Measurement Online Test 6th Science Lesson 1 Questions in English

A ruler or scale, used now a days to measure length was invented by a William Bedwell in 16th century.

You can also use your pulse to measure ‘rough’ time. Count the number of pulses. That can tell you the time elapsed. In your normal speed of speaking, say “one little second”; “two little seconds” to count the passage of time.

A standard metre rod made of an alloy of platinum and iridium is placed at the Bureau of weights and measures in Paris.

We use beam balances to measure mass. A beam balance works by comparing the mass of an object to that of known mass (called a standard mass).

An odometer is a device used for indicating distance travelled by an automobile.

One kilogram is equal to the mass of a certain bar of platinum-iridium alloy that has been kept since 1889 at the International Bureau of Weights and Measures in Sèvres, France.

The metric system or standard set of units was created by the French in 1790.

Gases expand to fill the container into which they are placed. When you compress, a gas you can make the same gas to occupy lesser space. (as in LPG gas cylinder). Therefore it is not easy to talk about the volume of gas in the same way as a volume of a stone or a liquid.

In earlier days people used sand clock and sundial to measure the passage of time during the day. The shadow cast by a stick can be used to estimate time. One can also use a vessel with a small hole for computing time. Take a vessel or bottle with a small hole in it and fill it with water. The time taken for water to drain can also be used as a measuring device.

Bigger weights are measured in tonne or Metric Tonne. 1000 milligram = 1 gram 1000 gram - 1 kilogram 1000 kilogram - 1 tonne.

The weight is directly proportional to the mass on earths surface. On moon where the gravitational force is lesser than earth, the weight will reduce but the mass will remain same

Question 20 Explanation: Mass is the measure of the amount of matter in an object. Weight is the gravitational pull experienced by the mass.