Across
- 3. Made a revolutionary discovery that the earth was magnetic and theorized that electricity and magnetism are not the same
- 4. Space based navigation system that provides geographical position and time
- 12. Applied Maxwell's theories to the production and reception of radio wave
- 16. Some washing powder contains ___________ chemicals which glow in sunlight
- 18. Developed a scientific theory to explain EM waves
- 19. Is a detection system used to determine the range; angle or velocity of objects
- 20. Are bundles of wave energy
Down
- 1. Developed Coulomb's law
- 2. One of its uses in medicine is endoscope
- 5. Microwaves in a microwave oven penetrate and agitate the water molecules
- 6. Unit of frequency
- 7. Produce by a charge that changes its speed and direction
- 8. Uses LED lights to transmit signals to control devices
- 9. Unit of electric current
- 10. Enables us to see things around us
- 11. Discovered electromagnetic induction
- 13. Produced by making electrons vibrate
- 14. EM wave is a type of __________ wave
- 15. A cellphone is a radio transmitter and receiver that uses microwaves
- 17. Created as a result of vibrations between electric field and magnetic field.