1 / 18

Waves

Waves. What types of waves are there?. Light Waves Sound Waves Ocean Waves Tsunami’s. Wave Demonstration. Light. Pre-assessment. What is a wave? What is the goal of a wave? Can you label these parts of a wave? Wavelength Crest Trough Amplitude. Waves.

alagan
Download Presentation

Waves

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Waves

  2. What types of waves are there? • Light Waves • Sound Waves • Ocean Waves • Tsunami’s

  3. Wave Demonstration • Light

  4. Pre-assessment • What is a wave? • What is the goal of a wave? • Can you label these parts of a wave? • Wavelength • Crest • Trough • Amplitude

  5. Waves • A few basic properties of waves • Waves transfer energy • Waves need a medium • A wave is a disturbance that carries energy through matter and space. • Energy spreads out as a wave travels

  6. What is their medium? • Sound Waves • Ocean Waves • Light Waves

  7. What is their energy source? • Ocean waves • Your Radio • When you talk • Light from the sun • Light from a flashlight

  8. Waves Spreading Out? • Radio waves • Voice • Light-flashlight • Ripples in a pond.

  9. Parts of a Wave • Crest • Trough • Wavelength • Amplitude

  10. Review • Most waves are caused by what? • A wave is a disturbance that transmits what? • In an ocean wave, the molecules of water move which way? • Identify the medium for the following waves: • Ripples on a pond • The sound waves from a stereo speaker • Seismic waves

  11. Types of Waves • Two main types of waves- Longitudinal and Transverse • Longitudinal Waves- Have parallel motion, waves that cause particles to move parallel to the wave motion. • Transverse-motion of the particles is perpendicular to the motion of the wave.

  12. Parts of a transverse wave • Crest-highest point of a transverse wave. • Troughs-lowest point of a transverse wave. • Amplitude- the greatest distance that particles are displaced from their normal resting positions.

  13. Parts of a Longitudinal Wave • Two parts of a Longitudinal Wave • Compression- areas where the wave is crowded together. • Rarefactions-areas where the wave is spread out.

  14. Wave Measurements • Wavelength- measures the distance of two equivalent parts of a wave. • Period-measures how long it takes for one wave to pass by. • Frequency-measures the rate of vibrations.

  15. Frequency and Period Relationship • Frequency and period are inverses of each other. • What is an inverse relationship? • Sample Problem

  16. Relationship Between Wavelength and Period • Speed=displacement/time • Wave Speed=wavelength/period • Wave Speed=frequency x wavelength • Sample Problem

  17. Lab Tomorrow • Identifying the different parts of different waves. • Measuring the period, frequency and wavelengths of different waves.

  18. Rest of Class • I want you to draw a longitudinal and transverse wave. • Label the following parts. • Compression • Rarefaction • Crest • Trough • Amplitude • Wavelength • Define period and frequency. • Explain their relationship. • Wave Speed Equations

More Related