Which of the given forces act on a toy car when we move it on the ground with our hand ?
Only (i) and (ii)
Only (i) and (iii)
Only (i), (ii) and (iii)
Only (ii) and (iv)
Friction, Gravity and Reaction of ground work on a toy car moving on ground. Potential Energy is not a type of force.
Which of the following process / processes release heat ? (i) condensation (ii) vaporisation (iii) freezing (iv) melting
(a) only (i) (b) only (iv) (c) (i) and (iii) (d) (ii) and (iv)