Across
- 1. a device that helps do work by either overcoming a force or changing the direction of the applied force
- 3. simple machine that consists of an inclined plane wrapped in a spiral around a cylindrical post
- 9. The distance from any point on a wave to an identical point on the next wave
- 12. a simple machine that is a straight, slanted surface, which facilitates the raising of loads; a ramp
- 15. a sample of matter, either a single element or a single compound, that has definite chemical and physical properties
- 18. a circuit in which the parts are joined in branches such that the potential difference across each part is the same.
- 19. a property of matter that describes a substance's ability to participate in chemical reactions
- 20. a force of attraction between objects that is due to their masses
- 21. groups of two or more atoms held together by chemical bonds
- 22. the energy that an object has because of the position, shape, or condition of the object
- 24. matter with a definite shape and volume
- 26. a testable idea or explanation that leads to scientific investigation
- 29. a wave consisting of electric and magnetic fields oscillating at right angles to eachother
- 33. a change from one state (solid or liquid or gas) to another without a change in chemical composition
- 34. a measure of the amount of matter in an object
- 35. The rate at which velocity changes over time.
- 36. the smallest component of an element having the chemical properties of the element
- 37. the law that states that mass cannot be created or destroyed in ordinary chemical and physical changes
- 40. a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope
- 41. a longitudinal wave that is caused by vibrations and that travels through a material medium
- 42. the rate at which charges pass through a given point; measured in amperes
- 44. A combination of two or more substances that are not chemically combined
- 46. a periodic disturbance in a solid, liquid, or gas as energy is transmitted through a medium
- 47. any pieces of information acquired through observation or experimentation
- 51. a characteristic of a substance that does not involve a chemical change, such as density, color, or hardness
- 56. the ratio of the mass of a substance to the volume of the substance
- 57. the energy transferred between objects that are at different temperatures
- 58. a substance that cannot be separated or broken down into simpler substances by chemical means
- 60. a push or pull exerted on an object
- 61. an object's change in position relative to a reference point
Down
- 1. the process whereby heat changes something from a solid to a liquid
- 2. a force that opposes motion between two surfaces that are in contact
- 4. a solid that forms from a solution during a chemical reaction
- 5. a change that occurs when one or more substances change into entirely new substances with different properties
- 6. The transfer of energy carried by light waves to particles of matter.
- 7. the capacity of a physical system to do work
- 8. the transfer of energy by electromagnetic waves
- 10. The force of attraction or repulsion on a charged particle that is due to an electric field
- 11. a circuit in which the parts are joined one after another such that the current in each part is the same
- 13. a change in the direction of a wave when the wave finds an obstacle or an edge, such as an opening
- 14. simple machine with a rigid bar that pivots around a fulcrum
- 16. the conversion of a liquid to a vapor when the vapor pressure of the liquid equals the atmospheric pressure
- 17. the law that states that energy cannot be created or destroyed but can be changed from one form to another
- 23. the tendency of an object to resist being moved or, if the object is moving, to resist a change in speed or direction until an outside force acts on the object
- 25. the action that results when a force causes an object to move in the direction of the force
- 27. the speed of an object in a particular direction
- 28. the energy of an object that is due to the object's motion
- 30. the force of attraction or repulsion generated by moving or spinning electric charges
- 31. A state of matter with no definite shape or volume
- 32. the maximum distance that the particles of a wave's medium vibrate from their rest position
- 34. a pattern, plan, representation, or description designed to show the structure or workings of an object, system, or concept
- 38. a simple machine consisting of two circular objects of different sizes; the wheel is the larger of the two circular objects
- 39. anything that has mass and takes up space
- 43. a substance made up of atoms of two or more different elements joined by chemical bonds
- 45. a system of ideas that explains many related observations and is supported by a large body of evidence acquired through scientific investigation
- 48. the highness or lowness of a sound
- 49. any material that attracts iron or materials containing iron
- 50. the bouncing back of a ray of light, sound, or heat when the ray hits a surface that it does not go through
- 52. the transfer of thermal energy by the circulation or movement of a liquid or gas
- 53. matter that has a definite volume but no definite shape
- 54. the bending of a wave as the wave passes between two substances in which the speed of the wave differs
- 55. a simple machine that is made up of two inclined planes and that moves; often used for cutting
- 59. a physical environment in which phenomena occur