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A lamp is being used to evaporate water from a wet rag. What form of energy is the lamp using for evaporation?
campfire
thermal
electrical
light energy is transformed into electrical energy and then back to light energy
A power source
bounce back at an upward angle
chemical, electrical, sound
electrical energy is transformed into mechanical energy
What kind of energy does a lamp use to produce light?
campfire
thermal
electrical
light energy is transformed into electrical energy and then back to light energy
A power source
bounce back at an upward angle
chemical, electrical, sound
electrical energy is transformed into mechanical energy
A circuit consists of a light bulb, a buzzer, a switch and wires. What else does the circuit NEED in order to work?
campfire
thermal
electrical
light energy is transformed into electrical energy and then back to light energy
A power source
bounce back at an upward angle
chemical, electrical, sound
electrical energy is transformed into mechanical energy
What main kind of energy is used in a battery powered radio?
campfire
thermal
electrical
light energy is transformed into electrical energy and then back to light energy
A power source
bounce back at an upward angle
chemical, electrical, sound
electrical energy is transformed into mechanical energy
In solar powered traffic sign,
campfire
thermal
electrical
light energy is transformed into electrical energy and then back to light energy
A power source
bounce back at an upward angle
chemical, electrical, sound
electrical energy is transformed into mechanical energy
If light ray is traveling toward a mirror that is tilted up, the light will
campfire
thermal
electrical
light energy is transformed into electrical energy and then back to light energy
A power source
bounce back at an upward angle
chemical, electrical, sound
electrical energy is transformed into mechanical energy
Which of the following does NOT use mechanical energy to perform its function?
campfire
thermal
electrical
light energy is transformed into electrical energy and then back to light energy
A power source
bounce back at an upward angle
chemical, electrical, sound
electrical energy is transformed into mechanical energy
In an electrical fan,
campfire
thermal
electrical
light energy is transformed into electrical energy and then back to light energy
A power source
bounce back at an upward angle
chemical, electrical, sound
electrical energy is transformed into mechanical energy
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