Flying
The force that pulls an aircraft up.
Lift
Something that makes work easier by changing the size or direction, or both, of a force.
Machine
Potential
This type of energy is stored in the chemical bonds that hold atoms together.
Chemical
A combination of two or more simple machines.
Compound Machine
A simple machine that consists of a rope or cable that turns around a wheel.
Pulley
The force that pushes an aircraft forward.
Thrust
The amount of work done or energy provided in a period of time.
Power
Objects with this can do work.
Kinetic Energy
Energy that is stored in a stretched spring or elastic object.
Elastic
A simple machine that has a slanted surface. A ramp is one.
Inclined Plane
A simple machine that consists of two back to back inclined planes.
Wedge
The frictional force of air molecules exerted on a flying craft.
Drag
A measure of the amount of useful work done by a machine.
Efficiency
The ability to do work.
Energy
Energy from the sun.
Radiant
A simple machine made of a rigid bar that pivots at a fixed point.
Lever
A simple machine that consists of a wheel attached to an axel that has a small diameter.
Wheel and Axel
This works in opposition to lift. If it is greater than lift, a plane will descend.
Weight
Mechanical Advantage of a ramp = length of incline / height of plane. This is the mechanical advantage of a 20m ramp with a height of 5m.
4
The total of all potential and kinetic energy within an object or body.
Mechanical Energy
Heat energy. The hotter the object, the more of this it has.
Thermal
The point at which a lever pivots.
The unit used to measure pressure in the metro system.
Pascals
Work = Force x Distance. This is how much work would be required to push a 30N object over 5m.
Energy stored in an object that has been lifted some height.
Gravitational Energy
Electrical
A simple machine that consists of an inclined plane wrapped around a cylinder.
Screw
A seesaw is an example of this class of lever.
1st class