Worksheet: Measurement of Length and Motion - 2 | Science for Class 6 PDF Download

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Q1: Fill in the blanks:

(i) Measurement is the comparison of an unknown quantity with some              quantity.

(ii) 1 km =            m.

(iii) Standard unit of length is              .

(iv) The length of curved line can be measured using a               .

(v)              is the distance between two points or ends of an object.

(vi)                   means the change in position of an object with time.

Q2: True/False

(i) The choice of device used for the measurement depends on the type of measurement to be made. 

(ii) Our senses are reliable for accurate measurement. 

(iii) 1m = 100cm. 

(iv) 5km = 5000cm. 

(v) Motion of a child on a swing is periodic motion. 

(vi) Motion of a wheel of a cycle is random motion. 

Q3: Which measuring device can be used to measure the girth of a tree?

Q4: Write the type of motion in which a body moves along a straight path.

Q5: Which unit of length is used to measure a large distance?

Q6: Write one example of circular motion.

Q7: Write one example of rectilinear motion.

Q8: Write one example of periodic motion.

Q9: Name the type of motion in which a body moves along a curved path.

Q10: Name the type of motion in which motion repeats after equal time interval.

Q11: The distance between Ria’s house and temple is 1340 m. Express this distance in kilometre.

Q12: Find the length of square in mm.

Q13: Define ‘unit’.

Q14: When object is said to be in rest?

Q15: What do you understand by ‘measurement’?

Q16: What is the common in between hand span, pace, angul and fist?

Q17: When object is said to be in motion?

Q18: Why is the hand span not considered as a reliable unit for measuring the length?

Q19: What do you understand by standard unit of measurement?

Q20: Assertion and Reason Questions
(i) Assertion (A): Motion of moon around the earth is a circular motion.
Reason (R): In a circular motion, the distance of object from a fixed point remains the same.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.

(ii) Assertion (A): In ancient times bullock cart was used as a means of transport.
Reason (R): Aeroplanes were developed only in 1800 AD.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.

(iii) Assertion (A): The motion of a ball rolling on the ground is nothing but a rectilinear motion.
Reason (R): The motion of ball rolling on the ground is a combination of different types of motion.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.

You can access the solutions to this worksheet here.