chapter 11 physical science
electromagnetic waves can behave like what type of particle a. electrons b. molecules c. photons d. atoms
photons
which of these colors of visible light has the shortest wavelength a. blue b. green c. red d. white
blue
which electromagnetic waves are most similar in length to microwaves a. gamma rays b. infrared waves c. ultraviolet waves d. visible light
infrared waves
which type of electromagnetic wave can be used to determine how energy-efficient a house is a. X-rays b. gamma rays c. infrared waves d. radio waves
infrared waves
which type of electromagnetic wave has wavelength slightly longer than human eye sight a. x ray b. ultraviolet waves c. infrared waves d. gamma rays
infrared waves
which of the following is changing in an AM radio wave a. speed b. frequency c. amplitude d. wavelength
amplitude
the specific frequency of the electromagnetic wave that a radio station is assigned is called the a. amplitude modulation b. carrier wave c. frequency modulation d. cathode
carrier wave
the specific frequency of the electromagnetic wave that a radio station is assigned is called the a. amplitude modulation b. cathode c. frequency modulation d. carrier wave
carrier wave
as the frequency of an electromagnetic wave increases, the wavelength a. decreases b. increases c. remains constant d. becomes faster
decreases
an electric signal that has only two possible values (on and off) is a a. carrier wave b. digital signal c. analog signal d. x-ray
digital signal
tv stations broadcast which type of signal a. analog signal b. ultraviolet ray c. gamma ray d. digital signal
digital signal
people with defective cone cells might be unable to a. protect themselves from UV rays b. distinguish certain colors c. adapt to seeing in bright sunlight d. see in dim light
distinguish certain colors
what type of waves do not require matter to carry energy a. electromagnetic b. mechanical c. compressional d. transverse
electromagnetic
___ is the # of vibrations that occur in 1 second a. interference b. frequency c. amplitude d. wavelength
frequency
the modification of a radio wave to carry info does not alter the ___ of the wave a. microwave signal b. amplitude c. frequency d. wavelength
frequency
which of the following electromagnetic waves can destroy cancer cells a. gamma rays b. radio waves c. infrared waves d. microwaves
gamma rays
which of the following electromagnetic waves can travel through matter and cause damage to cells a. radio waves b. microwaves c. infrared waves d. gamma rays
gamma rays
which type of electromagnetic wav is most dangerous to people a. gamma rays b. ultraviolet waves c. infrared waves d. microwaves
gamma rays
the electromagnetic waves given off by all warm objects are a. microwaves b. infrared waves c. ultraviolet waves d. radio waves
infrared waves
what type of electromagnetic wave transmits thermal energy from a fireplace a. microwaves b. infrared waves c. radio waves d. ultraviolet waves
infrared waves
when electrons are shot through two small openings, the result is an interference patter. this shows that a. matter can behave like waves b. waves can behave like particles c. electrons behave like particles d. the openings were two small
matter can behave like waves
electromagnetic waves with wavelengths between about 1 cm and 20 cm are called a. infrared waves b. microwaves c. ultraviolet d. x-rays
microwaves
communications satellites use microwaves instead of radio waves because a. microwaves are cheaper than radio waves b. microwaves travel faster than radio waves c. radio waves cannot travel in space d. microwaves travel more easily though the atmosphere than radio waves
microwaves travel more easily though the atmosphere than radio waves
____ is the molecule composed of three oxygen atoms a. ozone b. cfc c. nitric oxide d. an antioxidant
ozone
___ are small, portable radio receivers used by restaurants to alert customers that their tables are ready a. transceivers b. cells phones c. pages d. satellites
pagers
a ____ is an electromagnetic wave that behaves like a particle a. carrier b. electron c. proton d. photon
photon
when light behaves like a particle, it is called a a. electron b. photon c. proton d. neutron
photon
the global positioning system is a system of satellites, ground monitoring station and receivers that a. provide information about the receivers exact location at or above Earth's surface b. provide mobile telephone service c. broadcast television signals d. provide two-way radio service for police cars, fire trucks, and ambulances
provide information about the receivers exact location at or above Earth's surface
the energy carried by an electromagnetic wave is called a. radiant b. mechanical c. thermal d. potential
radiant
the energy carried by an electromagnetic wave is called ___ energy a. radiant b. mechanical c. thermal d. potential
radiant
the energy carried by an electromagnetic wave is called ___ energy a. radiant b. mechanical c. thermal d. potential
radiant
radar uses ___ to track airplanes and ships a. x-rays b. gamma rays c. infrared waves d. radio waves
radio waves
which of the following describes x rays a. short wavelength, high frequency b. short wavelength, low frequency c. long wavelength, high frequency d. long wavelength, low frequency
short wavelength, high frequency
x-rays pass most easily through a. bones b. metal c. skin d. teeth
skin
which of the following devices uses infrared waves a. cellular telephone b. satellite c. television remote control d. radar
television remote control
the entire range of the electromagnetic wave frequencies is known as a. ultraviolet radiation b. visible light c. the electromagnetic spectrum d. magnetism
the electromagnetic spectrum
the entire range of the electromagnetic wave frequencies is known as a. visible light b. ultraviolet radiation c. magnetism d. the electromagnetic spectrum
the electromagnetic spectrum
whether or not electrons will be ejected from metal when light shines on the metal depends on a. the frequency of the light b. the intensity of the light c. whether there were any electrons in the metal d. the temperature of the metal
the frequency of the light
how is interference avoided between the signals that come to your cordless phone transceiver and those that it sends a. the signals have different amplitudes b. the signals are modulated differently c. the signals travel at different speeds d. the signals have different frequencies
the signals have different frequencies
a ____ transmits a radio signal at one frequency and receives radio signals at a different frequency a. transceiver b. television remote control c. carrier wave d. microwave oven
transceiver
sunscreen is designed to protect your skin from exposure to too much a. ultraviolet radiation b. gamma radiation c. infrared radiation d. visible light
ultraviolet radiation
which of the following electromagnetic waves enables your body to make vitamin D a. infrared waves b. visible light c. gamma rays d. ultraviolet rays
ultraviolet rays
which of the following electromagnetic waves enables your body to make vitamin d a. visible light b. ultraviolet waves c. gamma rays d. infrared waves
ultraviolet waves
which type of electromagnetic wave enable skin cells to produce vitamin d a. visible light b. ultraviolet waves c. infrared waves d. x rays
ultraviolet waves
in which of the following material will light travel fastest a. air b. vacuum c. water d. glass
vacuum
in which of the following material will light travel the fastest a. air b. vacuum c. water d. glass
vacuum
in which of the following materials will light travel the fastest a. air b. vacuum c. water d. glass
vacuum
which of the following produces electromagnetic waves a. stationary charges particles b. vibrating charged particles c. constant magnetic fields d. moving neutrons
vibrating charged particles
electromagnetic waves are made by a. vibrating air molecules b. vibrating water molecules c. vibrating electric charges d. strong compressions
vibrating electric charges
electromagnetic waves are made by a. vibration air molecules b. vibrating water molecules c. vibration electric charges d. strong compressions
vibration electric charges
electromagnetic waves that can be detected by the human eye are called a. visible light b. gamma rays c. x-rays d. infrared waves
visible light