B. VERY SHORT-ANSWER QUESTIONS: Give one-word answers.
1. A quantity that can be measured is called a
quantity.
2. If you are using the SI system, you will always measure length in metres. True or false?
3. In your daily life, it is essential to measure everything very accurately. True or false?
4. In which year did we start using metric measures in India?
5. The standard units of mass, length and time are the same in the MKS and the SI systems.
True or false?
6. While measuring length using a metre scale, the position of the eye does not affect the
measurement. True or false?
7. A body moves as a whole; all parts of the body move through the same distance in the same
time.' What type of motion is this?
8. What kind of movement does the earth have about its axis?
9. An object moves to-and-fro about its position of rest. What type of motion is this?
10. Which kind of motion produces sound?
11. Give an example of an object that has more than one kind of motion at the same time.
Answers
Answered by
5
10
Longitudinal wave and guitar strings
Answered by
6
Explanation:
1)Physical quantity
2)True
3)True
4)December 1956
5)True
6)False
7)Translatory motion
8)The Earth turns(rotation around the polar axis)
9)Periodic motion
10)Vibrational motion
11)An example are:
1)The wheel of a car moving exhibits circular and rectilinear motion Simultaneously.
2)The earth moving on its orbit show circular and gravitational motion at the same time.
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