TEST : Physics grade 8 - Light and Sound Wave

What is meant to be a monochromatic light ?

• Single wavelength

• Black and White

• Single color

• Single wavelength and color

Tags

NGSS.HS-PS4-1

What happen to light when it strikes: Black paper White paper

• reflection, refraction

• absorbtion, refraction

• absorbtion, difussion

• reflection, diffusion

Tags

NGSS.MS-PS4-2

What is the difference between violet and red light?

• violet longest wavelength

  red shortest wavelength

• violet shortest wavelength

  red longest wavelength

• violet transverse

  red longitude

• violet is color after red

What evidence that light travels through a straight lines ?

• Sun

• Mirror

• Lenses

• Lasers

Tags

NGSS.MS-PS4-2

Absorbtion is a type of reflection that happen in a ________.

• Paper surface

• Mirror surface

• Prism surface

• Black surface

Tags

NGSS.MS-PS4-2

Light is an _________ waves, while sound is a ___________ wave.

• Spectrum , Audio

• Electromagnetic , Mechanical

• Magnetic, Longitudinal

• Longitudinal, magnetic

Tags

NGSS.MS-PS4-1

Light is the fastest thing there is, with a speed of _______ km/s in vacuum state.

• 100,000

• 200,000

• 300,000

• 400,000

What phenomenon describes bending of light as it passes from one medium to the other ?

• Diffraction

• Refraction

• Reflection

• Interference

Tags

NGSS.MS-PS4-2

The amplitude of sound related to its:

• Frequency

• Wavelength

• Volume

• Speed

Tags

NGSS.MS-PS4-1

Which color of the light have the shortest wavelength ?

• Red

• Green

• Blue

• Violet