Measurement and Motion :Quest Time
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Answer the following question in one word
1. Name one object that shows multiple motions?
Ans: The Earth - Rotatory and translator motion
Drilling - Rotatory and downward translator motion
A ball moving along the ground- Rotatory and Rectilinear motion
2. How will you measure length in SI system?
Ans: Using meter scale
3. What is the quantity that can be measured?
Ans: Physical quantity like mass, length and Time
4. What type of motion body moves as a whole?
Ans: Translatory motion
5.Which kind of motion produce sound?
Ans: Vibratory motion
6. What types of motion is noticed in the pendulum of clock and swing?
Ans: Oscillatory motion and periodic
7. Falling of apple from tree is what types of motion?
Ans: Rectilinear motion.
8. Discovery of what made transport easy?
Ans: Wheel
9. Motion in which the distance from the axis remain same?
Ans: Circular motion
10. To and fro motion of a body about a fix point is example of what type of motion?
Ans: Oscillatory
11. What is motion?
Ans: The change in the position of an object with time is called motion.
12. What is the S.I unit of length?
Ans: The S.I unit of length is metre which is written as 'm'.
13. What is measurement?
Ans: The comparison of an unknown quantity with a standard known quantity is known as measurement.
14. What is unit?
Ans: A quantity adopted as a standard of measurements of a physical quantity is called a unit.
15. While measuring the length of a knitting needle, the reading of the scale at one end is 3.0 cm and on the other end is 33.1 cm. What is the length of needle?
Ans: The length of the needle = (33.1-3.0) cm = 30.1 cm
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