Question

A. Fill in the blank spaces :
(i) In human body, the chemical energy of food
first changes into.....................
energy.
(mechanical/heat)
(ii) The energy released during nuclear
disintegration is in the form of........................
energy only.
(heat/sound)
(iii)No work is done when...............
takes places at right angles to the direction
of applied force.(displacement/acceleration)
(iv) the atmospheric pressure can support ...................vertical height of water .(10.34m /13.40m).​

Answer 1

$\large{\underline{\purple{\sf{Fill\:ups:}}}}$

1) In human body, the chemical energy of food

first changes into heat energy.

(mechanical/heat)

2) The energy released during nuclear

disintegration is in the form of heat energy only.

(heat/sound)

3)No work is done when displacement takes places at right angles to the direction of applied force.

(displacement/acceleration)

4) the atmospheric pressure can support 10.34m vertical height of water.

(10.34m /13.40m)