Question

What is the energy conversion that takes place when two children are playing on a see-saw

Answer 1

Answer:

A) kinetic energy→ heat energy→ gravitational potential energy

B) chemical potential energy→ kinetic energy→ gravitational potential energy

C) gravitational potential energy→ kinetic energy→ chemical potential energy

D) gravitational potential energy→ kinetic energy→ gravitational potential energy

Answer 2

                                                                                                                                   

when one child applies effort the other becomes load and when the second child applies effort the first becomes load. So load and effort keep on changing.

                                                                                                                                   

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