WorksheetsUnderstanding Simple Machines
Total questions: 12
Worksheet time: 14mins
Pulley definition
A type of lever used to lift heavy objects
A wheel with a rope to lift or move loads
A device for measuring weight
A tool for cutting materials
Lever definition
bar that moves around a fulcrum
a type of pulley system
a rigid body that rotates around a point
a simple machine that increases speed
Wedge as a simple machine
Device with a slanted edge that splits or cuts materials
A tool used for lifting heavy objects
A type of lever that rotates around a fulcrum
A mechanism that converts rotational motion into linear motion
Compound machine definition
made of two or more simple machines
a single simple machine
a complex electronic device
a type of engine
Screw as a simple machine
A flat surface used to hold objects together
A plane wrapped around a cylinder to lift or hold
A lever that pivots around a fulcrum
A wheel and axle used for movement
Wheel and axle identification
circular object rotating around a rod
flat surface with a pivot point
rigid bar that can rotate around a fixed point
flexible band used to connect two wheels
Work definition
Forces applied over a distance to move an object ; @@W = F \times d@@
Energy transferred by heat
The rate of doing work
The force applied to an object
Fulcrum in a lever
The point where the lever is held
The fixed point around which a lever pivots
The load that the lever moves
The distance from the fulcrum to the load
Inclined plane definition
A flat surface that is horizontal
A surface set at an angle to help raise or lower objects
A curved surface used for rolling objects
A vertical surface used for climbing
Reasoning: Why use a compound machine?
To reduce the number of machines needed
To increase the complexity of the machine
Advantages of multiple simple machines for efficiency
To make the machine more expensive
Six types of simple machines
wheel and axle, pulley, inclined plane, wedge, screw
lever, gear, block and tackle, spring
cam, crank, ratchet, chain
piston, turbine, flywheel, axle
Example of a pulley in daily life
A flagpole uses a pulley to raise and lower the flag
A bicycle uses a pulley to change gears
A window blind uses a pulley to open and close
A crane uses a pulley to lift heavy objects
