Abeka Physical Science Ch. 1-4

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Across
  1. 4. The speed at which air resistance stops a falling object from accelerating.
  2. 7. The study of motion and forces.
  3. 8. Defined as the amount of gravitational pull on an object.
  4. 9. The distance traveled by an object per unit of time.
  5. 12. The SI unit of power.
  6. 14. The attractive force that holds molecules of different substances together.
  7. 16. Unit prefix meaning “one thousand”.
  8. 19. A mathematical statement that two expressions are equal.
  9. 20. A device that uses confined liquid to multiply force.
  10. 24. An accepted theory that is verified by many observations and experiments and stands the test of time.
  11. 28. The principle which states that the buoyant force on an object is exactly equal to the weight of the fluid that is displaced.
  12. 29. Also called the law of inertia.
  13. 30. The SI unit of force
  14. 31. The state of matter that is practically unaffected by attractive forces between molecules.
  15. 32. A change that alters the type and identity of a substance is a _________ change.
  16. 36. The name of the curved surface that forms where a liquid touches the sides of a container.
  17. 38. The phenomenon in which liquids in a thin tube rise above or fall beneath their own levels.
  18. 40. The transfer of energy from one object to another by a force.
  19. 41. An object that hangs from a fixed point and swings back and forth because of gravity.
  20. 42. Interpreting data in a way that supports one’s own political, social, or economic views.
Down
  1. 1. The substance of the physical world.
  2. 2. A system of measurement, developed in France, that uses prefixes attached to base units to make new units.
  3. 3. The ability of a gas to be easily squeezed or compacted.
  4. 5. 0 Kelvin.
  5. 6. The rate of change in velocity.
  6. 10. The branch of science that is the study of interactions between matter and energy.
  7. 11. The SI unit of pressure.
  8. 13. The space relative to which motion is measured.
  9. 15. The closeness of a measurement to the quantity’s actual value.
  10. 17. The effect of nature of the surfaces has on friction is described by a(n) __________ of friction.
  11. 18. A fallacy that occurs when someone attacks the person making an argument instead of challenging the person’s facts, premises, or reasoning.
  12. 21. The most important factor that affects drag.
  13. 22. The property of matter that makes it resist change in motion.
  14. 23. The gravitational force exerted on an object near the surface of the earth or any celestial body is called ________.
  15. 25. A single scientist obtaining consistent results after performing an experiment many times.
  16. 26. A device used to measure atmospheric pressure.
  17. 27. The mathematical quantity that has both magnitude and direction.
  18. 33. A fallacy of deductive reasoning that occurs when a premise includes the assumption that the conclusion is true.
  19. 34. The state of matter that is a special type of gas that exists at extremely high temperatures.
  20. 35. of measure - A specific measure to which other measures are compared to ensure uniformity.
  21. 37. A force that causes objects to travel in a curved path rather than in a straight line is a(n) _________ force.
  22. 39. The sum of two or more vectors.