Across
- 3. negatively charged
- 5. german theoretical physicist
- 7. divide speed of wave by wavelength
- 8. mass divided by volume
- 10. body of matter with no shape
- 13. product of mass and velocity
- 14. has an atomic number
- 15. power by physical or chemical resources
- 16. resistance
- 17. electromagnetic radiation seen by human eye
- 18. attraction towards the center of the earth
- 20. SI unit of of electric current
Down
- 1. ice is an example of this state of water
- 2. rate of change of velocity of an object
- 4. resistance to change in state of motion
- 6. force per unit area
- 9. disturbance or oscillation
- 11. speed in a given direction
- 12. heaviness of a person or thing
- 19. smallest unit of matter