Waves, Light, and Sound

When scientists talk about white light, they are MOST likely referring to light that is

• a combination of all of the colors in the visible region of the electromagnetic spectrum.

• the unabsorbed refracted light produced by a black light.

• the narrow band corresponding to white light in the electromagnetic spectrum.

• a combination of all the types of electromagnetic radiation.

Which color of light is produced when all of the colors of visible light in the electromagnetic spectrum are combined?

• gray
• white
• black

Which of the following statements BEST describes visible light?

• Light is an electromagnetic wave of a single frequency that makes up a small part of the electromagnetic spectrum.
• Light is an electromagnetic wave of a single frequency that makes up most of the electromagnetic spectrum.
• Light includes a range of electromagnetic waves that make up a small part of the electromagnetic spectrum.
• Light includes a range of electromagnetic waves that make up most of the electromagnetic spectrum.
  

Tags

NGSS.HS-PS4-4

Visible light is which type of wave?

• seismic
• mechanical
• longitudinal
• electromagnetic

Tags

NGSS.MS-PS4-1

Light waves are arranged in the electromagnetic spectrum by

• wavelength and brightness.
• speed and color.
• brightness and color.
• wavelength and frequency.
  

Tags

NGSS.HS-PS4-1

Which of these colors of visible light has the shortest wavelength?

• red
• green
• violet
• yellow

Which of these illustrates that sound waves can travel through a liquid?

• Voices can be heard as people speak to one another.
• Whales and porpoises signal each other by making sounds.
• Astronauts can’t hear each other in space unless they use a radio.
• Footsteps can be heard through the ceiling as someone walks on the roof.
  

Tags

NGSS.MS-PS4-2

An echo is a sound wave that has been

• absorbed.
• refracted.
• scattered.
• reflected

Tags

NGSS.MS-PS4-2

Which is a source of sound?

• thermal energy
• potential energy
• a vibration
• a medium
  

Sound waves are _____.

• longitudinal

• transverse

• partly longitudinal and partly transverse

• sometimes longitudinal and sometimes transverse