Physics

5. transfer of heat related to the movement that occurs within a fluid due to the rising of hotter materials paired with the sinking of colder materials
6. range of frequencies of electromagnetic radiation and their respective wavelengths and photon energies
7. when two or more unequal forces act on an object
8. refers to the duration in which a complete wave cycle is achieved
10. the neutral atoms likelihood of gaining an electron
11. spreading of waves around an obstacle
13. answers the question "how fast an object moves or travels?"
17. type of sound that cannot be perceived by people
18. when light is directed at metal, the photons collide with the atoms. If the photons frequency is sufficient to knock off an electron, the collision produces the _
19. an object is in _, if it changes position relative to a reference point

1. number of digits in a quantity, often a measurement that contribute to the degree of accuracy of the value
2. defined as the rate at which an object changes its velocity
3. reaction that releases energy in the form of heat or light
4. movement of particles of matter
9. charging by _ happens when charges in an uncharged object are rearranged without direct contact with a charged object
10. also known as line of origin
12. a short, non-periodic, wave formed by a single input of energy
14. image from sound
15. any substance that allows sound waves to travel through
16. energy that is transferred from one body to another