8.8ab

Scientists observed a celestial object emitting a wavelength of 3 x 10^-10m. What type of telescope did the scientists have to use to view this?

• Radio wave

• Infrared ray

• X-ray

• Gamma Ray

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NGSS.HS-PS4-3

NGSS.HS-PS4-4

What electromagnetic spectrum is associated with the colors red, green, and blue?

• gamma rays

• visible light

• radio waves

• x-rays

Which statement BEST describes how scientific data are used to explain the origin of the universe?

• The relative number of hydrogen and helium atoms in the universe provides evidence that these atoms formed in stars.

• Red-shifted light from galaxies shows that the universe is expanding, so there must have been a beginning of the expansion.

• Red-shifted light from galaxies shows that the universe is in a steady state, so the universe is static and does not expand or contract.

• The relative number of hydrogen and helium atoms in the universe provides evidence that these elements have always been present.

Tags

NGSS.HS-ESS1-2

What is the primary reason for the cosmic microwave background radiation observed in the universe?

• It is caused by the scattering of light by cosmic dust.

• It is the result of black holes emitting radiation.

• It is the afterglow of the Big Bang.

• It is the result of the fusion of hydrogen in stars.

Tags

NGSS.HS-ESS1-2

The diagrams show a wave before and after more energy was applied. Compare the original wave with the new wave after the change. How did the characteristics of the wave change after the energy was applied? Circle TWO correct answers.

• The energy applied increased the frequency.

• The energy applied increased the amplitude.

• The energy applied increased the wavelength.

• The wavelength and frequency decreased after energy was applied.

• The amplitude remained the same before and after energy was applied.

Tags

NGSS.HS-PS4-1

Jessie and Ada plan an investigation to examine the effect on plant growth of exposure to only blue light. After reviewing their supplies, they realized that they only have a red light. Based on the pattern in the diagram, how do the characteristics of the red light they have compare to those of the blue light needed for their investigation? The blue light needed for the investigation has a __________ wavelength than the red light they have. The blue light also has a __________ frequency and __________ energy than the red light they have available to them.

Tags

NGSS.HS-PS4-1

Night vision goggles were invented in the 1930s and first used in World War II. They allow a person to “see” in the dark by converting radiated heat into visible light waves that the eyes can detect. Which statement explains how night vision goggles convert a type of electromagnetic radiation into a visible image?

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NGSS.HS-PS4-5

The properties of electromagnetic waves with different frequencies and energies make them useful for specific purposes that help humans. Connect the type of wave with the descriptions and their uses. Sort the answers below.

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NGSS.HS-PS4-1

NGSS.HS-PS4-4

NGSS.HS-PS4-5

Which statements provide evidence that supports the Big Bang model of the origin of the universe and which do not? Sort in to two categories.

Tags

NGSS.HS-ESS1-2

Which statements provide evidence that supports the Big Bang model of the origin of the universe and which do not? Write the letter of each answer in the correct box.

Tags

NGSS.HS-ESS1-2