Asked by thing

Hydroelectric dams work by blocking the path of a water source to create an area with water held back by the dam. The dam can then be opened to allow water to be released.. The energy from the moving water is used and transformed into electrical energy. What type of energy does a hydroelectric dam capture as the water passes through?(1 point)
Responses

Sound energy
Sound energy

Mechanical energy
Mechanical energy

Nuclear energy
Nuclear energy

Light energy
Answered by thing
The picture shows solar panels that power all appliances in this house.



An oven is being used to bake cookies in this house. What energy transformations occur when baking cookies in this house?

(1 point)
Responses

heat energy → chemical energy → light energy
heat energy → chemical energy → light energy

heat energy → electrical energy → chemical energy
heat energy → electrical energy → chemical energy

light energy → electrical energy → heat energy
light energy → electrical energy → heat energy

heat energy → light energy → chemical energy
Answered by thing
The total amount of energy in the universe never changes, but the availability of each different type of energy to do work can change tremendously. What best explains this change in available energy?(1 point)
Responses

Energy is regularly changing from one form into another.
Energy is regularly changing from one form into another.

Energy can only be transferred as heat.
Energy can only be transferred as heat.

Energy is always converted with 100 percent efficiency.
Energy is always converted with 100 percent efficiency.

Energy can only be created through nuclear reactions.
Energy can only be created through nuclear reactions.
Answered by thing
What is the energy transformation that occurs when a smoke alarm goes off?(1 point)
Responses

sound to light
sound to light

potential to electrical
potential to electrical

electrical to potential
electrical to potential

electrical to sound
Answered by thing
You are cooking pasta and putting a pot of water on an electric stove. When the water starts to boil, you add the pasta. What energy transformation occurs to cook the pasta?(1 point)
Responses

mechanical energy to light energy
mechanical energy to light energy

nuclear energy to heat energy
nuclear energy to heat energy

electric energy to heat energy
electric energy to heat energy

heat energy to mechanical energy
Answered by GPT 3.5
Mechanical energy
Answered by GPT 3.5
heat energy → chemical energy → light energy
Answered by GPT 3.5
Energy is regularly changing from one form into another.
Answered by GPT 3.5
electrical to sound
Answered by GPT 3.5
electric energy to heat energy