Across
- 4. The point on the axis of a lens or mirror to which parallel rays of light converge or from which they appear to diverge after refraction or reflection.
- 9. A chemical formula of a molecular compound that shows the kinds and numbers of atoms present in a molecule of a compound.
- 10. A neutral group of atoms joined together by covalent bonds
- 11. the branch of physics which involves the behavior and properties of light
- 13. A ray of light that strikes a surface. The angle between this ray and the perpendicular or normal to the surface is the angle of incidence.
- 17. Attractions between molecules caused by the electron motion on one molecule affecting the electron motion on the other through electrical forces.
- 19. A primary cell having a liquid electrolyte
- 23. A structural or procedural diagram, especially of an electrical or mechanical system
- 27. A covalent bond between atoms in which the electrons are shared unequally.
- 31. It has a North and South pole.
- 32. The two weakest intermolecular attractions - dispersion interactions and dipole forces
- 35. A covalent bond in which the bonding electrons are most likely to be found in sausage-shaped regions above and below the bond axis of the bonded atoms.
- 39. When two or more forces act on an object and do not cancel each other left
- 42. a bond formed when two atoms share a pair of electrons
- 46. ORBITAL An orbital that applies to the entire molecule
- 48. an electromotive force or potential difference expressed in volts
- 53. A covalent bond in which three pairs of electrons are shared by two atoms
- 54. An electric current flowing in one direction only
- 57. Curved like a segment of the interior circle.
- 60. Distance divided by time
- 64. the energy required to break the bond between two covalently bonded atoms.
- 66. The area around a magnet where a magnetic force can be detected
- 68. A bond in which two atoms share two pairs of electrons
- 72. Electric discharge resulting from the accumulation of electric charge on an insulated body.
- 74. Prevents an object from moving when a force is applied
- 75. Force that pushes back when you are pushing, sliding, or rolling something
- 76. Speed and direction of a moving object
- 77. Number of times the input force is multiplied by a machine
- 79. When a beam of light crosses the boundary between a vacuum and another medium, or between two different media, the wavelength of the light changes, but the frequency remains constant.
- 81. A compound that is composed of molecules.
- 83. Slows down an object that is in motion
- 85. A piece of magnetic material that retains its magnetism after it is removed from a magnetic field
- 86. To scatter or cause to scatter; disseminate; disperse.
- 88. The change in direction of a propagating wave, such as light or sound
- 89. Force that exists between any two objects that have mass
- 92. A chemical formula that shows the arrangement of atoms in a molecule or polyatomic ion
- 93. Energy stored in an object because of no movement
- 94. One of the two or more equally valid electron dot structures of a molecule or polyatomic ion
- 95. A molecule in which one side of the molecule is slightly negative and the opposite side is slightly positive
- 96. Force exerted by a machine to overcome some type resistance
- 97. A molecule consisting of two atoms
- 98. A device used to transfer electric energy from one circuit to another, especially a pair of multiply wound, inductively coupled wire coils that effect such a transfer with a change in voltage, current, phase, or other electric characteristics.
- 99. one of the basic properties of the elementary particles of matter giving rise to all electric and magnetic forces and interactions.
- 100. Another word for rainbow
- 101. The opposition of a body or substance to current passing through it, resulting in a change of electrical energy into heat or another form of energy.
Down
- 1. a covalent bond between atoms in which the electrons are shared unequally
- 2. a cell in which the electrolyte exists in the form of a paste, is absorbed in a porous medium, or is otherwise restrained from flowing.
- 3. A pair of valence electrons that is not shared between atoms.
- 5. Cause of an object to speed up, slow down, or turn
- 6. Having a surface that is curved or rounded outward.
- 7. The combination of all forces acting upon an object
- 8. A two-dimensional surface, any two of whose points can be joined by a straight line that lies entirely in the surface.
- 12. A tightly bound group of atoms that behaves as a unit and has a positive or negative charge
- 14. Acceleration happens when a net force acts on a mass
- 15. A bond angle of 109.5 degrees that results when a central atom forms four bonds directed toward the center of a regular tetrahedron
- 16. States that a the momentum of objects that collide with each other doesn't change
- 18. An object at rest will stay at rest, an object in motion will stay in motion
- 20. You can hear it
- 21. A molecular orbital that can be occupied by two electrons of a covalent bond.
- 22. Is usually formulated as V = IR, where V is the potential difference, or voltage, I is the current, and R is the resistance of the conductor.
- 24. The International System unit of electric potential and electromotive force, equal to the difference of electric potential between two points on a conducting wire carrying a constant current of one ampere when the power dissipated between the potential
- 25. A magnet consisting essentially of a coil of insulated wire wrapped around a soft iron core that is magnetized only when current flows through the wire.
- 26. Thermal energy is the energy a substance or system has related to its ___________________.
- 28. the passage of electricity through a conductor
- 29. The angle between the surface normal and the reflected ray
- 30. The angle which the indecent ray makes the normal equal to the angle and the reflected Ray make the same normal.
- 33. A ray that does not propagate in a plane that contains both the object point and the optical axis.
- 34. base unit for electrical current.
- 36. When two or more forces act on an object and cancel each other out
- 37. intermolecular forces resulting from the attraction of oppositely charged regions of polar molecules.
- 38. All of the kinetic energy due to random motion of the particles that make up an object.
- 40. A molecule that has two poles, or regions, with opposite charges.
- 41. A bond formed when two atomic orbitals combine and form a molecular orbital that is symmetrical around the axis connecting the two atomic nuclei.
- 43. Gravitational force between yourself and Earth
- 44. Valence-shell electron-pair repulsion theory; because electron pairs repel, molecules adjust their shapes so that valence electron pairs are as far apart as possible.
- 45. A solid in which all of the atoms are covalently bonded to each other.
- 47. To move, lie, or extend in different directions from a common point; branch off.
- 49. attractive forces in which a hydrogen covalently bonded to a very electronegative atom is also weakly bonded to an unshared electron pair of another electronegative atom
- 50. An electric circuit connected so that current passes through each circuit element in turn without branching
- 51. The warmer/hotter something is the more _____________________ it’s Particles/molecules have.
- 52. the mixing of several atomic orbitals to form the same total number of equivalent hybrid orbitals
- 55. A covalent bond in which one atom contributes both bonding electrons.
- 56. a covalent bond in which the electrons are shared equally by the two atoms
- 58. a flow of electric charge
- 59. any phenomenon associated with stationary or moving electrons, ions, or other charged particles
- 61. the process by which electrical or magnetic properties are transferred, without physical contact, from one circuit or body to another
- 62. Force exerted on a machine
- 63. A closed circuit in which the current divides into two or more paths before recombining to complete the circuit
- 65. A material that a magnet has made magnetic.
- 67. To tend to meet in a point or line; incline toward each other, as lines that are not parallel.
- 69. electric current that reverses its direction of flow in a regular pattern
- 70. Speed of an object at an instant
- 71. A push or pull
- 73. Every action has an opposite and equal reaction
- 78. A ray that passes through the axis of an optical fiber.
- 80. A bond formed by the sharing of electrons between atoms.
- 82. Used to find which direction to travel. This uses magnets
- 84. Man who established the Three Laws of Motion
- 87. Upward force by a fluid when an object is placed in the fluid
- 90. Ability for an object to resist change in its motion
- 91. product of mass and velocity