Review Energy-3

Incandescent light bulbs use electrical energy to produce light energy, but it is not a direct transformation. Instead, the electrical energy is changed to a different form of energy, and then to light.


Electricity → ? → Light


What form of energy does the "?" represent?

  1. Sound

    No. Electrical energy can be transformed into sound energy, but that would not cause the bulb to light.
  2. Thermal

    Yes. As electrical energy flows through the filament, resistance changes the electrical energy into thermal energy. When the filament gets hot enough, some of the thermal energy is converted into light.
  3. Radiation

    No. The electrical energy is not transformed into radiation.
  4. Friction

    No. The electrical energy is not transformed into friction.



Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.

Florida


SC.2.P.10.1 Discuss that people use electricity or other forms of energy to cook their food, cool or warm their homes, and power their cars.
Review Energy-3 practice

SC.5.P.10.4 Investigate and explain that electrical energy can be transformed into heat, light, and sound energy, as well as the energy of motion.
Introduction to the LED video, checked
Light a Bulb with a Balloon video, checked
Electricity video, free, Updated
Review Energy-3 practice

SC.7.P.11.2 Investigate and describe the transformation of energy.
The Rollback Can video, free, Updated
High Bounce video, checked
Review Energy-3 practice

Utah


UT.3.V.2.c Predict, measure, and graph the temperature changes produced by a variety of mechanical machines and electrical devices while they are operating.
Review Energy-3 practice

UT.8.IV.4.b Trace the conversion of energy from one form of energy to another (e.g., light to chemical to mechanical).
Measuring Kinetic and Potential Energy video, checked
The Rollback Can video, free, Updated
High Bounce video, checked

NGSS


4-PS3-4 Apply scientific ideas to design, test, and refine a device that converts energy from one form to another.
Solar Power video, checked
The Rollback Can video, free, Updated
A Grass Whistle video, checked
High Bounce video, checked
Bottle Tones, part 1 video, checked
Measuring Calories video, ClosedCaptions, checked
Bottle Tones, part 2 video, checked
Why Things Go Bang video
Why We Sweat video, checked
Sunglass Science: Birefringence video, free, Updated
Sunglass Science: Polarized Light video, free, Updated
Noisy String video, checked
Spoon Bells video, checked
Ice Cream Science video, checked
Making a Screamer video, free, Updated
Measuring Kinetic and Potential Energy video, checked
The Slow Race video, free, ClosedCaptions, Updated
The Singing Glass video, checked
Whistle Stick video, text page, blog, free, checked
Simple Circuits video, checked
Sunlight, Energy, and Crayons text page, free
Review Energy-5 quest
Review Energy-3 practice