Forces and Fields
• Gravitational
• Electromagnetic
• Strong Nuclear
• Weak Nuclear
Fundamental Forces- Weakest, attractive, affects anything with mass, long range (infinite)
- 2nd Strongest, attractive/repulsive, affects anything with charge/magnetic properties, long range (infinite)
- Strongest, attractive, holds nuclei together, short range (within the nucleus)
- 3rd Strongest, neither attractive or repulsive, changes nucleus, short range (within the nucleus)
Fields
• An invisible agent for transmitting a force across empty space
• Allows for action at a distance
Earth’s Gravitational Field
Earth’s magnetic field
Earth’s Magnetic Field
Earth’s Magnetic Field
Earth’s Magnetic Field
Aurora Borealis
Aurora Over White Dome Geyser 2012