Resistance Force Effort Essay Example

MECHANICAL ADVANTAGE

CIRCUITS
SERIES CIRCUITS

Ratio of resistance and effort forces
Work = Force * Distance

IMA=

effort distance resistance distance

AMA = resistance force effort force

If MA > 1: Less effort force; greater effort distance If MA < 1: Greater effort force; less effort distance Moment = Force * Distance

Static Equilibrium: Effort Moment = Resistance Moment
Torque: A force that produces or tends to produce rotation or torsion.

SIMPLE MACHINES

Series circuits are connected end- Parallel circuits have both ends of to-end with a single path for current the components connected together, to flow. with multiple paths for the current to flow. Current through every series component is equal.
Voltage across every parallel component is equal.
Total resistance is sum of component resistances.
Total resistance is equal to the reciprocal of the sum of the
Sum of all voltage drops is equal component resistances' reciprocals. to total applied voltage (KVL).

MULTIMETER USAGE 1

PARALLEL CIRCUITS

When measuring amperage, use series connection. -->
CLASS 3
MA is always < 1

THERMODYNAMICS
The study of the effects of work, heat flow, and energy on a system.
Thermal energy: Kinetic energy in transit from one object to another due to temperature differences.
Temperature: the average kinetic energy of particles in an object.

WHEEL AND AXLE

PULLEY

Effort and resistance distances are the Fixed pulley: IMA 1 diameters of the wheel and axle.
Movable pulley: IMA 2

INCLINED PLANE

WEDGE

Effort distance = slope

Effort distance: Wedge length

Resistance = vertical

Effort resistance: Wedge width

SCREW

Absolute Zero: 0 K = -273OC
Thermal equilibrium: when touching objects within a system reach the same temperature. Work can't be done.
LAWS OF THERMODYNAMICS
Zeroth Law: Commutative property
First Law: Thermal energy can change form and location, but it cannot be created or