Physics mind map

Plus de détails

our machine creation

par Ivan Tan

mapa conceptual

par JUAN FELIPE HURTADO MOLINA

maquinaria simple

par deiby giovanny paez rodriguez

Great Eight Inventions

par cameorn klepper

: a device that makes work easier by magnifying or changing the direction of a force

Simple Machine

W = weight

F = Force

wa = weight arm

fa = force arm

h = height

ℓ = length

Wedge

examples: axes, knives, and chisels

used to separate, cut, or split objects apart

two inclined planes placed back to back

Inclined planes

formula of inclined plane : (F x ℓ = W x h)

examples: ramps and slides

makes it easier to move things to a higher location

is a flat surface that is raised at one end

Screw

examples :of screw: screws, nuts, bolts, light bulbs

used to hold objects together

an inclined plane wrapped around a cone/cylinder to form a spiral

Wheel and axle

examples: bicycles, cars, doorknobs, pencil sharpener

makes us easier to move things from one place to another

a simple machine consisting of a wheel that turns around a post called an axel

Lever

Formula of lever : (W x wa = F x fa) and (W:F = fa:wa)

examples of lever: seesaw, tweezers, crowbars

there are 1st class lever, 2nd class lever, and 3rd class lever

a rigid bar that rotates around a fixed point called a fulcrum

Subtopic

Pulley

examples of pulley: flagpole, blinds, elevators

its mechanical advantage is got by dividing its weight with force

there are three types of pulley : fixed pulley ( MA = 1 ), moving pulley ( MA = 2), and compound pulley (must be counted first

a simple machine made of a grooved wheel and rope or cable wrapped around it