Question

7. What are the various energy transformations that occur when
you are riding a bicycle?
8. Does the transfer of energy take place when you push a
huge rock with all your might and fail to move it? Where is
the energy you spend going?

grade 9
science ch.work and energy
need explained answer​

Answer 1

Explanation:

1) The muscular energy of the cyclist is converted into kinetic energy (rotational) of the pedals of the bicycle which is transferred to its wheels. The kinetic energy of the rotation of the wheels is converted into the kinetic energy of the bicycle and the cyclist.

2)Where is the energy you spend going? When we push a huge rock, there is no transfer of muscular energy to the stationary rock. Also, there is no loss of energy because muscular energy is transferred into heat energy, which causes our body to become hot.

Answer 2

Answer:

sry I am confuse In this question