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10 Cards in this Set

  • Front
  • Back
If a part of a machine moves around in a circle, it has a __ ___ ___ __ __ __ action .
rotary
If something moves repeatedly between one position and another, we say that it is __ __ __ __ __ __ __ __ __ __ __.
oscillating
An adjective which means consisting of or to do with lines __ __ __ __ __ __
linear
All mechanisms involve some kind of __ __ __ __ __ __ .
motion
A device which opens and closes to control the flow of liquids or gases,( or a similar structure in the heart and the veins, which controls the flow of blood) is called a __ __ __ __ __ .
valve
An engine which produces energy by burning fuel within itself is called an internal __ __ __ __ __ __ __ __ __ __ engine.
combustion
11. A device consisting of a weight on a stick or thread which moves from one side to the other, especially one which forms a part of some types of clock is called a __ __ __ __ __ __ __ __ .
pendulum
The force which makes it difficult for one object to slide along the surface of another or to move through a liquid or gas is called __ __ __ __ __ __ __ __ .
friction
When you __ __ ___ __ __ __ __ __ ___ a machine , you use a substance such as oil to make the machine operate more easily, or to prevent something sticking or rubbing.
lubricate
A __ __ __ is a wheel with shaped bumps on it. __ __ __ __ are often connected to rods, levers, or springs.
cam