1.15 Tour of the EM Spectrum

The longest wave on the EM spectrum:

• Radio Waves

• Gamma Waves

• UV Waves

• Microwaves

The shortest wave on the EM spectrum:

• Radio Waves

• Gamma Waves

• UV Waves

• Microwaves

What does it mean when waves are ionizing?

• High energy waves knock electrons off of atoms to create ions.

• Low energy waves attract electrons and turn waves into ions.

• High every waves are ions.

• Low energy waves are ions.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

Exposure to high energy waves...

• have no effect on cells of the body.

• are okay to look directly at.

• can alter atoms and molecules and cause damage to cells.

• are the same as low energy waves.

Tags

NGSS.MS-PS4-2

NGSS.MS-PS4-1

What protects us from the high energy waves produced by the sun?

• We do not need protection from solar waves.

• Earth's atmosphere.

• Space.

• The moon.

Satellites that observe objects in space need to be positioned above Earth's atmosphere in order to see distant objects in space. Why is this?

• Earth's atmosphere blocks most waves.

• The color of the sky is too bright for satellites to see through it.

• Satellites are too big to keep on Earth's surface.

• There actually isn't anything to see in space.

Tags

NGSS.MS-PS4-2

What do electrons and protons create when they move?

• Ions

• Wind

• Electromagnetic Fields

• Sound

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Why can't sound travel in space?

• Space is a vacuum, which means there is nothing for sound to travel through.

• There is so much space that sounds just travels away really fast.

• There are too many waves in space, so sound can't move anywhere.

• Stars and planets absorb sound, so you can't hear anything.

What is the name of a particle of light?

• Electrons

• Photons

• Protons

• Waves

What is the mass of a photon?

• Zero

• Same as an electron

• A tiny a amount

• A large amount

Tags

NGSS.HS-PS4-3