Unit 1 - Force
"Prime Movers"

Subunit 1:
Force in a Mechanical System
"Prime Movers are Force and Torque"
Inertia and force will cause bulk mass to move in straight line (linear motion).
Force = F = ma. Thus force cause accelerated motion. Force units are Newton (N) or Pound (lb). Metric unit is newton (N), and English unit is pound (lb).

A torque will cause mass to rotate clock-wise or counter-clock-wise.
Torque = FL = Force time Lever Arm. Torque units N-m or lb-ft

Mechanical Systems	Activity
Velocity Vector: Boat in Water	Lab <Worksheet>
Net Force	Simulations
Equilibrium of Three Forces	Lab
Force Vectors	Simulation
Vector Math	Lab <Worksheet>
Hooke's Law	Lab
Net Force	Simulation
Static - Beam	Lab
Torque Lab	Lab
What is Torque?	Reference
Unbalanced Forces on Aircraft	Simulation

 

Subunit 2:
Pressure in Fluid Systems:
"Prime Mover is Fluid Pressure Difference"
Pressure = F/A

Fluid Systems	Activity
Pressure	Reference
Pascal Principle (Hydraulic Press Principle)	Reference/Video
Static Fluid Pressure (P = rgh)	Reference
Manometer - Hydrostatic Pressure in Liquids	Lab
How a Tire Pressure Gauge Works	Reference
Buoyant Force In Liquids	Lab
Density Lab	Lab
Cartesian Diver	Simulation
Movie on Buoyancy	Movie
Submarines - How they work	Article
Atmosphere Simulator Notes on : Air Pressure Air Temperature Air Density	Lab
How do Toilets Work?	Reference
Diving Physics: Effects of water pressure on your body	Tutoria

Subunit 3:
Voltage in Electrical Systems:
"Prime Mover is Voltage Difference"
When electrical charge moves continously in one direction through a conductor, it is called   DC .
When electrical charge moves back and forth through a conductor, it is called  AC .
When frequency and hertz are used to describe electrical current, they are describing alternating voltage.
Voltage is considered a force-like quantity because it:
a. moves electrons through a circuit
c. acts as a prime mover of electrical charge

Subunit 4:
Temperature in Thermal Systems
Heat always moves from regions of higher temperature to regions of lower temperature.
When you are measuring the average energy of motion of the molecules which make up a substance, you are measuring its  temperature. When you measure the total kinetic energy of the molecules in a substance you have found its total heat energy.
Place the degree symbol (°) in the proper position (before or after the scale symbol) for the following temperatures:

a. Room temperature of 24 °F (measurement of temperature)
b. A temperature change of 10 F° (temperature calculation)
c. Boiling water at 212 °F (measurement of temperature)
d. A difference of 10 C° (temperature calculation)