NCERT Class 6 Science Chapter 10 Motion and Measurement of Distances Extra Questions and Answers
Class 6 Science Chapter 10 Extra Inside Questions and Answers – Motion and Measurement of Distances. Here in this Page Class VI Students can Learn Extra Questions & Answer 10th Chapter Science fully Inside.
We Provided Here Motion and Measurement of Distances Science Chapter 10 Long Answer Type Question, MCQ Questions & Answer, Short Answer Type Questions (2 or 3 marks), and Very Short answer Type Question (1 marks).
Class 6 Science Chapter 10 Extra Question with Answer – Motion and Measurement of Distances
Science Chapter 10 Motion and Measurement of Distances Class 6 Inside 5 Marks, 3 marks, 2 Marks & And 1 Marks Important Questions and Answers.
MCQ Type Extra Questions
(1) The scientists repeat measurements during experiments so that:
(a) Check whether the instruments used are inaccurate.
(b) List measurements taken in a table.
(c) Tale the measurements taken is a table
(c) Take the average and reduce the possibility of error.
(d) Get more than one answer.
Ans:- (c) Take the average and reduce the possibility of error.
(2) In a given system of units, the ratio of the unit of volume to that of area gives the unit of
(a) Length
(b) Mass
(c) Time
(d) Temperature
Ans:- (a) Length
(3) How many centimetre make one kilometre ?
(a) 10
(b) 1000
(c) 100
(d) 1,00,000
Ans:- (d) 1,00,000
(4) The standard unit of length in the Si system is
(a) cubit
(b) centimetre
(c) metre
(d) Span
Ans:- (c) metre
(5) The footstep is an unreliable measure of length because :
(a) People do not measure property with it.
(b) It various from person to person
(c) Some people jump too much while measuring with the footstep
(d) It is a standard unit of measurement.
Ans:- (b) It various from person to person
Very Short Answer Type Extra Questions
(1) Define Yard.
Solution:
The Distance the chin and the end of the outstretched arm.
(2) Name the types of motion in following: –
(i) A car moving on a straight road
(ii) Motion of a pendulum
Solution:
(i) Rectilinear motion
(ii) Periodic motion
(3) Express:
(i) 1.5 as cm
(ii) 2.4 km as m
Solution:
(a) 1.5 m as cm
1.5 x 100 = 150 cm
(b) 2.4 km as m
2.4 x 1000 = 2400 m
(4) From the set of units – mm, cm, m, km – which one will you use to measure:
(i) Height of a baby.
(ii) Distance of your school from home.
Solution:
Height of a baby = cm
Distance of school home = Km
(5) A women is separating husks from grains by winnowing. What of motion would you observe?
Solution:
Periodic motion
- In case you have missed:- Previous Chapter Extra Questions
Short Answer Type Extra Questions
(1) Define the following terms:
Motion
Rest
Solution:
Motion – Motion change in position an object with time
Rest – When an object doesn’t changes its position with time. It is said to be at rest.
(2) What is rectilinear motion? Give an example.
Solution:
Rectilinear motion – It is a motion in a straight line. Eg: Soldiers marching in a straight line.
(3) Why should one not use an elastic measuring tape to measure distance?
Solution:
We shouldn’t use an elastic measuring tape as it is stretchable and will give wrong readings.
(4) Why can a pace or footstep not be used as a standard unit of length?
Solution:
We can’t use footstep as standard unit of length as it differs from person to person.
(5) The height of person is 1.65 metre. Express it cm and mm.
Solution:
1.65 x 100 = 165 cm
1.65 x 1000 = 1650 mm
Long Answer Type Extra Questions
(4) How will you measure the length of a curve? Write in prescise steps.
Solution: (i) Name the curved line AB.
(ii) Take a thread and put a knot on one of the thread.
(iii) Move the thread along a curved line till the point B and make a mark on the thread.
(iv) Place the knot on point A of the curved line.
(v) Measure the length of thread with a scale.
(5) Why should we have standard units of measurement? Explain giving an example
Solution: We should have standard units of measurement to:
(a) Avoid confusion
E.g Using handspan can give you different measurement.
(b) To maintain accuracy and uniformity.
More Extra Questions:
1) Fill in the blanks:
a) 1 m (Meter) = _____ cm (Centimeter).(100)
b) The lager unit of length is _____.(Kilometer)
c) Motion in a straight line is called _____.(Rectilinear motion)
d) 4 km (Kilometer) = _____ m (Meter).(4000)
e) A carpenter needs to measure the _____and_____ of a cupboard to know how much wood he would need to make a door.(Height and width)
2) What is the full form of SI unit?
Ans: The full form of SI unit is International System of Units.
3) What type of measuring device does a cloth merchant use for measurement?
Ans: A cloth merchant uses a meter rod for measurement.
4) Which unit of measurement is used to measure the quantity of a liquid?
Ans: Liter is used to measure the quantity of a liquid.
5) The distance between Ravi’s home and his office is 2382m. Express it into km.
Ans: We know, 1000m = 1km.
So, 2382m = (2382/1000) km = 2.382km.
6) Multiple choice questions:
a) Motion of an electric fan is _____?
a) Circular motion b) Rectilinear motion c) Periodic motion
Ans: a) Circular motion
b) 6 cm (Centimeter) = _____ mm (Millimeter)?
a) 600 b) 60 c) 6000
Ans: b) 6o
c) Motion of a car in a straight track is ______?
a) Periodic motion b) Rectilinear motion c) Circular motion
Ans: b) Rectilinear motion
d) The SI unit of length is a ____?
a) Millimeter b) Meter c) Centimeter
Ans: b) Meter
e) The tailor needs to measure the _____ of the cloth to know if it is enough to stitch a kurta.
a) Height b) Distance c) Length
Ans: c) Length
7) Answer the following questions:
a) What is periodic motion? Give an example of periodic motion.
Ans: Motion that repeat itself after some period of time is called periodic motion.
Example – The motion of a child on a swing.
b) Give two examples of circular motion.
Ans: The motion of electric fan and the motion of giant wheel.
c) What is measurement? What type of measuring device does a tailor use for measurement?
Ans: Measurement means the comparison of an unknown quantity with some known quantity.
A tailor uses a tape for measurement.
d) The height of a person is 1.65m. Express it in cm and mm.
Ans: We know, 1m = 100cm.
So, 1.65m = (100 * 1.65) cm = 165cm
Now we know that, 1m = 1000mm.
So, 1.65m = (1000 * 1.65) mm = 1650mm
8) Classify the following as rectilinear, circular, periodic motion:
a) The motion of plucked string of a guitar. (Periodic)
b) The motion of a falling stone. (Rectilinear)
c) The motion of the earth around the sun. (Circular)
d) The spinning of earth on its axis. (Periodic)
e) The motion of vehicle on a straight road. (Rectilinear)
9) Mark your answer as per the codes provide below:
a) A: The motion of a pendulum is periodic motion.
R:) Pendulum repeats its motion after some time.
I.) Both A and R are true and R is the correct explanation of A.
II.) Both A and R are true but R is not the correct explanation of A.
III.) A is true but R is false.
IV.) A is false but R is true.
Ans: I. Both A and R are true and R is the correct explanation of A.
b) A: March-past of soldiers in parade is an example of rectilinear motion.
R:) Its distance from a fixed point remains the same.
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
III. A is true but R is false.
A is false but R is true.
Ans: III. A is true but R is false.
10) Until the beginning of the 19th century, people still depended on animal, boats and ships to transport them from place to place.
a) In the beginning of the 19th century, which invention led to the development of new means of transportation? (Wheel/Steam engine)
Ans: Steam engine
b) Steam engine used ____ as fuel for making steam. (Coal)
In case you have missed:- Next Chapter Extra Questions