude: 1 metre, 1 centimetre, 1 kilometre,1 millimetre. Ans: 1 mili-meter = 0.001 meter
1 kilometer = 1000 meter
1 centimeter = 0.01 meter
So, 1 mm < 1 cm. < 1 m. < 1 km
Q5 The height of a person is 1.65 m. Express it into cm and mm. Ans: Height of the person is 1.65 meter.
- 1m. = 100 cm. 1.65 = 1.65 x 100 100
1.65 m. = 165 cm.
- 1 m. = 1000 mili- meter
1.65 m = 165 x 1000 = 1650 mm 100
Q6 The distance between Radha's home and her school is 3250 m. Express this distance into km. Ans: Distance between Radha’s home and her school is 3250 meter.
- 1 m = 0.001 km
3250 m = 3250 x 1 . 1000
3250 m = 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? Ans: Reading of the scale at one end = 3.0 cm
Reading of the scale at other end = 33.1 cm
Total length of the needle = 33.1 – 3.0
= 30.1 cm.
Q8 Write the similarities and differences between the motion of a bicycle and a ceiling fan that has been switched on. Ans: Similarities between motion of bicycle and a ceiling fan:
Bicycle and ceiling fan both show circular motion. They both are fixed as wheel of bicycle is fixed as the ceiling fan.
Differences:
- Both shows different motion when fan is switched on. Like bicycle shows rectilinear motion but ceiling fan shows the circular motion.
- When a bicycle wheel rotates, movement from one place to another place occurs, whereas fan is fixed.
Q9 Why could you not use an elastic measuring tape to measure distance? What would be some of the problems you would meet in telling someone about a distance you measured with an elastic tape? Ans: We could not use elastic tape to measure distance because due to elasticity its measurement is not accurate or we can say not approximate. An elastic tape is stretched when we hold it from one end. Sometimes its size is reversed. So, accurate measurement is not taken by an elastic tape.
Q10 Give two examples of periodic motion. Ans: A motion which occurs in a definite interval of times is called periodic motion. For example: needle of a sewing machine, a child on swing, needle of a clock etc.
Chapter 10 Motion and Measurement of Distances
- Movement of object or any living thing from one place to another with the help of transport is known as transportation.
- There are different mode of transport like bus, bicycle, aero-plane, ship, bullock cart etc.
- A known quantity which is fixed us called as unit.
- In earlier times, we use foot length, hand span for the measurement.
- In 1790, standard unit of measurement is created by French, called metric system and it is followed all over the world.
- We can measure correctly with the help of a scale.
- A change in the position of the object or anything called motion. Example: moving bicycle etc.
- Motion are of different types: Rotatory motion, Oscillatory motion, rectilinear motion, Circular motion etc.
- Meter is the SI unit of length.
Download pdf of NCERT Solutions for Class Science Chapter 10 Motion and Measurement of Distances
Exercise 1 ( Page No. : 106 )
Popular Questions of Class 6 Science
- Q:-
Draw (a) a leaf, (b) a taproot and (c) a flower, you have studied for Table 7.3.
- Q:-
You are given an iron strip. How will you make it into a magnet?
- Q:-
Name two foods each rich in:
(a) Fats
(b) Starch
(c) Dietary fibre
(d) Protein - Q:-
A thick coating of a paste of Plaster of Paris (POP) is applied over the bandage on a fractured bone. It becomes hard on drying to keep the fractured bone immobilised. Can the change in POP be reversed?
- Q:-
Tick (√) the statements that are correct.
(a) By eating rice alone, we can fulfill nutritional requirement of our body. ( )
(b) Deficiency diseases can be prevented by eating a balanced diet. ( )
(c) Balanced diet for the body should contain a variety of food items. ( )
(d) Meat alone is sufficient to provide all nutrients to the body. ( ) - Q:-
List all items known to you that float on water. Check and see if they will float on an oil or kerosene.
- Q:-
Name the part of the plant which produces its food. Name this process.
- Q:-
Why can a pace or a footstep not be used as a standard unit of length?
- Q:-
Given below are the names of some objects and materials:
Water, basket ball, orange, sugar, globe, apple and earthen pitcher Group them as:
(a) Round shaped and other shapes
(b) Eatables and non eatables - Q:-
Name two items that are made from coconut fibre.
Recently Viewed Questions of Class 6 Science
- Q:-
Rearrange the boxes given below to make a sentence that helps us understand opaque objects.
- Q:-
Fill up the blanks
(a) The method of separating seeds of paddy from its stalks is called ___________.
(b) When milk, cooled after boiling, is poured onto a piece of cloth the cream (malai) is left behind on it. This process of separating cream from milk is an example of ___________.
(c) Salt is obtained from seawater by the process of ___________.
(d) Impurities settled at the bottom when muddy water was kept overnight in a bucket. The clear water was then poured off from the top. The process of separation used in this example is called ___________. - Q:-
Do you find that all living beings need the same kind of food?
- Q:-
A magnet was brought from different directions towards a toy boat that has been floating in water in a tub. Affect observed in each case is stated in Column I. Possible reasons for the observed affects are mentioned in Column II. Match the statements given in Column I with those in Column II.
Column I Column II
Boat gets attracted towards the magnet Boat is fitted with a magnet with north pole towards its head
Boat is not affected by the magnet Boat is fitted with a magnet with south pole towards its head
Boat moves towards the magnet if north Boat has a small magnet fixed along its length
pole of the magnet is brought near its
headBoat moves away from the magnet Boat is made of magnetic material when north pole is brought near its head
Boat floats without changing its direction Boat is made up non-magnetic material
- Q:-
Write any two properties of a magnet.
- Q:-
Some changes are listed in the following table. For each change, write in the blank column, whether the change can be reversed or not.
S.No. Change Can be reversed (Yes/ No) 1 The sawing of a piece of wood 2 The melting of ice candy 3 Dissolving sugar in water 4 The cooking of food 5 The ripening of a mango 6 Souring of milk - Q:-
Fill in the blanks in the following
(i) Artificial magnets are made in different shapes such as __________, __________ and ____________.
(ii) The Materials which are attracted towards a magnet are called________.
(iii) Paper is not a ______ material.
(iv) In olden days, sailors used to find direction by suspending a piece of ___________.
(v) A magnet always has __________ poles. - Q:-
State whether the following statements are true or false:
a) Yarn is made from fibres.
b) Spinning is a process of making fibres.
c) Jute is the outer covering of coconut.
d) The process of removing seed from cotton is called ginning.
e) Weaving of yarn makes a piece of fabric.
f) Silk fibre is obtained from the stem of a plant.
g) Polyester is a natural fibre. - Q:-
How will you separate sand and water from their mixture?
- Q:-
Tick (√) the statements that are correct.
(a) By eating rice alone, we can fulfill nutritional requirement of our body. ( )
(b) Deficiency diseases can be prevented by eating a balanced diet. ( )
(c) Balanced diet for the body should contain a variety of food items. ( )
(d) Meat alone is sufficient to provide all nutrients to the body. ( )
- NCERT Chapter