Four Fundamental Forces
Strong Force Holds atomic nuclei together Protons have a positive charge, so they repel each other Strong force holds them together
Weak Force Particle decay Ex: Nuclear fusion (sun shining) Liquid outer core (radioactive decay) Volcanoes Earthquakes Plate tectonics
Electromagnetism Works with charges (+ or -) Static and magnets Repel each other: + & +, - & - Attract: + & - Ex: Light, Radio/TV Lightening Friction, Balloon sticking Formation of Solar System Earth’s Magnetic Field
Gravitational Newton Einstein Everything in universe that has mass attracts to everything else that has mass Depends on distance Objects that have mass/energy distort space time (fabric) Gravity can bend light (energy) if object has enough mass
Give me an example for each type of force within the classroom. Summary Give me an example for each type of force within the classroom. Strong Weak Electromagnetism Gravitational
Four Forces Foldable P. 20 On outside flap: Under flap: Picture Under flap: 2-3 facts about force Inside foldable: Type of force