Welcome to your Physics class 9 Chapter 1
1. A chips 4 is 4.5 cm long and 5.9 cm wide it's area upto significant figures will be
2. A world wide system of measurements in which the units of base quantities were introduced is called:
3. . Length,mass, electric current, time, intensity of light and amount of substance are examples of
5. How many branches of physics
6. What is the international unit of Mass
7. Scalar quantities have ................ And suitable unit.
8. Which one is vector quantities
9. . Distance is a .................... quantities
10. How many parts of mechanics
12. Newton's first law of motion is also known as law of
13. Quantity of matter contained in body is called...
14. Quantity of motion contained in a body is called
15. . Weight of a body can be measured using a spring balance, it differs from place to place because variation........
16. Which statement is true for limiting firictional force.
17. When did Newton write the first law of motion
