Which of the following energy forms is measured in Calorie?
Heat energy
Light energy
Chemical energy
Sound energy
Which of the following energy change involves frcitional force ?
(a) chemical energy to heat energy
(b) kinetic energy to heat energy
(c) potential energy to sound energy
(d) chemical energy to kinetic energy
Which of the following types of energy can be used to decompose water into its elements ? (a) heat energy (b) light energy (c) chemical energy (d) electrical energy
Which of the following devices transforms light energy into chemical energy?