Worksheet for Motion and Measurement of distances Class 6 Science
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Question 1
Match the events related to motion in Column I with the types of motions given in Column II
Question 2
A man moves on a straight road from point A to point C. She takes 20 minutes to cover a certain distance AB and 30 minutes to cover the rest of distance BC. Man then turns back and takes 30 minutes to cover the distance CB and 20 minutes to cover the rest of the distance to his starting point. Man makes 10 rounds on the road the same way. The motion of the man is
(a) only rectilinear motion.
(b) only periodic motion.
(c) rectilinear and periodic both.
(d) neither rectilinear nor periodic Question 3
Which of the following is incorrect
a. $1 \; mm = \frac {1}{1000} \; m$
b. $ 1 \; cm =\frac {1}{100} \; m$
c. $ 1 \; m =\frac {1}{100} \; km$
d. None of the above
Answer(2-3)
(2)(c)
(3)(c)
Question 4
Arrange the following lengths in their increasing magnitude:
2 metre, 2400 centimetre,10000 millimetre, .02 km
Answer
2400 centimetre < .02 km < 2400 centimetre < 2 metre
Question 5
Fill in the blanks
(i) Motion of an object or a part of it around a fixed point is known as _________ motion.
(ii) A body repeating its motion after certain interval of time is in ________ motion.
(iii) The ball is rolling on the ground is having both ________ and ___________ motion
(iv) SI unit of length is _______________
(v) The comparison of unknown quantity with the known quantity is called __________
Answer
i. Circular
ii. Periodic
iii. Rectilinear and rotation
iv. metre
v. measurement
Question 6
Which of the following does not express a time interval?
(a) A day
(b) A second
(c) A school period
(d) Time of the first bell in the school
Answer
(d)
Question 7
Four children A,B,C and D measure the length of a table which was about 1 m. Each of them used different ways to measure it.
(i) A measured it using a 2 m long measuring tape.
(ii) B measured it with a 10 cm scale from her geometry box.
(iii)C measured it using her hand span.
(iv) D measured it with a .5 metre long thread.
Which one of them would get the most accurate length? Give reason for your answer.
Answer
A would get the most accurate length because the length of the table can be measured in one go as the measuring tape is longer than the table. In the
other cases the chance of making an error is higher due to multiple measurement.
Question 8
X and Y starts from point A . X start running through AB and reach point B. Y also starts running through path ABC and reach B at the same time as A. The situation is depicted in the below figure
Which of the following is/are true for the given situation.
(a) B covers longer distance but with a lower speed.
(b) A covers shorter distance with a higher speed
(c) A covers shorter distance with a lower speed.
(d) B covers longer distance with a higher speed.
Answer
Answer (d)
Question 9 Crossword Puzzle Across
3. The movement of a snail on the ground is a _________ motion
6. SI stands for International _____ of Unit .
7. ____ and Mutthi was used as units of small measurement in ancient India Down
1. the strings of the guiter is a example of _________ motion
2. the whirling of stone tied with a thread is a example of _______ motion
4. When the object does not move with time ,it is said to be at _____
5. when the object moves with time,it is said to be at _____
Question 10
Sam is travelling in a train. He observe that the trees near the track appears to be moving whereas co-passengers appear to be stationary. He is curious to know the reason. Help him out
Answer
The position of trees is changing with respect to us while of that co-passengers is not changing with respect to use. So trees appears to be moving and co-passengers appear to be stationary
Question 11
You are provided three scales A, B and C as shown in below figure to measure a length of 10 cm
For the correct measurement of the length you will use the scale
(a) A only
(b) B only.
(c) C only.
(d) Any of the three scales. Question 12
Select the odd one out
a. Motion of moon around the earth
b. Motion of stone tied to a thread and whirling around
c. Motion of the person sitting on merry go round
d. Motion of a man walking on the straight road Question 13
Which of the below motion is a periodic motion
a. Motion of a ant
b. A swing in a playground
c. Simple pendulum
d. A flying bird Question 14
Which of the below are in motion
a. A table
b. A house
c. A fish moving in water
d. A moving train Question 15
Speed is defined as
$speed = \frac {distance}{time}$
Which of the below have highest speed?
a. Distance =2 m , time= 2 sec
b. Distance =5 m , time= 3 sec
c. Distance =10 m , time= 4 sec
d. Distance =3 m , time= 6 sec Question 16
Which of the below have lowest speed?
a. Distance =2 m , time= 2 sec
b. Distance =5 m , time= 3 sec
c. Distance =10 m , time= 4 sec
d. Distance =3 m , time= 6 sec Question 17
Which among the following is the smallest unit of length
a. m
b. km
c. mm
d. cm
