1. Complete Warm-Up for April 9th. Work with your shoulder partner first. Then swap and compare answers with the rest of your team. 4/9/122. The team with the most correct answers are “King/Queen for the day” and the D. Goldsberry rolling chairs.3. Get your journal ready. Add one page of guided notes to the next available page.4. Time Limit: 8 minutes
S8P5:Students will explore the 4/9/12wave nature of sound and D. Goldsberryelectromagnetic radiation.
How can light and 4/9/12sound be used as D. Goldsberrytools?
Echolocation is the use of reflectedsound waves to determine distancesor to locate objects. Some animals 4/9/12use echolocation to navigate and tofind food. Examples of animals D. Goldsberryusing echolocation would includebats, dolphins, porpoises, andwhales.
Sonar is a system that usesreflected sound waves to detect 4/9/12and locate objects under water.Some uses of sonar includes D. Goldsberrymapping the ocean floor andlocating sunken ships
Ultrasound waves can be sent into thehuman body. Different parts of thebody reflect sound waves differently. 4/9/12The reflected waves are collected by D. Goldsberrya computer. The resulting images canbe used to see the image a fetus, tolook for gallstones, and to look forharmful tumors.
Production of Laser lightLasers can be made from gases,liquids, and solids. Lasermedium is placed in a tube with 4/9/12a mirror at one end and a partialmirror at the other end. D. Goldsberry
Production of Laser lightThe medium is “excited orcharged” by an electric current.Excited atoms give off photons. 4/9/12The photons bump into otheratoms which then give off D. Goldsberryphotons “in sync” with thecolliding photons.
Production of Laser lightWhen photons travel back andforth between the two mirrorsuntil a coherent beam passes 4/9/12through the partial mirror. D. Goldsberry