8.8ab

Animal tracking is an important technique used to follow the movement of wild animals and to locate lost pets. One method is to implant a small device in the animal that can receive and send long-wavelength, low-energy radiation using global positioning satellites (GPS). Which type of electromagnetic wave would be best suited for this process?

• radio waves

• visible waves

• gamma waves

• ultraviolet waves

Tags

NGSS.HS-PS4-5

Galaxies are composed of __________, gas, and __________ held together by gravity. Some stars form in __________, which are large clouds of gas and dust.

Tags

NGSS.MS-ESS1-2

Which is the MOST accurate illustration of the sun’s location in the Milky Way galaxy?

• A

• B

• C

• D

How do scientific data support changes to scientific theories that describe the origin of the universe? Write the letter of ONE correct answer on each line. Not all answers will be used. At first, scientists thought the universe was static. However, __________ indicated that stars and planets are actually in motion. Next, scientists thought that the density of matter in the universe was static, but the __________ of near and distant galaxies did not support this model. Finally, scientists observed the __________, which is uniform and indicates a single area of origin for the universe.

Tags

NGSS.HS-ESS1-2

What is the primary reason for the redshift observed in light from distant galaxies?

• The light is being absorbed by interstellar dust.

• Galaxies are moving away from us.

• Galaxies are moving towards us.

• The light is being scattered by cosmic rays.

Tags

NGSS.HS-ESS1-2

Which type of electromagnetic wave is most commonly used in microwave ovens to heat food?

• radio waves

• microwaves

• infrared waves

• ultraviolet waves

Tags

NGSS.HS-PS4-5

What happens to the wavelength of a wave as its frequency increases?

• The wavelength increases.

• The wavelength decreases.

• The wavelength remains the same.

• The wavelength becomes infinite.

Tags

NGSS.HS-PS4-1

What is the effect on the speed of a wave as it moves from deep water to shallow water?

• The speed decreases.

• The speed increases.

• The speed becomes infinite.

• The speed remains constant.

Tags

NGSS.HS-PS4-1

Which type of electromagnetic wave is primarily used in remote controls for televisions?

• Infrared waves

• Microwaves

• Ultraviolet waves

• Radio waves

Tags

NGSS.HS-PS4-5

Which type of electromagnetic wave is primarily used in medical imaging to view the inside of the human body?

• X-rays

• Radio waves

• Infrared waves

• Microwaves