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Science Chapter 2 Unit C Notes and Definitions
Science Chapter 2 Unit C Notes and Definitions
16
Science
5th Grade
01/07/2013

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Term
wheel and axle
Definition
__________ a simple machine made of two wheels of different sizes that pivot around the same point. Example- doorknob
Term
mechanical advantage
Definition
__________ is the number of times that a machine multiplies the effort force applied to it.
Term
inclined plane
Definition
__________ is a simple machine with a sloping surface. Example- ramp
Term
fulcrum
Definition
__________ is the fixed point around which a lever pivots.
Term
machine
Definition
__________ is a device that makes work by reducing the amount of force needed to do a job.
Term
pulley
Definition
__________ is a simple machine made up of a wheel around which a rope or chain is passed.
Term
lever
Definition
__________ is a simple machine made up of a bar that pivots around a fixed point.
Term
compound machine
Definition
__________ is a simple machine that is made up of two or more simple machines.
Term
levers
Definition
Chopsticks are examples of _________.
Term
work
Definition
If you exert a force over a distance, __________ is done.
Term
effort
Definition
The force you exert on a simple machine is called the __________ force.
Term
force
Definition
A push or a pull best describes __________.
Term
simple machine
Definition
Something that changes the direction of a force or multiplies a force is probably a _________.
Term
energy
Definition
The ability to cause a change in position, direction, or temperature is __________.
Term
radiation
Definition
__________ does not need a medium through which to travel.
Term
joules
Definition
The amount of energy stored in an object is likely to be measured in _________.
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