Electromagnetic Spectrum

The Electromagnetic Spectrum Watch this video before answering the questions. Vocabulary Matching Match the terms with the best definition Wavelength The distance between successive crests in a wave. Frequency The rate at which a wave occurs or is repeated over a particular period of time. Electromagnetic Spectrum The range of all possible energy levels of electromagnetic radiation from radio waves to gamma waves. Electromagnetic Radiation The type of energy released by stars consisting of electric and magnetic waves that travel at the speed of light. Red Shift The shift towards longer wavelength that allows us to determine if an object is moving away from us. Big Bang Theory A scientific theory that says the universe began as a small point that expanded rapidly about 13.7 billion years ago. Red Shift and The Big Bang Theory Watch this video to better understand red shift. Use the vocabulary words from the matching section to help you select the words to fill in the blanks Visible light is very important to life on Earth, and it is one type of energy that gives scientists evidence about the origins of the universe. Visible light is one kind of energy that is considered a type of electromagnetic radiation, or the type of energy consisting of electric and magnetic waves that travel at the speed of light. There are many different types of electromagnetic radiation and these are arranged by their wavelength on the electromagnetic spectrum. The wavelength is the distance between successive peaks in a wave. Types of electromagnetic radiation also vary by their frequency, or the rate at which a wave is repeated over a period of time. There are many different types of electromagnetic radiation including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. Many of these frequencies of electromagnetic radiation may sound familiar and are often used in everyday applications.One application for the electromagnetic spectrum is determining the age of the universe and the composition of distant stars. For example, as light moves away from Earth, it stretches to a longer wavelength and appears more red, which is a phenomenon called red shift. Red-shifted visible light from when the universe originated became microwave radiation, and this is called microwave background radiation. Scientists theorize the Big Bang Theory, or the notion that the universe began as a small point and rapidly expanded, based on this background microwave radiation. Which option below matches best with wave type A? Visible Light: This is the type of electromagnetic radiation that we can see as the colors red, orange, yellow, green, blue, indigo, and violet. Average wavelength is 10-5 cm Gamma Rays: These are very high energy forms of electromagnetic radiation that are used in cancer treatments. Average wavelength is 10-10 cm Microwaves: These waves are most commonly used to heat food by exciting water molecules in the food. Average wavelength is 1 cm Ultraviolet Light: This is the type of electromagnetic radiation that causes sunburns. Average wavelength is 10-6 cm Infrared: This type of radiation is often used in night vision technology by detecting heat energy. Average wavelength is 10-2 cm X-Rays: This type of electromagnetic radiation is used to look inside of our bodies to see bone structure. Average wavelength is 10-8 cm Radio Waves: These long waves transmit radio signals that we use to listen to music on our AM radios. Average wavelength is 104 cm Which option below matches best with wave type B? Visible Light: This is the type of electromagnetic radiation that we can see as the colors red, orange, yellow, green, blue, indigo, and violet. Average wavelength is 10-5 cm Gamma Rays: These are very high energy forms of electromagnetic radiation that are used in cancer treatments. Average wavelength is 10-10 cm Microwaves: These waves are most commonly used to heat food by exciting water molecules in the food. Average wavelength is 1 cm Ultraviolet Light: This is the type of electromagnetic radiation that causes sunburns. Average wavelength is 10-6 cm Infrared: This type of radiation is often used in night vision technology by detecting heat energy. Average wavelength is 10-2 cm X-Rays: This type of electromagnetic radiation is used to look inside of our bodies to see bone structure. Average wavelength is 10-8 cm Radio Waves: These long waves transmit radio signals that we use to listen to music on our AM radios. Average wavelength is 104 cm Which option below matches best with wave type C? Visible Light: This is the type of electromagnetic radiation that we can see as the colors red, orange, yellow, green, blue, indigo, and violet. Average wavelength is 10-5 cm Gamma Rays: These are very high energy forms of electromagnetic radiation that are used in cancer treatments. Average wavelength is 10-10 cm Microwaves: These waves are most commonly used to heat food by exciting water molecules in the food. Average wavelength is 1 cm Ultraviolet Light: This is the type of electromagnetic radiation that causes sunburns. Average wavelength is 10-6 cm Infrared: This type of radiation is often used in night vision technology by detecting heat energy. Average wavelength is 10-2 cm X-Rays: This type of electromagnetic radiation is used to look inside of our bodies to see bone structure. Average wavelength is 10-8 cm Radio Waves: These long waves transmit radio signals that we use to listen to music on our AM radios. Average wavelength is 104 cm Which option below matches best with wave type D? Visible Light: This is the type of electromagnetic radiation that we can see as the colors red, orange, yellow, green, blue, indigo, and violet. Average wavelength is 10-5 cm Gamma Rays: These are very high energy forms of electromagnetic radiation that are used in cancer treatments. Average wavelength is 10-10 cm Microwaves: These waves are most commonly used to heat food by exciting water molecules in the food. Average wavelength is 1 cm Ultraviolet Light: This is the type of electromagnetic radiation that causes sunburns. Average wavelength is 10-6 cm Infrared: This type of radiation is often used in night vision technology by detecting heat energy. Average wavelength is 10-2 cm X-Rays: This type of electromagnetic radiation is used to look inside of our bodies to see bone structure. Average wavelength is 10-8 cm Radio Waves: These long waves transmit radio signals that we use to listen to music on our AM radios. Average wavelength is 104 cm Which option below matches best with wave type E? Visible Light: This is the type of electromagnetic radiation that we can see as the colors red, orange, yellow, green, blue, indigo, and violet. Average wavelength is 10-5 cm Gamma Rays: These are very high energy forms of electromagnetic radiation that are used in cancer treatments. Average wavelength is 10-10 cm Microwaves: These waves are most commonly used to heat food by exciting water molecules in the food. Average wavelength is 1 cm Ultraviolet Light: This is the type of electromagnetic radiation that causes sunburns. Average wavelength is 10-6 cm Infrared: This type of radiation is often used in night vision technology by detecting heat energy. Average wavelength is 10-2 cm X-Rays: This type of electromagnetic radiation is used to look inside of our bodies to see bone structure. Average wavelength is 10-8 cm Radio Waves: These long waves transmit radio signals that we use to listen to music on our AM radios. Average wavelength is 104 cm Which option below matches best with wave type F? Visible Light: This is the type of electromagnetic radiation that we can see as the colors red, orange, yellow, green, blue, indigo, and violet. Average wavelength is 10-5 cm Gamma Rays: These are very high energy forms of electromagnetic radiation that are used in cancer treatments. Average wavelength is 10-10 cm Microwaves: These waves are most commonly used to heat food by exciting water molecules in the food. Average wavelength is 1 cm Ultraviolet Light: This is the type of electromagnetic radiation that causes sunburns. Average wavelength is 10-6 cm Infrared: This type of radiation is often used in night vision technology by detecting heat energy. Average wavelength is 10-2 cm X-Rays: This type of electromagnetic radiation is used to look inside of our bodies to see bone structure. Average wavelength is 10-8 cm Radio Waves: These long waves transmit radio signals that we use to listen to music on our AM radios. Average wavelength is 104 cm Which option below matches best with wave type G? Visible Light: This is the type of electromagnetic radiation that we can see as the colors red, orange, yellow, green, blue, indigo, and violet. Average wavelength is 10-5 cm Gamma Rays: These are very high energy forms of electromagnetic radiation that are used in cancer treatments. Average wavelength is 10-10 cm Microwaves: These waves are most commonly used to heat food by exciting water molecules in the food. Average wavelength is 1 cm Ultraviolet Light: This is the type of electromagnetic radiation that causes sunburns. Average wavelength is 10-6 cm Infrared: This type of radiation is often used in night vision technology by detecting heat energy. Average wavelength is 10-2 cm X-Rays: This type of electromagnetic radiation is used to look inside of our bodies to see bone structure. Average wavelength is 10-8 cm Radio Waves: These long waves transmit radio signals that we use to listen to music on our AM radios. Average wavelength is 104 cm When viewed from Earth, all observable objects outside our galaxy have their wavelengths shifted to slightly longer wavelengths. Scientists have concluded that this is evidence that - Objects in the universe are moving closer together Objects in the universe are remaining in the same place Objects in the universe are moving away from each other Objects in the universe are becoming warmer What characteristic of stars is used to determine the elemental composition of stars? The spectrum of wavelengths from visible light produced by the star The distance that the star is from the Earth The proximity of other stars The size of the star The frequency of electromagnetic radiation is: The height of each peak of the wave The rate it repeats in a given time period The total length of the wave from peak to peak The most often used type of electromagnetic radiation Why can scientists use electromagnetic spectra to determine the composition of distant stars? Older stars have different spectra than younger stars The spectrum of each star depends on the temperature and size of the star The electromagnetic spectra of the stars interacts with the light from the sun Each type of element emits a unique spectrum that can be compared to the star's spectrum