Across
- 6. Conductivity, The degree to which a certain material conducts electricity, calculated as the ratio of the current density in the material to the electric field which causes the flow of current.
- 9. The phenomenon in which an object changes its position over time.
- 10. Energy, The energy that is stored in an object due to its position relative to some zero position.
- 11. The branch of science concerned with the nature and properties of matter and energy.
- 12. Energy, A kind of kinetic energy that has the ability to make types of light visible to the human eye.
- 13. Wave, A wave of compression and rarefaction, by which sound grows in an elastic medium (such as air).
- 14. The resistance to motion of one object moving relative to another. This is not a fundamental force, like gravity or electromagnetism.
- 17. A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
- 18. The process of causing a material or object to melt with intense heat so as to join with another.
- 19. Energy, The energy released during nuclear fission or fusion, especially when used to generate electricity.
Down
- 1. Energy, The energy that is possessed by an object due to its motion or due to its position.
- 2. Energy, The energy that produces heat.
- 3. The force that attracts a body towards the center of the earth or towards any other physical body having mass.
- 4. Energy, An energy that is associated with gravity.
- 5. The process by which green plants and certain other organisms transform light energy into chemical energy.
- 7. The property of matter and radiation which is manifest as a capacity to perform work (such as causing motion or the interaction of molecules).
- 8. Energy, The energy you get when electrons flow from place to place, it can then power things like heaters, lightbulbs and computers.
- 10. Tiny forms of matter.
- 15. Energy, The energy an object has due to its motion.
- 16. Energy, The energy produced by vibrating sound waves.