1. Physical Science “Energy”

2. Amplitude The maximum distance a wave vibrates up or down from equilibrium. Click here to reveal the definition!

3. Angle of Incidence The angle an outgoing wave of light makes with the normal. Click here to reveal the definition!

4. Angle of Reflection The angle an outgoing wave of light makes with the normal. Click here to reveal the definition!

5. Chemical Energy The energy bound up in bonds between atoms in molecules. Click here to reveal the definition!

6. Compression The moment when the particles in a wave push together. Click here to reveal the definition!

7. Compressional Wave A wave in which the vibrations move parallel to the direction in which the wave moves. Click here to reveal the definition!

8. Conduction A form of heat transfer that involves direct contact. Click here to reveal the definition!

9. Conservation of Energy A scientific law that states that energy is neither created nor destroyed in any system but simply changes form. Click here to reveal the definition!

10. Convection The movement of fluid masses from areas of high density by low density due to temperature or salinity differences. Click here to reveal the definition!

11. Crest The high point of a wave. Click here to reveal the definition!

12. Current Electricity Electrons flowing from a source of electrons through a conducting medium such as metal wire. Click here to reveal the definition!

13. Electrical Energy The movement of electrons from one place to another, either in the form of static electricity or current electricity. Click here to reveal the definition!

14. Electromagnetic Spectrum The range of electromagnetic radiation, from radio waves to gamma rays. Click here to reveal the definition!

15. Electromagnetic Wave A wave that does not need a medium in which to travel. Click here to reveal the definition!

16. Energy Anything that has the ability to cause a change in the universe, such as a change in the position, speed, direction, or temperature of an object. Click here to reveal the definition!

17. Equilibrium Point The fixed position about which a wave oscillates in a repeating pattern. Click here to reveal the definition!

18. Frequency The number of waves passing a point in a specific period of time, usually per second. Click here to reveal the definition!

19. Heat Energy The average energy of motion of atoms and molecules. Click here to reveal the definition!

20. Joule The unit of measuring work; 1J=1N x 1m Click here to reveal the definition!

21. Kinetic Energy The energy of moving atoms, particles, or objects. Click here to reveal the definition!

22. Mechanical Energy The energy of large moving object. Click here to reveal the definition!

23. Normal An imaginary line perpendicular to the surface of a reflecting surface. Click here to reveal the definition!

24. Nuclear Energy The energy released when the nuclei of atoms are split or fused. Click here to reveal the definition!

25. Parallel Circuit An electrical circuit with at least two paths through which the current can flow. Click here to reveal the definition!

26. Potential Energy Stored energy that can be used to do work. Click here to reveal the definition!

27. Power A change in energy or the performance of work over time. Click here to reveal the definition!

28. Radiation The movement of heat energy through electromagnetic radiation (infrared, visible light, ultraviolet, and so on) Click here to reveal the definition!

29. Rarefaction The moment when the particles of a wave pull apart. Click here to reveal the definition!

30. Resistor An object that turns current electricity into another form of energy, such as heat, light, or sound. Click here to reveal the definition!

31. Series Circuit An electrical circuit with only a single path for the current. Click here to reveal the definition!

32. Simple Machine A device such as the lever, inclined plane, or pulley, which requires only the application of a single force to work. Click here to reveal the definition!

33. Static Electricity A positive or negative electrical charge on an object, capable of causing attraction, repulsion, or an electrical spark. Click here to reveal the definition!

34. Transverse Wave A wave that oscillates perpendicular to the direction of travel. Click here to reveal the definition!

35. Trough The low point of a wave. Click here to reveal the definition!

36. Watt The unit of power in the SI system, equal to one joule of work in one second. Click here to reveal the definition!

37. Wave Cycle A complete oscillation of a wave. Click here to reveal the definition!

38. Wavelength The smallest distance between identical parts of a continuous wave; for example, the distance between consecutive crests. Click here to reveal the definition!

39. Work The distance an object moves multiplied by the force that moves it. Click here to reveal the definition!