1. ……… Is used to count even smaller duration of time
2. The SI unit of amount of substance is ……..
3. SI unit of intensity of light is ……….
4. ………. Is used to measure the accurate time of the activity.
5. SI unit for volume is……..
6. Sub multiples of nanometer …….
7. ……….. Is a displacement or difference in the apparent position of an object viewed along two different lines of sight.
8. Your eye must be ………. Above the point where the measurement has to be taken.
9. …….. Is the gravitational pull experienced by matter.
10. Weight is ……… Proportional to the mass on the earth surface.
11. The moon's gravitational pull is……… Of the earth's pull.
12. ……… Is the device used to for indicating distance travelled by an automobile.
13. Scale was invented by…..
14. When there is a change in the position of an object with respect to time then it is called……….
15. …….. Are push or pull by an animate or in animate agency.
16. Forces can be classified into ………. Forces.
17. Wind making a flag flutter is an example for……….
18. Application of force on an object results in……… From near state of rest.
19. Application of force in object results in……….
20. Fast oscillations are referred to as………..
21. The distance travelled by an object in unit time is called………
22. Cheetah is the fastest land animal running at a speed of ………….
23. The term Robot comes from a………. Word.
24. ……….. Are robots scaled down to microscopic size in order to put them into very small spaces to perform a function.
25. ………. Is an energy that raises the temperature of a thing by causing the molecules in that thing to move faster.
27. The measurement of warmness or coldness of a substance is known as……..
28. The point at which the water boils and temperature becomes stable is called……..
29. The room temperature of water is approximately…………
30. When we heat water its temperature raises, and it boils at……..
31. If we cool the water, it freezes at……
32. The coldest temperature in the world was measured in………
33. Two objects are said to be ….. … Contact if they can exchange heat energy.
34. The change in length / area or volume (due to contraction or expansion) is ………. Related to temperature exchange.
35. The expansion of a substance on heating is called………… Expansion of that substance.
36. The expansion in length is called………. Expansion.
37. The expansion in volume is called…….. Expansion.
38. Glassware used in kitchen and laboratory or generally made up of……… Glass.
39. The materials which allow electric charges to pass through them are called………
40. Natural magnets are used for finding direction. They are also called ………..
41. The attractive force ofbthe magnet is very large near the two ends. These two ends are called it's………….
42. People who made marina's compass for the first time………
43. Magnets lost their properties when they are……..
44. A magnet always has …….. Poles
45. Mariner's compass is used to find the……
46. Maximum iron fillings stick in the middle of a bore magnet when it is brought near them.
47. When an object is heated, the molecules that make up the object…….
48. The device which converts chemical energy into electrical energy is……..
49. …….. Is a good conductor.
50. The long perpendicular line in the electrical symbol represents its………
