Question

Which of the following best illustrates the law of corkervation of energy?

A
The work done stretching a spring is transformed into stored energy in the spring
B
Leak-proof batteries are able to store chemical energy for long periods of time.
С
Ajogger conserves her energy by reducing the rate at which she jogs.
D
Ice water changes into liquid water when it absorbs heat energy.

Answer 1

A . The work done stretching a spring is transformed into stored energy in the spring

Step-by-step explanation:

The work done stretching a spring is transformed into stored energy in the spring is clear indication of the law of conservation of energy.

The law of conservation of energy states that "energy is neither created nor destroyed but transformed from one form to another".

• In this problem, mechanical energy is used to stretch the spring.
• The mechanical energy is converted to stored potential energy.

This is an energy transformation process.