Monday – Finish Waves Lab (notebook, worksheet) & Reinforcing Wave knowledge (page 8)

1. Monday – Finish Waves Lab (notebook, worksheet) & Reinforcing Wave knowledge (page 8) Tuesday – Notes, Go over Page 8 & Wave foldable Wednesday – Notes & Wave equation practice Thursday – CRT Pre-Test Friday – NO SCHOOL (Staff Development) LESSON PLAN

2. Objective 10/08/2012 Page 34 SWBAT apply the properties, parts and types of waves by recreating them through investigation. Jumpstart Provide an example of the following: *A transverse wave *A longitudinal wave Which of the two are mechanical? Electromagnetic? Outro Finish your wave lab and turn it in to your period’s tray.

3. Waves Lab Page 35

4. Set your notebook up like this…. #3- A transverse wave: #3- Note the wavelength of the wave you create: #4- Observations about the energy needed to create high/low frequency waves: #5- Note the wavelength of the wave you create: #5- Observations about the energy needed to create large and small amplitude transverse waves.

5. Objective 10/08/2012 Page 34 SWBAT apply the properties, parts and types of waves by recreating them through investigation. Jumpstart Provide an example of the following: *A transverse wave *A longitudinal wave Which of the two are mechanical? Electromagnetic? Outro Finish your wave lab and turn it in to your period’s tray.

6. Page 8:Work on this page individually. Reinforcing Waves Knowledge • Label diagram with correct vocabulary. • Show correct ways to measure wavelength and amplitude. • Measure the length and height of the parts of the wave, using the ruler printed on the paper. • - 7. Fill in the blanks with the appropriate terms.

7. Objective 10/09/2012 Page 36 SW connect wave properties to their measurement through notes and creating a wave foldable. Jumpstart What do you call a wave that does not require a medium to travel; and can travel through a vacuum? What do you call a wave that requires a medium to travel; and cannot travel through a vacuum? Outro Explain why frequency will decrease if wavelength increases.

8. Wave Measurement Page 37

9. Longitudinal Waves Transverse Waves Keep your eye on one particle! DIRECTION OF PARTICLE MOTION DIRECTION OF ENERGY TRANSPORT DIRECTION OF PARTICLE MOTION DIRECTION OF ENERGY TRANSPORT

10. Period • Period- The time it takes a wave to complete a full wave cycle In a time of one period, the wave has moved a distance of one wavelength • Inverse of frequency • Ex. Frequency = 5 Hz • Period = 1/5 s

11. Period • Ex. Frequency = 5 Hz • Period = 1/5 s Inverse of frequency

12. Speed/Velocity- • Speed • Velocity • the distance an object travels in one unit of time • ex. 25 miles per hour • speed with a direction • ex. 25 mph, North

13. Objective 10/09/2012 Page 36 SW connect wave properties to their measurement through notes and creating a wave foldable. Jumpstart What do you call a wave that does not require a medium to travel; and can travel through a vacuum? What do you call a wave that requires a medium to travel; and cannot travel through a vacuum? Outro Explain why frequency will decrease if wavelength increases.

14. Objective 10/10/2012 Page 38 SW apply their knowledge of wave measurement to the wave equation by practicing real life situations. Jumpstart Explain the difference between speed and velocity. (Refer to your notes from yesterday if needed) Outro An elephant produces a 10 Hz sound wave. Assuming the speed of sound in air is 345 m/s, determine the wavelength of this infrasonic sound wave. • v = 345 m/s f = 10 Hz • wavelength λ = 34.5 meters

15. Wave Equation Page 39

16. The Wave Equation- formula for relating speed/velocity (v), wavelength (λ), and frequency (f) • Speed = Wavelength × Frequency V = λ× f • Wavelength = Speed Frequency • Frequency = Speed Wavelength • Mathematical Equation in Words: • As wavelength increases, frequency decreases. • As wavelength decreases, frequency increases.

17. Wave Equation Practice • A ruby-throated hummingbird beats its wings at a rate of about 70 wing beats per second. • What is the frequency (in Hertz) of the sound wave? • f = 70 Hz • Assuming the sound wave moves with a velocity of 350 m/s, what is the wavelength of the wave? • wavelength λ = 5.0 m • F = 70 Hz • V = 350 m/s • λ = v/f  350/70 = 5.0 m

18. On a hot summer day, a pesky little mosquito produced its warning sound near your ear. The sound is produced by the beating of its wings at a rate of about 600 wing beats per second. • What is the frequency in Hertz of the sound wave? • 600 Hz • Assuming the sound wave moves with a velocity of 350 m/s, what is the wavelength of the wave? • wavelength λ = 0.583 meters • F = 600 Hz • V = 350 m/s • λ = v/f  350/600 = 0.583 m

19. Objective 10/10/2012 Page 38 SW apply their knowledge of wave measurement to the wave equation by practicing real life situations. Jumpstart Explain the difference between speed and velocity. (Refer to your notes from yesterday if needed) Outro An elephant produces a 10 Hz sound wave. Assuming the speed of sound in air is 345 m/s, determine the wavelength of this infrasonic sound wave. • v = 345 m/s f = 10 Hz • wavelength λ = 34.5 meters

20. Objective 10/11/2012NO PAGE SW apply their knowledge and skills in Life, Earth, and Physical Science to CRT practice. Jumpstart Which statement best explains why all of the plants were grown at a temperature of 22°C? A. The main purpose of this investigation was to see how well plants grow at 22°C. B. Since temperature was not the experimental variable in this investigation, it was kept the same for each plant. C. The best temperature for the growth of this type of plant during an investigation was 22°C. D. Temperature was an environmental factor in this investigation and can be changed. During an investigation, four plants were continuously exposed to various colors of light for a two-week period. The table below shows the increase in plant mass over the two-week period.