Simple and Compound Machine Crossword Puzzle

QUESTIONS LIST:

• lever: a rigid bar that rotates around a fixed point known as the fulcrum
• first class: type of lever for seesaw
• second class: type lever for wheelbarrows
• third class: type of lever for fishing rods
• pulley: a wheel with a groove around its edge, through which a rope or cable can run
• fixed: these pulleys are attached to a fixed point and only change the direction of the force
• compound: it is a combination of the simple and moveable pulley
• movable: these pulleys move with the load, reducing the amount of force needed to lift the load
• inclined plane: a flat surface tilted at an angle, used to help move objects from a lower to a higher elevation with less force than lifting directly.
• screw: it consists of a long, spiral ridge, known as the thread, wrapped around a cylindrical shaft.
• head: top portion of the screw
• thread: spiral-shaped ridge that runs down the length of the shaft of a screw
• wedge: a triangular-shaped tool that is used to split, cut, or lift objects
• axle: a cylindrical rod that passes through the center of the wheel
• simple machine: are devices that make our lives easier by allowing us to perform tasks with less effort.
• fulcrum: a point of which the lever rests or around which the lever rotates
• effort: it is the force which is applied on lever or on load to move it
• load: it is the object to be moved or the object on which force is applied
• mechanical advantage: length of the incline(l) divided height of the incline (h)
• block and tackle: created by combining multiple pulleys, both fixed and movable, in a specific arrangement.