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Simple Machines
Simple Machines
Properties of Matter
Properties of Matter
Properties of Matter/State
100
(physics) the rate of doing work power = work divided by time =W/t
What is Power
100
The amount by which a machine multiplies the effort force. MA=output force/input force
What is mechanical advantage
100
A simple machine consisting of two inclined planes aligned back to back MA=length of wedge/greatest thickness
What is Wedge
100
A measure of the amount of matter in an object
What is Mass
100
A characteristic of a pure substance that describes its ability to change into different substances
What is chemical property
200
Applying a force to an object causing it to move in the direction of the force. work equals force times distance W=F x d
What is work
200
a machine made of more than one simple machine, multiple moving parts lowers mechanical efficiency
What is compound machine
200
A measure of the force of gravity on an object
What is weight
200
Mass per unit volume
What is density
300
A simple machine that consists of a bar that pivots at a fixed point called a fulcrum.
What is lever
300
Two different sized circular objects that are attached together and turn as one. ex doorknob MA =radius of wheel/radius of axle
What is wheel and axle
300
Anything that takes up space
What is Volume
300
A change in a substance that does not involve a change in the identity of the substance
What is physical change
400
a comparison of a machine's work output with the work input ME= work output/work input
What is mechanical efficiency
400
A grooved wheel with a rope, chain, or cable running along the groove.
What is pulley
400
Anything that has mass and takes up space
What is Matter
400
A characteristic of a pure substance that can be observed without changing it into another substance
What is physical property
500
A flat surface set at an angle used to help raise or lower objects. ex ramp MA= length of plane/height to which load is lifted
What is inclined plane
500
A simple machine that is an inclined plane wrapped around a central cylinder to form a spiral
What is screw
500
(physics) the tendency of a body to maintain is state of rest or uniform motion unless acted upon by an external force
What is inertia
500
(chemistry) any process determined by the atomic and molecular composition and structure of the substances involved
What is chemical change