Question

(11) Kinetic Energy is:
(a) K.E=2mv
(b) K.E-mv2 (c) K.E=2mv? (d) K.E = 1\2 mv
(12) SI unit of Energy is:
(a) watt
(b)Joule
(c)Newton
(d) Coulomb
(13) A bowler during playing cricket throws a ball of mass 200 g with a velocity of 20ms. It's
K.E will be:
(a) 4J
(b) 400
(c) 400
(d) 4000J
(14) What will be K.E of a body if its velocity is doubled?
(a) Double
(b) Four time (c) Eight times (d) Half
(15) Stored water possesses potential energy due to:
(a)Force
(b) Work
(c) Kinetic energy
(d) Height
(16) The energy present in the stretched bow is called:
(a) Elastic Potential Energy
(b) gravitational potential energy
(c) Kinetic energy
(d) potential energy
(17) Electric generators are run:
(a)Hydropower
(b) Thermal (c) Nuclear
(d) All above
(18) The energy stored in coal is:
(a)Hydropower
(b) Thermal (c) Chemical (d) Heat
(19) Fossil fuels are:
(a)Force
(b) renewable sources
(c) non-renewable sources
(d) Biomass​

Answer 1

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Answer 2

Answer:

11). K.E = 1/2 mv

12). S.I unit of energy is joule.

13). 4000 J

14). If velocity is doubled then kinetic energy is four times.

15). due to kinetic energy.

16). elastic potential energy is the correct option.

17). All the above

18). energy stored in coal is heat.

19). Fossil fuels are non - renewable resources.

Explanation:

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