English
Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 9

Rulers, measuring tapes and metre scales are used to measure

Advertisements
Advertisements

Question

Rulers, measuring tapes and metre scales are used to measure ______

Options

  • mass

  • weight

  • time

  • length

MCQ
Fill in the Blanks
Advertisements

Solution

Rulers, measuring tapes and metre scales are used to measure Length

shaalaa.com
  Is there an error in this question or solution?
Chapter 1: Measurement - Exercise [Page 11]

APPEARS IN

Samacheer Kalvi Science [English] Class 9 TN Board
Chapter 1 Measurement
Exercise | Q I. 2. | Page 11

RELATED QUESTIONS

The farthest objects in our Universe discovered by modern astronomers are so distant that light emitted by them takes billions of years to reach the Earth. These objects (known as quasars) have many puzzling features, which have not yet been satisfactorily explained. What is the distance in km of a quasar from which light takes 3.0 billion years to reach us?


Ten millimetre makes one centimetre.


While measuring the length of a sharpened pencil, the reading of the scale at one end is 2.0 cm and at the other end is 12.1 cm. What is the length of the pencil?


Guess whose tail is the longest. Now measure the tails. How good is your guess?


There are two beautiful lakes near a village. People come for boating and picnics in both the lakes. The village Panchayat is worried that with the noise of the boats the birds will stop coming. The Panchayat wants motorboats in only one lake. The other lake will be saved for the birds to make their nests.

  • How many kilometers long is the actual boundary of lake B?

There are two beautiful lakes near a village. People come for boating and picnics in both the lakes. The village Panchayat is worried that with the noise of the boats the birds will stop coming. The Panchayat wants motorboats in only one lake. The other lake will be saved for the birds to make their nests.

  • Find the area of lake B on the drawing in square cm. What is its actual area in square km?

Give some examples of larger length measures.


What is the unit of measurements of very small lengths?


  1. The earth-moon distance is about 60 earth radius. What will be the diameter of the earth (approximately in degrees) as seen from the moon?
  2. Moon is seen to be of (½)°diameter from the earth. What must be the relative size compared to the earth?
  3. From parallax measurement, the sun is found to be at a distance of about 400 times the earth-moon distance. Estimate the ratio of sun-earth diameters.

Which instruments are used to measure very small distances at the atomic scale?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×