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Energy

Energy. Energy = ______________________ Waves carry energy from one place to another Light and sound both move in Waves. Characteristics of Waves. Crest - ____________________ Trough - ____________________ _____________ = distance from crest to crest Amplitude = Height of the wave

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Energy

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  1. Energy • Energy = ______________________ • Waves carry energy from one place to another • Light and sound both move in Waves

  2. Characteristics of Waves • Crest - ____________________ • Trough - ____________________ • _____________= distance from crest to crest • Amplitude = Height of the wave • Frequency = ______________________

  3. Wave Diagram

  4. Light • Light - form of energy that travels in waves • light travels in _____________= RAYS • Beam ___________________________________ • Speed of Light = 186,282 miles/ sec

  5. Light • Visible light = light we see • _______________ • red • orange • yellow • green • blue • indigo • violet

  6. Light cont. • Ultraviolet light = ______________that we can’t see • Infared light = ________________of light we can’t see

  7. What happens when light strikes a surface? • 1. Reflection - _______________off a surface • ex. Mirror

  8. Refraction - ________________when it travels through a substance • Ex . Water = slows light • image appears to be closer than it is.

  9. Color • Color = ___________ of a wavelength of light • visible light Visible = ROYGBIV

  10. ____________- triangular shaped objects made of clear glass • _____________into individual wavelengths • ROYGBIV

  11. Sound • Form of energy that ________________ • - million times _________ than Light • -Made by _________________________ • -______________best through ___________ • - __________ amplitude = louder sound

  12. Electrical Currents • Conductors - materials that _________________________________ • metals , copper, gold, iron • allow electrons to flow through

  13. Magnetic Fields • Each end of a magnet has a __________ • Pole = ____________________________ • ________ poles = same = they _______each other • _________ poles = _________ each other • + and -

  14. __________ = any piece of stone, metal that attracts iron or steel • Magnetism = property of all matter • only some materials have a strong enough magnetism to be noticed

  15. cont • The magnetic force = _________at the poles • ___________ = create magnetic pull • When a magnet is heated or hammered the magnetic field of the electron return to their random positions

  16. Insulators • _________________= materials that electricity can’t travel through well. • Ex. Rubber and Plastic= coating on a wire or plug.

  17. Batteries • Batteries = change ________energy to ________ energy • - made of two metals and an acid • acid _________ ___________ from one metal and adds it to another • One metal becomes positively charged • One is negatively charged

  18. Circuit • Circuit = ________ __________ of electricity flows through • Usually contains a battery (energy) source, switch, and resistor (light) • switch = open= electricity cannot flow • switch = closed = electricity can flow

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