1. Forces and Fields

2. Fundamental Forces Gravitational Electromagnetic Strong Nuclear
Weak Nuclear
- 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)

3. Fields An invisible agent for transmitting a force across empty space
Allows for action at a distance

4. Earth’s Gravitational Field

5. Magnetic Field

6. Earth’s magnetic field

7. Earth’s Magnetic Field

8. Earth’s Magnetic Field

9. Earth’s Magnetic Field

10. Earth’s Magnetic Field

11. Aurora Borealis

12. Aurora Over White Dome Geyser 2012

13. Aurora from Space