Physical Science

In the Wave model of light, propagation can be described when an electromagnetic wave transfer its __________ from one point to another.

• momentum

• energy

• intensity

• both energy and momentum

Tags

NGSS.MS-PS4-1

What is the separation of white light into its component colors arranged according to its frequency?

• diffraction

• dispersion

• interference

• scattering   

What are the components of a white light?

• ROYGBIV colors

• magenta, cyan, yellow     

• indigo, blue, violet

• red, blue, yellow

What light will you consider if you are to expose a very light-sensitive specimen?

• any color of light can be used

• light of low-frequency

• light of high-frequency

• none of the above

Mirage is the apparent _____________ of the sky in water due to the refraction of light.

• polarization

• refraction    

• diffraction

• reflection

What is the speed of a radio wave?

• 3 x 10⁸ m/s

• 3 x 10¹² m/s

• 343.2 m/s

• 330 m/s

In the Wave model of light, the reflection of light waves results to?

• image formation

• diffraction of light waves  

• propagation of light waves

• both last two choices are correct

Tags

NGSS.MS-PS4-2

Why do we get easily sunburned in ultraviolet but not in visible light?

• Ultraviolet light has a lower frequency compared to visible light.

• Ultraviolet light has a lower photon energy compared to visible light.

• Ultraviolet light has a higher frequency compared to visible light.

• None of the above.

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

How are radio waves created?

• by the oscillation of magnetic waves in radio antennas

• by the oscillation of magnets in radio antennas

• by the oscillation of electric waves in radio antennas

• by the oscillation of electric current in radio antennas

What causes mirages?

• bending of light ray

• reflection of light ray

• polarization of light ray

• diffraction of light ray      

Tags

NGSS.MS-PS4-2