If force of 1 N moves an object through 1 m, then work done is
A) 2 J
B) 1 J
C) 3 J
D) 4 J
Correct Answer:
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Q6: Average power of all activities of our
Q7: Change in G.P.E can be written as
A)mgh
B)mh
C)mg
D)gh
Q8: Efficiency of car engine is only about
A)10%
B)20%
C)30%
D)80%
Q9: Work is defined as
A)F × S
B)F ×
Q10: Energy transferred to stone of weight 10
Q12: SI units for energy and work are
A)Joules
Q13: If the ball is thrown upwards, the
Q14: 1 W is equal to {{}}
A)10 J
Q15: Work done by force of gravity on
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