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.
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?