If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content
NGSS:
MS‑PS4‑1
,
MS‑PS4‑2
,
MS‑PS4‑3
,
MS‑PS4.A.1
,
MS‑PS4.A.2
,
MS‑PS4.A
,
MS‑PS4.B.1
,
MS‑PS4.B.2
,
MS‑PS4.B.3
,
MS‑PS4.B.4
,
MS‑PS4.B
,
MS‑PS4.C

0

Possible mastery points
How can waves own properties? They're just repeating patterns of energy.
NGSS:
MS‑PS4‑1
,
MS‑PS4.A.1
,
MS‑PS4.A

Practice

In space, no one can hear you scream.
NGSS:
MS‑PS4‑2
,
MS‑PS4.A.1
,
MS‑PS4.A.2
,
MS‑PS4.A
,
MS‑PS4.B.4
,
MS‑PS4.B
Level up on the above skills and collect up to 240 Mastery points
Bending light is so easy, you can do it with a glass of water!
NGSS:
MS‑PS4‑2
,
MS‑PS4.B.1
,
MS‑PS4.B.2
,
MS‑PS4.B.3
,
MS‑PS4.B
Absorb and reflect? Who knew physics and philosophy were so closely related?
NGSS:
MS‑PS4‑2
,
MS‑PS4.B.1
,
MS‑PS4.B.2
,
MS‑PS4.B
Level up on the above skills and collect up to 240 Mastery points
If analog signals were a person, digital signals would be their cooler, more reliable friend.
NGSS:
MS‑PS4‑3
,
MS‑PS4.C.1
,
MS‑PS4.C
Up next for you:

Unit test

Level up on all the skills in this unit and collect up to 800 Mastery points!

About this unit

This unit explores different types of waves and digital signals. Learn about different properties of a wave, the difference between mechanical waves and light waves, different wave behaviors and what digital signals are.