Question

what energy transfer occurs when a solar panel uses sunlight to provide power to a house?
radiant energy is converted to electrical energy
radiant energy is converted to mechanical energy
thermal energy is converted to electrical energy
thermal energy is converted to mechanical energy
question 8(multiple choice worth 4 points)
(04.04 hc)
scientific research shows that our global climate is changing. the global sea level is rising and ocean temperatures are increasing
which of the following best predicts an outcome of this global climate change in a coastal ecosystem?
the change in temperature will cause organisms that are sensitive to cold to migrate to the area.
the milder temperature will encourage a growth in the diversity of sea life.
the loss of habitat will lead to endangering or extinction of species living there.
the rising sea level will provide wider during drought to species living there.

Explanation:

First Question

Solar panels work by taking in sunlight (which is radiant energy) and converting it into electrical energy that can be used in a house. Mechanical energy is related to movement and thermal energy is related to heat. Since solar panels don't produce mechanical energy from sunlight and sunlight is not thermal energy in this context (it's radiant), the correct transfer is radiant to electrical.

As the global sea - level rises and ocean temperatures increase in a coastal ecosystem:

• Organisms sensitive to cold would not migrate to an area with increasing temperatures.
• Increasing temperatures and rising sea - levels are more likely to disrupt habitats rather than encourage a growth in sea - life diversity.
• Rising sea - levels do not provide "wider" (in a beneficial sense) during drought. Instead, the loss of coastal habitat (due to rising sea - levels and changing temperatures) is a major threat. Species may lose their living spaces, food sources etc., which can lead to endangerment or extinction.

Answer:

Radiant energy is converted to electrical energy

Second Question