physics

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Across
  1. 6. Machine :One of six basic machine types of machines which are the basis for all other forms of machines
  2. 9. :The transfer of energy to a body by the application of a force that causes the body to move in the direction of the force
  3. 11. Velocity :The constant velocity of a falling object when the force of air resistance is equal in magnitude and opposite in direction to the force of gravity
  4. 13. : is a measure of how hot (or cold) something is; specifically; a measure of average kinetic energy of the particles in an object
  5. 14. : The rate at which velocity changes over time; an objects accelerates if its speed, direction or both change
  6. 15. : objects change in position relative to a reference point
  7. 19. : an Instrument that measures and indicates temperature
  8. 20. :The energy that is transferred as electromagnetic waves, such as visible light and infrared waves
  9. 23. Fall :the motion of a body when only the force of gravity is acting on the body.
  10. 25. Heat :The quantity of heat required to raise a unit of mass of homogeneous material 1oK or 1oC in a specific way given constant pressure and volume
  11. 27. :A quantity, usually expressed as a percentage that measures the ratio of useful work output to work input
  12. 28. Engine :A machine that transform heat into mechanical energy or work.
  13. 30. : The speed of an object in a particular direction
Down
  1. 1. : the distance traveled by the time interval during which the motion occurred
  2. 2. Zero :The temperature at which molecular energy is a minimum 0oK on the Kelvin scale or -273.16oC on the Celsius scale
  3. 3. :A quantity that measures the rate at which work is done or energy is transformed
  4. 4. :The change in position of an object
  5. 5. Friction: The force that resists the initiation between two surfaces that are in contact and at rest
  6. 7. Motion :the curved path that an object follows when thrown, launched, or otherwise projected near the surface of he earth; the motion of objects that are moving in two dimensions under the influence of gravity
  7. 8. :The movement of matter due to differences in density that are caused by temperature variations
  8. 10. Friction : The force that opposes the movement of two surfaces that are in contact with each other and are sliding over each other
  9. 12. :A material used to cool an area or object to a temperature that is lower than the temperature of the environment
  10. 16. :The tendency of an object to resist being moved or, if the object is moving, to resist a change in speed or direction until and outside force acts on the object.
  11. 17. Energy :The amount of work an object can do because of the object’s kinetic and potential energy
  12. 18. : an action exerted on a body in order to change the body’s state of rest or motion; force has magnitude and direction
  13. 21. :A quantity defined as the product of the mass and the velocity of an object
  14. 22. Energy :The energy an object has because of position, shape or condition of the object
  15. 24. :the energy transferred between objects that are at different temperatures
  16. 26. Machines :A machine made of more that one simple machine
  17. 29. Conduction :The transfer of energy as heat through a material