Lesson 1
The definition of Work
What is a force applied through a distance
The definition of Energy
The definition of Law of Conservation of Energy
What is W = Fd
_____ is a device that changes the force or increases the motion from work
What is a machine
_______ is anything around which you can imagine a boundary
What is a System
____ is the sum of the kinetic energy and potential energy of the objects in a system
What is Mechanical Energy
The SI unit for energy
What is J or Joules
The efficiency equation
What is e = (output work/input work) * 100
What is GPE = m*g*h
On a roller coaster, the Kinetic energy is at its greatest when:
The Mechanical Advantage formula
What is MA = Fout / Fin
What is increase speed, change direction of force, and/or increase force.
3 different forms of energy (not kinetic or GPE)
What is Chemical potential energy, electrical energy, radiant energy
On a swing set, the two forces that slow you down are.
What is friction and air resistance
The six formulas from Module 4: by name not actual equations.
What is Work, Efficiency, Mechanical Advantage, Kinetic Energy, GPE, and Power
What is Lever, Wheel and axle, pulley, inclined plane, wedge, and screw.
What is Chemical potential energy: Food & gas
The two ways to increase power.
What is to increase the amount of energy converted in each second and reduce the time needed to convert the energy
A boulder with a mass of 2,500 kg on a ledge 200 m above the ground falls. Estimate the speed of the boulder just before it hits the ground
What is 55 - 70 m/s