Question

5. The sun, the bulb and street light give out invisible light known as
6. Most things around us are visible because they light reaching their surface.
7. The direction of the flow of electric current is
8. The change in colour of a solution is an example of
9. Protons and are tightly held in nucleus.
10. An is a device used to detect whether a substance carries charge or not.
11. Sound waves between frequency
and can be heard by human ears.
12. The speed of sound in water is
13. Friction always opposes
14. Friction is caused by
15. To pierce a nail in a wooden board, the end of the nail should be very
16. Force applied on a larger area generate more
17. The push or pull on an object is called
18. Force can change the and
of an object
19. Force exerted by electrostatic charge is called
20. Gravitational pull from place to place.
21. The unit of force is
22. Now a days
barometers are preferred
23. Pressure in liquids depends upon the of the liquid and the of the liquid.
24. is used to measure pressure.
25. Brakes on cars will work best if the friction between the brake shoes and wheels is
reduced. True or false​

Answer 1

Answer:

jjshshsbsnsnsnnjshszyzhzbzslbsghsbsnsnsnn zn

Answer 2

Answer:

1reflection 2conwax lenchdtdyrdyyddufxyxyhkhlhlxxgxhlxugkszhztgjdyyoyoydufczgdkhdgkdgldgdypdufgduridndjdgrjnekephdyksojdkdhrjrurbrjtoth ttktotp

Explanation:

b