EM Spectrum Warm Up
Quiz by Rebekah Beard
Grade 8 STAAR Test (Adopted 2021)
Science (2021)
Texas Essential Knowledge and Skills (TEKS)
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14 questions
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- Q1What happens to the wavelength of a wave if its frequency increases while the speed remains constant?The wavelength increases as frequency increases.The wavelength decreases as frequency increases.The wavelength remains unchanged.The wavelength depends only on the medium.120s8.8
- Q2In which direction does energy transfer occur in a transverse wave relative to the displacement of the medium?At a 45-degree angle to the displacement.Perpendicular to the displacement.Opposite to the direction of motion.Parallel to the displacement.30s8.8
- Q3What is the primary difference between mechanical and electromagnetic waves in energy transfer?Electromagnetic waves require a medium, while mechanical waves do not.Both types of waves require a medium for energy transfer.Mechanical waves transfer energy faster than electromagnetic waves.Mechanical waves require a medium to transfer energy, while electromagnetic waves do not.120s8.8
- Q4What property of a wave is measured in hertz?Frequency.Speed.Wavelength.Amplitude.120s8.8
- Q5In the context of the electromagnetic spectrum, which wave characteristic determines the energy of the wave?Wavelength alone determines energy, with shorter wavelength indicating lower energy.Wavelength and amplitude together determine energy.Amplitude determines energy, larger amplitude means higher energy.Frequency determines the energy, with higher frequency indicating higher energy.120s8.8(A)
- Q6What is the effect of increasing the frequency on the wavelength of a wave in the electromagnetic spectrum?Increasing frequency results in a shorter wavelength.Increasing frequency results in a longer wavelength.Increasing frequency results in a constant wavelength regardless of frequency changes.Increasing frequency does not affect the wavelength.120s8.8(A)
- Q7In the electromagnetic spectrum, which property of waves is most directly associated with the color of visible light?Frequency alone regardless of wavelength determines the color of visible light.Wavelength determines the color of visible light.Amplitude determines the color of visible light.Frequency and amplitude together determine the color of visible light.120s8.8(A)
- Q8How does higher frequency affect the type of electromagnetic wave produced?Higher frequency waves are less energetic and can include radio waves.Higher frequency keeps the energy constant but changes the color of the wave.Higher frequency reduces energy, resulting in longer wavelengths like microwaves.Higher frequency waves are more energetic and can include X-rays or gamma rays.120s8.8(A)
- Q9Which application of electromagnetic waves is primarily used for treating cancerous tumors?X-raysFiber opticsRadiation therapyMicrowaves120s8.8(B)
- Q10What type of electromagnetic wave is commonly used in wireless communication technologies like Wi-Fi and mobile phones?X-raysMicrowavesRadiowavesUltraviolet light120s8.8(B)
- Q11Which application of electromagnetic waves involves using light to transmit data over long distances with minimal loss?Ultraviolet sterilizationMicrowavesFiber opticsX-rays120s8.8(B)
- Q12What application utilizes ultraviolet light to kill bacteria and viruses in medical settings?Fiber opticsUltraviolet sterilizationMicrowavesRadiation therapy120s8.8(B)
- Q13What is a common use of infrared electromagnetic waves in everyday technology?Astronomical observationsRemote controlsUltraviolet sterilizationX-ray imaging120s8.8(B)
- Q14Which type of electromagnetic wave is primarily used to examine the internal structures of the body in medical imaging?RadiowavesMicrowavesX-raysUltraviolet light120s8.8(B)