Do Now & Announcements Take out HW to be checked Take out laptops, login and access average mass simulation, work on questions Unit 3 Quest Corrections due FRI 11/14

What do these 6 items all have in common?

Electromagnetic radiation - a form of energy that has wavelike properties - all forms found in the electromagnetic spectrum Examples of electromagnetic radiation: Xrays Microwaves Light waves Radio waves – when you hear static on the radio when you aren’t getting a signal, that is the leftover microwaves from the big bang 15 billion years ago (it is cooling off so now the waves are the energy and wavelength of radio waves)

ELECTROMAGNETIC RADIATION RADIO WAVES MICRO- WAVES INFRARED LIGHT VISIBLE LIGHT UV LIGHT X-RAYS LOWEST ENERGY HIGHEST ENERGY

Listening to music in the car using the radio RADIO WAVES Listening to music in the car using the radio

MICROWAVES Making popcorn

Using the remote control INFRARED LIGHT Using the remote control

The blue color of the sky VISIBLE LIGHT The blue color of the sky

ULTRAVIOLET LIGHT Using a tanning booth

X-RAYS Checking to see if the ankle was broken

Examples of Waves All EMR waves move following a specific pattern, but the energies and characteristics associated with the waves can vary

Determining Characteristics of a Wave Treat the slinkys/springs responsibly! Try your best to estimate the measurements Assume the length of 1 tile is 1 foot