Across
- 3. a minute portion of matter.
- 5. Generated by a transmitter and then detected by a receiver.
- 7. Matter is composed of discrete units called atoms
- 8. Type of Negative energy
- 9. Energy that comes from a source and travels through space at the speed of light
- 11. A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
- 12. A direction or plane passing by a given point is said to be vertical if it contains the local gravity direction at that point
- 13. The ability to do work
- 15. The liquid portion of blood.
- 18. A characteristic of a substance that can be observed or measured without changing the identity of the substance
- 21. The temperature at which the particles in a substance are essentially motionless
- 22. A way for heat to move, also referred to as a heat transfer mechanism.
- 23. The rate at which someone or something is able to move or operate.
- 24. The part of the invisible spectrum that is contiguous to the red end of the visible spectrum and that comprises electromagnetic radiation of wavelengths from 800 nanometers to 1 millimeter.
- 25. A particle of matter that uniquely defines a chemical element
- 26. The force by which a planet or other body draws objects toward its center.
- 27. A material that experiences very little or no permanent, non-recoverable deformation before it fractures or breaks
- 28. A taxonomic rank in the classification of organisms between genus and order
- 29. The combined effect (the sum) of all the pushing and pulling forces actually acting on the object.
- 30. Speed of motion, action, or operation
Down
- 1. A single kind of matter that cannot be separated into other kinds of matter by any physical means
- 2. The segment of the electromagnetic spectrum that the human eye can view
- 4. A vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials
- 6. The substance of which a physical object is composed
- 10. The rate of change of velocity.
- 14. The segment of the electromagnetic spectrum that the human eye can view
- 16. A dimensionless quantity representing the amount of matter in a particle or object
- 17. Energy stored in the bonds of atoms and molecules.
- 19. How much space an object or substance takes up
- 20. Type of positive energy