Physics 2 WAVES ppt overview

Physics 2 WAVES ppt. by Robin D. Seamon (Heat & Temperature Energy Waves)

[object Object],Solid Liquid Gas http://www.bcssa.org/newsroom/scholarships/great8sci/Matter/Choose_Matter.html The more kinetic E the higher the temp. Interactive LAB

[object Object],[object Object],[object Object],Kelvin 0 = when all molecular motion stops 32 °F 0 °C 273 °K 98.6 °F 37 °C 310 °K 212 °F 100 °C 373 °K Farenheit Celcius Kelvin

[object Object],[object Object],[object Object],[object Object]

Put ‘C’ for Conductor & ‘I’ for Insulator. Curling iron oven mitt ceramic bowl iron skillet stove coil cookie sheet plastic spatula fiberglass insulation copper pipe

[object Object],[object Object],[object Object]

Which changes temperature faster: --air, water? Can’t measure transferred E directly; must be calculated: Heat (J) = specific heat x mass x change in temp

LAB: Feel the Heat ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],p. 430 Materials : balance, 2 cups, cylinder, 10 nails, string, rubber band, thermometer, hot water, cold water 2 1 Final temp of water and nails combined Initial temp of water to which nails will be transferred Initial temp. of water & nails Volume of water that equals mass of nails (mL) Mass of nails (g) Trial

Compression waves pressed close together Rarefraction waves stretched farther apart Example: sound wave

Rarefraction Transverse Wave Longitudinal Wave

Waves: Transverse wave- particles move up & down, perpendicular to direction wave is going Longitudinal wave- particle move horizontally along the wave in the direction the wave is moving Surface wave - combination of transverse & longitudinal wave VIDEO: HSW Wavelength Basics ADVANCE

Transverse wave- particles move up & down, perpendicular to direction wave is going BACK

Longitudinal wave- particle move horizontally along the wave in the direction the wave is moving BACK

Surface Waves HSW: Waves of Destruction Surface Waves (3 min) BACK

[object Object],[object Object],[object Object],[object Object],[object Object]

Wave Interactions reflection - wave bounces back after hitting a barrier; examples: light reflected lets us see it sound echoes refraction - bending of a wave as it passes from one medium to another at an angle (because wave changes speed in a different medium) example: light through a prism (light is dispersed into separate colors) HSW: Exploring sound, Reverberation (3 min)

Diffraction bending of waves around a barrier Interference two or move waves overlap - constructive interference 2 waves overlap crests & troughs, combining both waves’ energy… makes it stronger! -destructive interference 2 waves overlap one crest on one trough, cancels out each other’s Energy HSW: Assignment Discovery: Sound/Interference (1 ½ min) Ripple Tank Simulation

Standing waves: pattern looks like wave is standing still Resonance: two objects naturally vibrate at the same frequency; sound of one causes the other to vibrate VIDEO: Sound/Resonance-Shattering glass (15 min) United Streaming

Physics 2 WAVES ppt overview

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Physics 2 WAVES ppt overview