Question

● Multiple choice questions ●
⭐️1) The unit of energy in S.I. system is :- [erg ; watt ; horse power ; joule]
⭐️2) One watt is equal to :-
[ 1erg/second ; 1g-cm/second ; 1kg-m/second ; 1 Joule/second ]
⭐️3) In case of negative work, the angle between the force and displacement is :- [0° ; 45° ; 90° ; 180°]
⭐️4) In a tug of war, work done by the losing team is :- [positive ; negative ; zero ; none of these]
⭐️5) Which one of the following is not the unit of energy ?
[Kilowatt ; Joule ; Newton-metre ; Kilowatt-hour]
⭐️6) In case of a freely falling body under gravity, total mechanical energy
[ increases ; decreases ; remains constant ; first increases then decreases.]



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Answer 1

☆☆ AS-SALAMUALAIKUM ☆☆

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YOUR ANSWER IS IN THE ATTACHMENT

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Answer 2

She already gave answer