Sound and Light Chapter 1 Test
Help!
|
|
||||
|---|---|---|---|---|---|
| What is any disturbance that transmits energy through matter or space? | Wave
🗑
|
||||
| True or False. The material through which a wave travels does not move with the energy. | True
🗑
|
||||
| Waves carry _______. | Energy
🗑
|
||||
| Waves do NOT carry _______. | Matter
🗑
|
||||
| As a wave travels, it uses energy to do _____. | Work
🗑
|
||||
| What do you call a substance through which a wave can travel? | Medium
🗑
|
||||
| How is energy transmitted through a medium? | The particle vibrates and passes energy to a particle next to it. So the second particle vibrates.
🗑
|
||||
| Give examples of waves that require a medium. | Sound, seismic, and ocean waves.
🗑
|
||||
| What do you call the waves that require a medium? | Mechanical waves
🗑
|
||||
| Name some types of waves that can travel WITHOUT a medium? | Light, microwaves, TV & radio signals and x-rays.
🗑
|
||||
| What do you call waves that do NOT require media? | Electromagnetic waves
🗑
|
||||
| True or False. Electromagnetic waves travel slower through empty space. | False
🗑
|
||||
| How do mechanical waves differ from electromagnetic waves? | Mechanical waves need a medium to travel...electromagnetic waves do not.
🗑
|
||||
| What are the 2 MAIN types of waves? | Transverse Waves and Longitudinal Waves.
🗑
|
||||
| What do you call the type of wave when a transverse wave combines with a Longitudinal wave? | Surface wave
🗑
|
||||
| What do you call the waves in which the particles vibrate with an up-and-down motion? | Transverse Waves
🗑
|
||||
| What does perpendicular mean? | Right angles
🗑
|
||||
| The particles in a transverse wave move ______ to the direction that the wave is traveling. | Perpendicular
🗑
|
||||
| What is an example of a transverse wave? | A wave moving on a rope.
🗑
|
||||
| What do you call the high and low points of a transverse wave? | Crest and Trough
🗑
|
||||
| What do you call the waves in which the particles of the medium vibrate back and forth along the path that the wave travels? | Longitudinal Waves
🗑
|
||||
| What do you call the section of the longitudinal wave where the particles are crowded together? | Compressions
🗑
|
||||
| What do you call the section of the longitudinal wave where the particles are less crowded than normal? | Rarefactions
🗑
|
||||
| Compare Transverse and Longitudinal waves. | The compressions are like the crests and the rarefractions are like the troughs.
🗑
|
||||
| What is an example of a longitudinal wave? | Sound waves
🗑
|
||||
| Surface waves look like______. | Transverse waves
🗑
|
||||
| What is the difference between surface waves and transverse waves? | The particles in a surface wave move in circles and the particles of a transverse wave move up & down.
🗑
|
||||
| What is an example of a surface wave? | Ocean waves
🗑
|
||||
| Why can't you cause a floating leaf to move to the edge of a pond by throwing stones behind it? | Because you would cause surface waves and they travel in circles rather than back and forth.
🗑
|
||||
| Which property of a wave is related to the height of the wave? | Amplitude
🗑
|
||||
| What is the maximum distance that a wave vibrates from its rest position? | Amplitude
🗑
|
||||
| The larger the amplitude, the _____ the wave. | Taller
🗑
|
||||
| A wave with a large amplitude carries (more, less) energy than a wave with a small amplitude? | More
🗑
|
||||
| Small amplitude = ? | Small energy
🗑
|
||||
| Name the properties of waves. | Amplitude, wavelength, frequency, and wave speed
🗑
|
||||
| What is the distance between 2 adjacent troughs or rarefractions or between 2 adjacent crests or compressions. | Wavelength
🗑
|
||||
| What do you call the number of waves produced in a given amount of time? | Frequency
🗑
|
||||
| How do you measure frequency? | You count the number of crests (compressions) that pass a point in a certain amount of time.
🗑
|
||||
| What is the unit of measurement of frequency? | Hz (hertz)
🗑
|
||||
| What is a hertz? | One wave per second
🗑
|
||||
| True or False? The higher the frequency the shorter the wavelength? | True
🗑
|
||||
| Which carries more energy?...a wave with a short wavelength or a wave with a longer wavelength? | Short wavelength
🗑
|
||||
| What do you call the speed at which a wave travel? | Wave speed
🗑
|
||||
| How do you measure wave speed? | Measure the distance a single crest (compression) travels in a given amount of time.
🗑
|
||||
| What determines the wave speed? | The medium through which the wave is traveling.
🗑
|
||||
| What is the formula for wave speed? | v = wavelength times frequency
🗑
|
||||
| What is the frequency of a wave if it has a speed of 12 cm/sec and a wavelength of 3 cm? | 4 Hz
🗑
|
||||
| What is the wavelength of a wave that has a frequency of 5 Hz and a wave speed of 18 m/s? | 3.6 m
🗑
|
||||
| What is the speed of a wave that has a wavelength of 2 m and a frequency of 6 Hz? | 12 m/s
🗑
|
||||
| What is it called when a wave bounces back after striking a barrier? | Reflection
🗑
|
||||
| What do you call reflected sound waves? | Echoes
🗑
|
||||
| Why can we see the moon? | Light from the sun is reflected off of the moon.
🗑
|
||||
| What do you call the BENDING of a wave as it passes at an angle from one medium to another? | Refraction
🗑
|
||||
| Looking at a pencil half in and half out of a glass of water (at an angle) is an example of what? | Refraction...the pencil looks bent or even broken.
🗑
|
||||
| Why does the pencil look broken when you dip part of it in water at an angle? | The light waves are traveling through different media...so the wave's speed changes.
🗑
|
||||
| What do you call the bending of waves around a barrier or through an opening? | Diffraction
🗑
|
||||
| What kind of waves diffract? | Sound waves
🗑
|
||||
| What determines the amount of diffraction a wave has? | Wavelength and size of barrier (or opening)
🗑
|
||||
| What is the result of two overlapping waves? | Interference
🗑
|
||||
| What is it called when the crest of one wave overlaps the crest of another wave? | Constructive interference
🗑
|
||||
| When a new wave is formed when two waves overlap and the crests overlap, what happens? | The new wave has higher crests and deeper troughs (larger amplitude)
🗑
|
||||
| What is it called when the crest of one wave overlaps with the trough of another wave? | Destructive interference
🗑
|
||||
| What kind of wave are waves in which portions of the wave do not move and other parts move with large amplitude? | Standing waves
🗑
|
||||
| What do you call the frequencies at whch standing waves are produced? | Resonant frequencies
🗑
|
||||
| What caused the bridge in Tacoma Washington to collapse? | Resonance
🗑
|
||||
| Name 2 wave interactions that occur when a wave encounters a barrier. | Reflection and diffraction
🗑
|
||||
| Amplitude (increases, decreases) during constructive interference and (increases, decreases) during destructive interference? | increases, decreases
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
cunninev