Wave Unit Review Guide PDF

Name:_____________________________Date:_________________Period:________ Wave Unit Review Guide Important vocabulary terms: Absorption Electromagnetic Wave Refraction Amplitude...

Name:_____________________________Date:_________________Period:________ Wave Unit Review Guide Important vocabulary terms: Absorption Electromagnetic Wave Refraction Amplitude Electromagnetic Spectrum Scattering Compression Frequency Superposition Compressional/ Longitudinal Wave Mechanical Wave Transmission Crest Medium Transverse Wave Diffraction Midline Wave Disturbance Rarefaction Wavelength Reflection Important Formula(s): Formula: Units: Wave Speed Frequency Wavelength I. Introduction to Waves 1. Waves carry ___________________ through the medium. 2. Waves that only travel through matter are ____________________________________ waves. These waves can move in the form of __________________________ waves or as ___________________ waves. 3. Mechanical waves that travel perpendicular to the direction of energy transfer are called: For example: 4. Mechanical waves that travel parallel to the direction of energy transfer are called: For example: 1 5. Waves that can travel through matter OR a vacuum are _____________________________. For example: 6. Electromagnetic waves move in the shape or form of ________________________________ waves, but are made up of a vibrating ________________ and _______________ field. 7. True/False: All electromagnetic waves travel at the same speed. 8. Label the missing wave types (a-g.) on the Electromagnetic Spectrum below: a. b. c. d. e. f. g. ______________Frequency ______________Frequency _______________ Wavelength _______________ Wavelength 9. Label where the frequency is “higher” and “lower” on the Electromagnetic Spectrum in the spaces above. Label where the wavelength is “Longer” and “shorter” on the Electromagnetic Spectrum. 10. On the Electromagnetic spectrum, as wave frequency increases, the wavelength __________________. 11. Suppose you drop a penny in a fountain. At once, you see ripples spreading out across the surface. a. What type of waves are these? b. What was the disturbance? c. How can you increase the amplitude of the waves? 2 Directions: Use the word bank to answer the following questions. Some words will not be used. Frequency Mechanical Infrared Radio Gamma Wavelength Longitudinal Ultraviolet Visible Light Amplitude Electromagnetic Transverse X-Rays 12. ____________________ waves can easily travel through solids and are used to create images of internal organs. 13. ____________________ is the distance between one point of a wave to the same point in the next wave. 14. ____________________ is the number of waves per unit of time. 15. ____________________ waves occur when the motion of the medium is parallel to the direction of the wave. 16. ____________________ waves have a color spectrum known as ROYGBIV. 17. ____________________ waves cause vibrations of molecules. 18. ___________________ waves are produced by devices like cell phones. 19. ___________________ waves occur when the motion of the medium is at right angles (perpendicular) to the direction of the wave. 20. ___________________ waves are often used in heat lamps. 21. ___________________ waves cannot be seen by humans but are utilized by insects to locate plants. 22. ___________________ electromagnetic waves that have the shortest wavelength and the highest frequency II. Properties of Waves 23. Draw and label the amplitude, wavelength, midline, crest, and trough of a transverse wave. 24. Draw and label the wavelength, compression, and rarefaction of a compressional/longitudinal wave. 3 25. Look at the images below. Circle the one with the greatest frequency. Put a box around the one with the longest wavelength. 26. Below are a series of waves that each occurred in 2 seconds. Use a ruler to complete the table below: Wavelength: Wavelength: Wavelength: Wavelength: Frequency: Frequency: Frequency: Frequency: Amplitude: Amplitude: Amplitude: Amplitude: III. Wave Calculations- show your work! 27. Suppose you watch ocean waves pass under the end of a fishing pier. There are 5 waves every 15 seconds. Calculate their frequency. (Hint: Think about the definition of frequency!) 28. Consider a wave generator (it makes waves) at a water park- it produces waves at a frequency of 10 Hz. The speed of the waves is 2.7 m/s. Solve for the wavelength of the waves: 4 29. Waves on Lake Keowee pass by two docks that are 40.0 m apart. a.​ Determine the wavelength of a single wave: b. ​ If their frequency is 0.5 Hz, solve for the wave speed. 30. Sally, an enthusiastic physics student, made waves with a Slinky(™) during the class lab investigation. She and her partner held the ends of the Slinky(™) to create waves with a wavelength of 1.5 meters. The frequency of the waves was 4 Hz. Solve for the wave speed. 31. The wavelength of a sound wave in this room is 1.13 m and the frequency is 301 Hz. Solve for the speed of the wave: 32. Calculate the wavelength if the frequency is 0.56 Hz and the wave speed is 330 m/s. 5 33. Calculate the frequency if the wavelength is 0.98 m and the wave speed is 330 m/s. IV. Wave Behavior- Fill in the missing parts of the table below: Wave Behavior: Wave Behavior: Wave Behavior: 34. Reflection 35. 36. Draw it: Draw it: Draw it: Definition: Definition: Definition: Wave Behavior: Wave Behavior: Wave Behavior: 37. Scattering 38. 39. Transmission Draw it: Draw it: Draw it: Definition: Definition: Definition: 40. True/False: For refraction to occur, the wave must move from one medium to another. 6 Part V. Wave Behavior 41. Why does the sky appear blue and not red? Explain using one of the 6 wave behaviors: 42. A police officer uses a radar gun to send radio waves toward your moving vehicle. When the waves bounce back, the radar gun calculates your speed based on the time it takes for the waves to return. Which wave behavior is the radar gun using to determine your speed? Explain: 43. The diagram below illustrates how corrective eyeglasses work. Which wave behavior is utilized in eyeglasses? Explain your reasoning. 7 44. Classroom ceilings are made of soft, porous tiles. These tiles take in sound waves, rather than transmitting or reflecting them. Which wave behavior do the ceiling tiles utilize? Explain your reasoning. 45. And, finally scientific notation. Write the following numbers in scientific notation: 75400 _________________________________ 3,550,000_______________________________ 0.000088_______________________________ 0.0072_________________________________ 0.0000713_______________________________ 8