Across
- 2. - the action or process of moving or being moved.
- 5. -the infrared region of the spectrum; infrared radiation.
- 8. -the rate at which someone or something is able to move or operate.
- 9. -the fourth letter of the Greek alphabet ( Δ, δ ), transliterated as ‘d’.
- 11. -increase in the rate or speed of something.
- 12. - The branch of science concerned with the nature and properties of matter and energy.
Down
- 1. the process by which a beam of light or other system of waves is spread out as a result of passing through a narrow aperture or across an edge, typically accompanied by interference between the wave forms produced.
- 3. -the third letter of the Greek alphabet ( Γ, γ ), transliterated as ‘g.’.
- 4. -the throwing back by a body or surface of light, heat, or sound without absorbing it.
- 6. - an amount of space between two things or people.
- 7. -reduction in speed or rate.
- 10. -strength or energy as an attribute of physical action or movement.