CK-12 Physical Science - For Middle School

25.3. Generating and Using Electricity http://www.ck12.org FIGURE 25.14 Whether a transformer increases or de- creases voltage d ...

http://www.ck12.org Chapter 25. Electromagnetism Apply Concepts Create a sketch to show how a coil of wire in a circuit and a b ...

25.4. References http://www.ck12.org 25.4 References 1.. http://commons.wikimedia.org/wiki/File:HansChristian%C3%98rsted_daguerr ...

http://www.ck12.org Chapter 26. Glossary CHAPTER 26 Glossary Chapter Outline 26.1 A 26.2 B 26.3 C 26.4 D 26.5 E 26.6 F 26.7 G 26 ...

26.1. A http://www.ck12.org 26.1 A absorption Interaction of light with matter in which the particles of matter absorb light ene ...

http://www.ck12.org Chapter 26. Glossary 26.2 B base Ionic compound that produces negative hydroxide ions (OH−) when dissolved i ...

26.3. C http://www.ck12.org 26.3 C carbohydrate Biochemical compound such as sugar, starch, or cellulose that contains oxygen in ...

http://www.ck12.org Chapter 26. Glossary concentration Number of particles of a substance in a given volume. condensation Proces ...

26.4. D http://www.ck12.org 26.4 D decibel (dB) Unit of intensity of sound. decomposition reaction Chemical reaction in which on ...

http://www.ck12.org Chapter 26. Glossary 26.5 E efficiency Measure of how well a machine reduces friction; calculated as the per ...

26.5. E http://www.ck12.org electron Negatively charged atomic particle outside the nucleus of an atom. electron cloud Area surr ...

http://www.ck12.org Chapter 26. Glossary 26.6 F Faraday’s law Law stating that a changing magnetic field produces an electric cu ...

26.7. G http://www.ck12.org 26.7 G gamma ray Type of wave in the electromagnetic spectrum that has the shortest wavelength and g ...

http://www.ck12.org Chapter 26. Glossary 26.8 H half-life Length of time it takes for half of a given amount of a radioisotope t ...

26.9. I http://www.ck12.org 26.9 I image Copy of an object that is formed by reflected or refracted light. incandescence Product ...

http://www.ck12.org Chapter 26. Glossary 26.10 J joule (J) SI unit for work, equal to the amount of work that is done when 1 new ...

26.11. K http://www.ck12.org 26.11 K Kelvin scale SI scale for measuring temperature in which the freezing point of water is 273 ...

http://www.ck12.org Chapter 26. Glossary 26.12 L laser Device that produces a very focused beam of light of just one wavelength ...

26.13. M http://www.ck12.org 26.13 M machine Any device that makes work easier by changing a force. magnet Object that attracts ...

http://www.ck12.org Chapter 26. Glossary microwave Wave in the electromagnetic spectrum that falls at the upper range of radio w ...