Question

(11) Kinetic Energy is:
(a) K.E-2mv
(b) K.E=mv (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) 43
(b) 40J
(c) 400J
(d) 40003
(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

Answer:

si unit of energy is Newton