Simple Machines
The fixed point where a lever rotates.
What is a fulcrum?
The external force applied to objects.
What is effort force?
This is where Mrs. Miltner got her engineering degree.
What is Iowa State University?
A renewable form of energy derived from plants.
What is biomass?
The unit of electrical potential difference, whose symbol is V.
What is a Volt?
Doorknobs are an example of this.
What is wheel and axle?
The ratio of useful energy output to total energy output.
What is efficiency?
Mrs. Miltner's engineering degree
What is Bachelor of Science Mechanical Engineering?
Energy sources not derived from fossil fuels, including renewable and inexhaustible.
What is alternative energy?
A system of substations, power lines, and transformers that delivers electricity from power sources to consumers.
What is the power grid?
The type of lever where the effort force is at one end and the fulcrum at the other.
What is a second class lever?
It is made up of more than one simple machine.
What is a compound machine?
A legal document which is a log or journal that serves as an archival repository for solution ideas that are generated throughout the design process.
What is an engineering notebook?
A machine for producing power in which a rotor is made to move by a fast-moving flow of water, steam, gas or air.
What is a turbine?
This law can be written as:
Voltage = Current x Resistance
Current = Voltage / Resistance
Resistance = Voltage / Current
What is Ohm's Law?
This is the purpose of a fixed pulley with a mechanical advantage of 1.
What is to change the direction of force?
A situation in which the total forces acting on an object at rest add up to zero.
What is static equilibrium?
These are the 6 steps of the design process in order.
What are
1. Define the problem
2. Generate concepts
3. Develop a solution
4. Construct and test a prototype
5. Evaluate the solution
6. Present the solution
?
Coal and oil are this type of energy source.
What is non-renewable?
This is the type of circuit where there is only one path for current to flow.
What is a series circuit?
Also known as the six simple machines.
What are the lever, wheel & axle, inclined plane, wedge, and screw?
A gear train can change these two things between the input and output shafts.
What are rotational speed and torque?
These are the four main branches of engineering careers.
What are Mechanical, Chemical, Civil and Electrical Engineering?
Uranium is classified as this.
What is a non-renewable energy source?
Kirchoff's Voltage Law states this.
What law states that the sum of all voltage drops in a series circuit equals the total applied voltage?