Exploring the Electromagnetic Spectrum

What is the primary characteristic of electromagnetic radiation that makes it essential for everyday technology?

• It is mostly used in medical fields.

• It can be easily seen and measured.

• It is invisible yet crucial for communication and technology.

• It is essential for cooking food.

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What property of electromagnetic waves is measured in Hertz?

• Speed

• Frequency

• Energy

• Wavelength

Which type of electromagnetic wave is used in GPS technology?

• Ultraviolet rays

• Radio waves

• Microwaves

• Infrared waves

What discovery did Arno Penzias and Robert Wilson make that supported the Big Bang Theory?

• Infrared background radiation

• Cosmic microwave background radiation

• Ultraviolet background radiation

• Gamma-ray bursts

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How do satellites help in climate forecasting?

• By observing weather patterns globally

• By transmitting television signals

• By measuring Earth's magnetic field

• By providing internet connectivity

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What does NASA's ICESat mission measure using laser altimetry?

• Forest canopy heights

• Ocean depths

• Mountain elevations

• Polar ice sheet elevations

What type of electromagnetic wave is primarily used by the Hubble Space Telescope to capture images of the universe?

• Visible light

• X-rays

• Radio waves

• Microwaves

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NGSS.HS-PS4-5

Which electromagnetic waves are absorbed by ozone in the Earth's atmosphere, protecting us from sunburn?

• Gamma rays

• Microwaves

• Infrared rays

• Ultraviolet B rays

What phenomenon do gamma rays help to monitor that could affect communication on Earth?

• Ocean currents

• Wind patterns

• Solar flares

• Earthquakes

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-5

Which application uses X-rays to determine the composition of materials?

• Material science

• Medical imaging

• Television broadcasting

• Weather forecasting

Tags

NGSS.HS-PS4-3