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Which is an example of a single energy transformation?
A toaster converts electrical to thermal energy
A match converts mechanical to thermal to electromagnetic
A biker converts chemical to mechanical to thermal
A car converts chemical to thermal to mechanical
What is an example of multiple energy transformations?
Your body transforms chemical to thermal
Your body transforms chemical to mechanical
a flashlight converts chemical energy in batteries to electrical to electromagnetic energy in light
a phone converts electrical to electromagnetic
The hand generator works by turning the handle which lights up the bulb. What energy transformation occurs as the handle is turned?
Thermal to electrical
Electrical to mechanical
Mechanical to electrical to light
Light to electrical
Maria’s father started a fire in the fireplace. He crumpled some paper, lit a match, and soon the logs in the fireplace were burning. In this case, the stored chemical energy in the logs was changed into
heat and light energy.
electrical and heat energy.
The light bulb converts electrical energy into light and _________.
Which of the following statements most accurately describes how a ipod is able to play music after it has been plugged in?
The ipod is able to play music because it is using up the electrical energy from the wall.
The electrical energy is transferred from the wall allowing the ipod to make sound energy as music.
The ipod is able to play music because the outlet is creating electrical energy that is transformed to sound energy.
The electrical energy from the outlet is transformed to chemical energy and then to sound and light energy when the ipod is used to play music.
A teacher rubbed a match against a piece of sandpaper. The match started to burn. Which statement best describes the energy changes that occurred?
The chemical energy stored in the match changed to thermal energy and light energy.
The thermal energy stored in the match changed to light energy and chemical energy.
The light energy and thermal energy stored in the match changed to mechanical energy.
The light energy and thermal energy stored in the match changed to chemical energy.