Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
28 Cards in this Set
- Front
- Back
|
Power (P)
|
How fast work is done. W/T=P
|
|
|
Work (W) is measured in what?
|
Joules.
|
|
|
Power is measured in what?
|
Watts.
|
|
|
Ek
|
Height?
|
|
|
Eg
|
Motion?
|
|
|
Eelas
|
Spring?
|
|
|
Ediss
|
Friction?
|
|
|
Kinetic Energy
|
Energy because of the object's motion.
|
|
|
Potential Energy
|
Stored Energy.
|
|
|
Elastic Potential Energy
|
Energy that can stretch and compress.
|
|
|
Gravitational Potential Energy
|
Energy stored due to the position on earth.
|
|
|
Mechanical Energy
|
Total Kinetic and Potential energy.
|
|
|
Law of Conservation of Energy
|
States that energy can't be destroyes or created.
|
|
|
First Class Lever
|
Fulcrum is between the input & output.
|
|
|
Second Class Lever
|
The output force is between the input & fulcrum.
|
|
|
Third Class Lever
|
Input force is between the output & fulcrum.
|
|
|
Machine
|
Device that makes work easier.
|
|
|
Input force
|
Force applied to the machine.
|
|
|
Output force
|
force applied by the machine
|
|
|
Efficiency
|
How much work put into the machine was useful.
|
|
|
Simple Machine
|
Work done in a single movement.
|
|
|
Lever
|
A bar free to turn or pivet.
|
|
|
Pulley
|
Grooved wheel with a chain around it.
|
|
|
Wheel & Axle
|
Simple machine consisting of a shaft with a n axle attached to a larger wheel in the center.
|
|
|
Inclined Plane
|
Sloping surface.
|
|
|
Screw
|
An inclined plane wrapped in a spiral.
|
|
|
Wedge
|
Inclined plane with 2 or more sloping sides.
|
|
|
Compoud machine
|
2 or more simple machines working together
|
