The length of the outstretched arms is called
Important Questions on Practice Assignment (Based on Chapter 10 — Motion and Measurement of Distances)
Choose the correct word from the bracket and fill in the blank.
[periodic, rest, transport, rectilinear, standard]
_____ simply means, to carry people or goods from one place to another by means of a vehicle, aircraft or ship.
Fill in the blank with a suitable word from the given list. List: [periodic, rest, transport, rectilinear, standard]
The _____ units are needed to measure physical quantities.
If the position of body does not change with respect to time and surroundings, the body is said to be at _____.
[periodic, rest, transport, rectilinear, standard, curvilinear, oscillatory, circular]
When an object moves in a straight line, it is said to be in _____ motion.
The motion which repeats itself after a certain fixed period of time, is called _____ motion.
| Column A | Column B |
|
1. The distance between the tip of the thumb and the tip of the little finger of a fully stretched hand. |
(a)Vibration |
| 2. A system has seven most common basic standard units used in our daily life. |
(b) National Physical Laboratory(NFL), New Delhi |
| 3. The authority is responsible for maintaining the national standards for all basic units for measurement in India. |
(c) Handspan |
| 4. The to-and-fro motion of an object about its mean position. |
(d) Sl system |
| 5. The fast or rapid oscillatory motion. |
(e) Oscillatory motion |
