Across
- 2. 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
- 6. Engine: A machine that transforms heat into mechanical energy or work
- 8. 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
- 10. Conduction: The transfer of energy as heat through a material
- 11. A quantity defined as the product of the mass and the velocity of an object
- 13. The energy that is transferred as electromagnetic waves, such as visible light and infrared waves
- 14. A quantity, usually expressed as a percentage that measures the ratio of useful work output to work input
- 17. The movement of matter due to differences in density that are caused by temperature variations
- 18. The rate at which velocity changes over time; an objects accelerates if its speed, direction or both change
- 21. the distance traveled by the time interval during which the motion occurred
- 22. Current: The vertical movement of air currents due to temperature variations
- 23. Friction: The force that opposes the movement of two surfaces that are in contact with each other and are sliding over each other
- 25. Energy: The energy an object has because of position, shape or condition of the object
- 27. objects change in position relative to a reference point
- 28. Machine: One of six basic machine types of machines which are the basis for all other forms of machines
- 29. the energy transferred between objects that are at different temperatures
Down
- 1. an action exerted on a body in order to change the body’s state of rest or motion; force has magnitude and direction
- 3. 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
- 4. Energy: The amount of work an object can do because of the object’s kinetic and potential energy
- 5. The change in position of an object
- 7. 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
- 9. is a measure of how hot (or cold) something is; specifically; a measure of average kinetic energy of the particles in an object
- 12. Fall: the motion of a body when only the force of gravity is acting on the body.
- 15. an Instrument that measures and indicates temperature
- 16. Machines: A machine made of more that one simple machine
- 19. The speed of an object in a particular direction
- 20. 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.
- 24. Friction: The force that resists the initiation between two surfaces that are in contact and at rest
- 26. A quantity that measures the rate at which work is done or energy is transformed