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
AP Physics:
SYS (BI)
,
SYS‑1.A (EU)
,
SYS‑1.A.1 (EK)
,
SYS‑1.A.5 (EK)
,
SYS‑1.A.5.1 (LO)
AP Physics:
INT (BI)
,
INT‑3.C (EU)
,
INT‑3.C.4 (EK)
,
INT‑3.C.4.1 (LO)
,
INT‑3.C.4.2 (LO)
AP Physics:
SYS (BI)
,
SYS‑1.C (EU)
,
SYS‑1.C.1 (EK)
,
SYS‑1.C.1.1 (LO)
,
SYS‑1.C.3 (EK)
,
SYS‑1.C.3.1 (LO)

About this unit

This unit explores forces and their effects on objects. Learn about systems, gravity, contact forces, and Newton's laws.