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