Simple Machines

What is kinetic energy?

• energy that is stored

• energy that is in motion

the ratio of the magnitude of the resistance (R) and effort (E) forces; friction losses are taken into consideration.

• Actual Mechanical Advantage

• Ideal Mechanical Advantage

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3

 a tool used to complete work with less effort.

• work

• kinetic energy

• machine

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

any device that only requires a single input force to do work.

• simple machine

• complex machine

?= F * D

• Work

• Force

• Ohms

a rigid bar resting on a pivot (the fulcrum) used to make moving objects easier, consist of an effort force, load, and fulcrum

• wheel and axle

• lever

• pulley

Tags

NGSS.MS-ETS1-2

is a wheel and axle that support a cable or belt along the wheel’s circumference; pulleys are used to transfer force or speed and lift loads.

• inclined plane

• screw

• pulley

Tags

NGSS.MS-PS2-1

consists of a flat surface at an incline (angle) that is used to move heavy objects to a higher level.

• wheel and axle

• lever

• inclined plane

a triangular shaped tool; tapers to a thin edge that functions as a moving inclined place, effort is applied to the top of the height.

• screw

• pulley

• wedge

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

an inclined plane wrapped around a cylinder or a wheel and axle used to create rotary motion; used as a threaded fastener; can change a rotary motion into a linear motion

• inclined plane

• screw

• lever