Science learning Project Coach T
Terms in this set (12)
1.) is a machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum.
2.) rigid bar resting on a pivot, used to help move a heavy or firmly fixed load with one end when pressure is applied to the other
Wheel and Axle
1.) is one of six simple machines identified by Renaissance scientists drawing from Greek texts on technology.
2.) a simple lifting machine consisting of a rope that unwinds from a wheel onto a cylindrical drum or shaft joined to the wheel to provide mechanical advantage.
1.) is a wheel on an axle or shaft that is designed to support movement and change of direction of a taut cable, supporting shell is referred to as a block.
2.) a wheel with a grooved rim around which a cord passes. It acts to change the direction of a force applied to the cord and is chiefly used (typically in combination) to raise heavy weights.
1.) a ramp, is a flat supporting surface tilted at an angle, with one end higher than the other, used as an aid for raising or lowering a load. The inclined plane is one of the six classical simple machines defined by Renaissance scientists.
2.) a plane inclined at an angle to the horizontal
1.) is a triangular shaped tool, and is a portable inclined plane, and one of the six classical simple machines.
2.) a piece of wood, metal, or some other material having one thick end and tapering to a thin edge, that is driven between two objects or parts of an object to secure or separate them.
1.) is a mechanism that converts rotational motion to linear motion, and a torque (rotational force) to a linear force.
2.) a short, slender, sharp-pointed metal pin with a raised helical thread running around it and a slotted head, used to join things together by being rotated so that it pierces wood or other material and is held tightly in place.
the SI unit of work or energy, equal to the work done by a force of one newton when its point of application moves one meter in the direction of action of the force, equivalent to one 3600th of a watt-hour.
the SI unit of power, equivalent to one joule per second, corresponding to the power in an electric circuit in which the potential difference is one volt and the current one ampere
operate or function, especially properly or effectively.
is the rate (energy amount per time period) at which work is done or energy converted
of the basic mechanical devices for applying a force, such as an inclined plane, wedge, or lever.
the ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine.
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