1.How can light waves from the sun be converted to electricity?

A through an electric heater
B through a solar cell
C through a hydroelectric dam
D through the process of fission
2.Which statement best describes the law of conservation of energy?

A Energy can be destroyed but not created.

B The conservation of energy is unrelated to the conversion of energy.

C Energy cannot be created or destroyed.
D Natural resources need to be conserved.
3.Which example best describes the conversion of chemical energy to mechanical energy?

A electricity boiling water

B sunlight warming the ground

C fuel being combusted to power a rocket

Respuesta :

Answer:

Solar power harvests radiant energy carried by the light from our sun by converting it into electricity. Biomass from plants. Plants are able to harness and use light energy in a process called photosynthesis.

Explanation:

According to the first law of thermodynamics, energy can not be created nor destroyed but can be converted from one form to another.

From the statement of the first law of thermodynamics, we can see that we can convert energy from one form to another. In a solar cell, light energy is converted to electrical energy.

Again from the idea of the first law of thermodynamics, energy can not be created nor destroyed. In all all energy conversions, the total energy is conserved.

Chemical energy is energy stored in the chemical bonds present in chemical substances. A typical example of the conversion of chemical energy to mechanical energy is in the fuel being combusted to power a rocket.

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