Physics Review Part 3: Light

Which of the following types of waves can travel through a vacuum?

• sound

• light

• mechanical

• none of these

Tags

NGSS.HS-PS4-3

The 2 natures of light are ____.

• particle and wave

• particle and photon

• transverse and electromagnetic

Tags

NGSS.HS-PS4-3

A ray of light passes from water into air at a 43 degree angle of incidence. Which way does the angle of refraction bend?

• parallel to the normal

• toward the normal

• it does not bend

• away from the normal

Tags

NGSS.HS-PS4-3

Which of the following is NOT true when light passes from a medium of higher index of refraction to a medium of lower index of refraction.

• It changes frequency.

• It bends away from the normal.

• It speeds up.

• It has a longer wavelength.

Tags

NGSS.HS-PS4-1

Which of the following is CORRECT about the following illustration?

• Medium 1 has a greater optical density than medium 2

• Light travels faster through medium 2 than through medium 1

• Medium 2 has a greater index of refraction than medium 1

• Light bends away from the normal when it goes through medium 2

Tags

NGSS.HS-PS4-5

A light ray approaches a mirror at an angle of 34° with the mirror surface. What is the angle of reflection of this light ray?

• 34°

• not enough information

• 17°

• 68°

Tags

NGSS.MS-PS4-2

Jake catches the news on 780 AM, which broadcasts at 780. kHz. Determine the wavelength of these radio waves.

• 384,615 m

• 385 m

• 780 m

Tags

NGSS.HS-PS4-1

The correct order from least optically dense to most optically dense is _____

• water, air, diamond

• water, diamond, air

• air, water, diamond

• All 3 have the same optical density.

Tags

NGSS.MS-PS4-2

In which of the following media does light travel fastest?

• air

• water

• oil

• sapphire

Tags

NGSS.HS-PS4-1

If you wanted light going from air into a second material at a 45 degree angle to bend with the smallest angle of refraction possible, you would use _______.

• water over diamond

• the material with the highest index of refraction possible.

• red light over indigo light

• the material with the lowest optical density possible