Topic 1 - Levers & Inclined Planes
Topic 2 - Wheels, Gears & Pulleys
Topic 3 - Energy, Efficiency & Friction
Topic 4/5 - Pressure, Hydraulics & Pneumatics
Topic 6/7 - Machines Through History
100
This type of lever has the load in the middle.
What is a Class 2 lever?
100
This gear is found at the beginning of a gear train.
What is the driver?
100
This is known as the energy of motion.
What is kinetic energy?
100
Pressure is measured in these units.
What are pascals?
100
This is a simple machine that does one task as part of a larger, complex machine.
What is a subsystem?
200
This is the distance from the fulcrum to the effort in a lever.
What is the effort arm?
200
Gears that are connected by a chain and sprocket turn like this.
What is in the same direction.
200
This type of energy is often referred to as the energy of position.
What is potential energy?
200
The formula for pressure.
What is: P = F/A ?
200
Multiple subsystems working together make up this.
What is a system or complex machine?
300
A class 3 lever gives this type of advantage.
What is a speed advantage?
300
These two different types of pulleys are based on the position of the wheel.
What is a fixed and moveable pulley?
300
The formula: E = WORK output/WORK input x 100 is used to calculate this.
What is efficiency?
300
A water jet is an example of this type of system.
What is hydraulics?
300
The internal combustion motor engine was preceded by this.
What is the steam engine?
400
This is the formula used to calculate work.
What is: W = F x d ?
400
This type of simple machine can provide either a force advantage or a speed advantage and is NOT a lever.
What is a wheel and axle?
400
Machines can never be 100% efficient because of this.
What is friction?
400
Pneumatics is the study of this.
What is pressure in gases?
400
A complex machine designed to do a simple task (and is sometimes slightly ridiculous).
What is a Rube Goldberg machine?
500
A machine making a task 5 times easier is an example of this.
What is mechanical advantage?
500
This formula is used to calculate the speed ratio of gears.
What is: SR = driver/follower ?
500
The position where there is MOST kinetic energy
.
What is position 3?
500
Pressure transmitted equally in a closed system is known as this.
What is Pascal's Law?
500
This is the reason people in the past moved in to the city from rural areas.
What is industrialization?