Simple/Compound Machines Flashcards
(22 cards)
Are basic mechanical devices that alter the magnitude or direction of a force.
Simple Machines
Are combinations of two or more simple machines working together.
Compound Machines
Types of Simple Machines
Lever, wedge, pulley, wheel and axle, screw, inclined plane
The simplest mechanisms that use mechanical advantages to multiply force.
Simple Machines
A simple machine consisting of a beam or rigid rod pivoted at a fixed hinge, or fulcrum.
Lever
A rigid body capable of rotating on a point on itself.
Lever
A simple machine that consists of two inclined planes placed back-to-back.
Wedge
It’s used to split or separate objects by applying force to the thick end, often causing things to split or move apart.
Wedge
A simple machine that utilizes a wheel and a rope to change the direction and/or magnitude of a force, making it easier to lift or move objects.
Pulley
It consists of a wheel or disk with a groove around the circumference, through which a rope or cable is passed.
Pulley
A simple machine that functions as an inclined plane wrapped around a cylinder.
Screw
It converts rotational motion into linear motion, allowing it to be used for fastening objects or lifting materials.
Screw
A simple machine consisting of a wheel firmly attached to a smaller axle, so they rotate together.
Wheel and Axle
This combination allows for the transfer of force from one to another, making it easier to move or lift objects.
Wheel and Axle
Also known as a ramp, is a flat supporting surface tilted at an angle from the vertical direction with one end higher than the other.
Inclined plane
Used as an aid for raising or lowering a load.
Inclined plane
Inclined plane: Steep slope means more force needed but (blank).
Shorter distance covered
Inclined plane: Gentle slope means less force needed but (blank).
More distance covered.
A simple machine used to amplify force.
Lever
What are First-Class Levers?
The fulcrum is positioned between the effort and the load. (e.g., scissors, seesaw, crowbar)
What are Second-Class Levers?
The load is positioned between the fulcrum and the effort. (e.g., wheelbarrow, bottle opener)
What are Third-Class Levers?
The effort is between the fulcrum and the load. (e.g., fishing rod, tweezers, shovel)
