Across
- 3. the SI unit of force. It is equal to the force that would give a mass of one kilogram an acceleration of one meter per second per second, and is equivalent to 100,000 dunes.
- 6. shorter wavelengths than visible light
- 8. the degree or intensity of heat present in a substance or object
- 10. an obscuring of the light from one celestial body by the passage of another between it and the observer or between it and its source of illumination.
- 13. vibrations that travel through the air or another medium and can be heard when they reach a person's or animal's ear.
- 15. how astronomers explain the way the universe began.
- 17. the vector sum of forces acting on a particle or object.
- 21. the force that attracts a body toward the center of the earth, or toward any other physical body having mass.
- 22. being in a state of balance
- 24. activity involving mental or physical effort done in order to achieve a purpose or result.
- 27. an imaginary line about which a body rotates.
- 28. firm and stable in shape; not liquid or fluid.
- 32. a vehicle's capacity to gain speed within a short time.
- 34. the SI unit of work or energy, equal to the work done by a force of one newton when its point of application moves one meter in the direction of action of the force, equivalent to one 3600th of a watt-hour.
- 35. a coherent, typically large body of matter with no definite shape.
Down
- 1. a person who directs the performance of an orchestra or choir
- 2. energy which a body possesses by virtue of being in motion
- 4. the central and most important part of an object
- 5. physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.
- 7. strength or energy as an attribute of physical action or movement.
- 9. the speed of something in a given direction
- 11. the rate at which someone or something is able to move or operate
- 12. the ability to do something or act in a particular way, especially as a faculty or quality.
- 14. an electromotive force or potential difference expressed in volts.
- 16. Rays penetrating electromagnetic radiation of a kind arising from the radioactive decay of atomic nuclei.
- 18. the resistance that one surface or object encounters when moving over another.
- 19. the capacity for doing work
- 20. the quality or condition of being hard.
- 23. take in or soak up (energy or a liquid or other substance) by chemical or physical action.
- 25. the colorless fluid part of blood, lymph, or milk, in which corpuscles or fat globules are suspended.an electromotive force or potential difference expressed in volts.
- 26. a roughly circular line, route, or movement that starts and finishes at the same place.
- 29. a semiconductor device with two terminals, typically allowing the flow of current in one direction only.
- 30. the space occupied within the boundaries of an object in three-dimensional space
- 31. Number the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.
- 33. a distinctive smell, especially an unpleasant one.