Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
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
Science Ch 1-2
Sound and Light - Characteristics of Waves/Sound
| Question | Answer |
|---|---|
| Waves combine to produce a smaller or zero-amplitude wave in a process called... | destructive interference |
| Which part of your ear sends the message to your brain that you've heard a sound? | the hairlike structures in the cochlea that are attached to nerve cells |
| Why do you see lightning from a distant storm before you hear thunder? | light travels faster than sound |
| What is a set of tones combined in a way that is pleasing to the ear? | music |
| The most common type of hearing loss is due to... | aging |
| The changing pitch of a police car's siren as it moves by you is an example of... | the Doppler Effect |
| When an incoming wave combines with a reflected wave in such a way that the combined wave appears to be standing still, the result is a... | standing wave |
| The bending of waves around the edge of a barrier is known as... | diffraction |
| Frequency is measured in units called... | hertz |
| The pitch of a sound that you hear depends on the sound wave's... | frequency |
| A wave travels through a medium because... | the wave's energy passes from particle to particle |
| A fundamental tone has only one... | frequency |
| A disturbance that transfers energy from place to place is called a... | wave. |
| Secondary waves CANNOT travel through... | liquids. |
| Loudness, or sound level, is measured in units called... | decibels. |
| What is another use of a seismograph aside from detecting earthquakes? | locating valuable resources underground. |
| The first person to break the sound barrier was... | Chuch Yeager |
| What occurs when two or more sound waves interact? | interference |
| When a wave moves through an opening in a barrier, it... | bends and spreads out. |
| What are the highest and lowest points on a standing wave called? | antinodes |
| Longitudinal seismic waves are known as... | primary waves. |
| The highest parts of a transverse wave are called... | crests. |
| Which waves arrive at a seismograph first? | P waves |
| How well sounds can be heard in a particular room or hall is described by... | acoustics |
| The speed of sound depends on... | the properties of the medium it travels through |
| Waves that move the particles of the medium parallel to the direction in which the waves are traveling are called... | longitudinal waves. |
| The ability of a material to BOUNCE BACK after being disturbed is called... | elasticity. |
| As a sound source moves toward a listener, the pitch... | appears to increase. |
| Scientists on the side of Earth opposite the epicenter of an earthquake detect mainly... | P waves |
| The bending of waves due to a change in speed is called... | refraction. |
| The interaction between two waves that meet is called... | interference. |
| The distance between two corresponding parts of a wave us the wave's... | wavelength. |
| The amount of energy a sound wave carries per second through a unit area is its... | intensity. |
| Which term refers to how high or low a sound seems to a person? | pitch |
| What type of musical instrument is a xylophone? | percussion |
| You can hear sounds from around corners because of... | diffraction. |
| What is a mixture of sound waves that do not sound pleasing together called? | noise |
| Mechanical waves are classified according to... | how they move. |
| When a wave hits a surface through which it CANNOT pass and bounces back, it undergoes... | reflection. |
| Which part of your ear do sound waves enter through? | ear canal |
| Sound waves with frequencies below the normal human range of hearing are called... | infrasound. |
| Sound is a dusturbance that travels through a medium as a... | longitudinal wave. |
| The height of a tsunami is low over the open ocean. The tsunami's height increases dramatically when... | the tsunami reaches shallow water near a coastline. |
| Waves combine to make a wave with larger amplitude in a process called... | constructive interference. |
| At what level can sounds damage the ears? | 100 dB |
| In which direction(s) do seismic waves travel from their point of origin? | in all directions |
| A system of detecting reflected sound waves is... | sonar. |
| The compressions and rarefraction that make up a sound wave traveling through the air are... | differences in air pressure. |
| The basic groups of musical instruments are... | stringed, wind, and percussion. |
| The speed of a wave is its wavelength multipled by its... | frequency. |
| Sound waves with frequencies above 20,000 Hz are called... | untrasound. |
| Why did Chuck Yeager's team choose a high altitude to try to break the sound barrier? | The temperature is lower, so the speed of sound is lower. |
| What occurs when vibrations traveling through an object match the object's natural frequency? | resonance |
| The maximum distance that the particles of medium move from the rest position is the... | amplitude of the wave. |
| Which of the following can cause hearing loss: listening to soft music; going outside in cold weather; infections? | infections |
| Doctors are able to make sonograms through the use of... | untrasound. |
| Refraction occurs when a wave... | enters a new medium at an angle. |
| What do some bats use to locate food and to navigate? | echolocation. |
| Mechanical waves are created when a source of energy causes a medium to... | vibrate. |
| Waves produced by earthquakes are called... | seismic waves. |
Created by:
8thgraders