1. ___ it deals with the study of internal Earth.

2. ____its an instrument used to measure atmospheric pressure.

3. the negative acceleration is called____.

4. two unlike parallel forces of the same magnitude but not along the same line is called ___.

5. _____it is a point in the body where the weight of the body appears to act vertically downward.

6. if an object moves along a circular path, its motion is called ____.

7. the force between two sliding objects that opposes their relative motion is called____.

8. ___ is anything which has mass and takes up space.

9. ____ force is that force that keeps a body to move in a circle.

10. the increase in Volume of a body on heating is called ____?

11. a quantity which can ve derived from base quantities is known as___.

13. if the stress can produce a Change in volume of a body its called ____?

14. A collection of two or more objects is called a ____.

15. a quantity which is completely specified by its magnitude is called the ____ Quantity.

16. coal ,oil and natural gas are termed as ___.

17. A line about which all particles of a rigid body rotates is called ____.

18. the unit of base quantity is known as?

19. the ratio of stress and strain is called_____.

20. _____ the applied force that brings a change in length , volume or shape of body.