What have we learned so far? Waves

What are the TWO TYPES of waves?

Answer explanation

We have MECHANICAL (like sound) and ELECTROMAGNETIC (like light) waves

Tags

NGSS.MS-PS4-1

Which TYPE(s) of wave CAN travel through a medium/material/substance?

• Mechanical

• Electromagnetic

Answer explanation

BOTH types of waves can travel through a medium!

Tags

NGSS.HS-PS4-1

Which TYPE(s) of wave does NOT need a medium to travel?

• Mechanical

• Electromagnetic

Answer explanation

Only ELECTROMAGNETIC waves can travel through empty space!

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NGSS.HS-PS4-3

Sound waves are a type of mechanical wave. Through which of these substances CAN sound waves travel?

• Water

• Air

• Metal

• Space

Answer explanation

Sound waves can only travel through a medium so they CANNOT travel through space!

Tags

NGSS.MS-PS4-2

Through which state of matter does sound travel FASTEST?

• Liquids

• Gases

• Solids

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which of these is NOT an example of an electromagnetic wave?

• Sound

• Gamma

• Visible Light

• Radio

Tags

NGSS.MS-PS4-1

The part of the electromagnetic spectrum that we can detect with our eyes is called:

Answer explanation

It is called VISIBLE light because we can SEE it (it is VISIBLE)

What wave property/properties determine what COLOR we see?

• Frequency

• Direction

• Strength

• Wavelength

What is REFLECTION?

• the separation out of waves as they pass through an obstacle or opening

• the transfer of energy of a wave into a medium as the wave passes through

• when waves bounce off the surface of an object in one direction

• when waves bounce off the surface of an object in multiple directions

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NGSS.MS-PS4-2

What is REFRACTION?

• the separation out of waves as they pass through an obstacle or opening

• when waves bounce off the surface of an object in multiple directions

• when waves pass through a medium

• the bending of light as it changes speed moving from one medium/material to another

Tags

NGSS.MS-PS4-2