Originally Posted by Sabir Basheer

@ Members, please share 2 remaining science questions.
Fourteen are the following:
1) Electricity is produced at dam by converting kinetic to electrical energy.
2) Steam engine uses steam to compress and expand piston.
3) Dynamo of cycle uses two poles of magnet.
4) Temporary magnet can be made by placing near permanent magnet.
5) A lever of 100 cm length. Fulcrum is placed at 20 cm from one end and 100 kg weight. What weight required at other end to balance.
6) Thrust of aircraft jet to overcome drag.
7) If there were no friction, things would keep moving forever.
8) Volta battery produces electricity by converting chemical to electric.
9) Most harmful rays at atomic explosion
10) Sound waves slower than EM waves.
11) How does boat keep floating.
12) Fish survive under frozen waters.
13) Car battery current flows from + to - or - to + terminal?
14) Vacuum cleaner air pressure inside it is lower than the outside pressure.