9 terms

Grade 3 Science Fusion Unit 10 Simple Machines

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Terms in this set (...)

Work
involves using force to move an object across a distance
Lever
a bar that pivots or turns on a fixed point
Fulcrum
fixed pint on a lever
Wheel-and-axle
uses a circular motion to increase force; connected so they turn together
Pulley
wheel with a cord, rope or chain around it
Wedge
two inclined edges placed back to back with a sharpe edge
Inclined Plane
a plane that is slanted so that one end is higher than the other; easier to lift a load
Screw
an inclined pane wrapped around a cylinder
Compound Machine
machine made up of 2 or more machines