PHYSICS
Unit 7, Chapter 21
Electric Charge and Forces Unlike charges attract (+ and -) Like charges repel (- and -) (+ and +) The electric force depends on the charge and distance.
6:00–7:00PM THU 11 MAR: Second Exam (Chapters 24.9-28.8 / HW04-06) Room Lockett 6
Forces By the early 19th century, physicists had classified the apparent myriad of forces in nature to just 3 kinds: – Gravitational force – Electric force.
Electric Charge O All ordinary matter contains both positive and negative charge. O You do not usually notice the charge because most matter contains the.
Unit 7, Chapter 21 CPO Science Foundations of Physics.
Lecture 25: MON 16 MAR Magnetic fields Ch.28.1–4 Physics 2113 Jonathan Dowling “I’ll be back…. Aurora Borealis.
Electricity and Magnetism
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