Vocab Flashcards
(22 cards)
The energy a moving object has because of its motion
Kinetic Energy
Stored energy due to position
Potential Energy
Energy stored by something that can stretch or compress
Elastic potential energy
Energy stored in chemical bonds
Chemical potential energy
Energy stored by objects due to their position above earths surface
Gravitational potential energy
The total amount of potential and kinetic energy in a system
Mechanical Energy
It states that energy cannot be created or destroyed
Law of conservation of energy
The transfer of energy that occurs when a force makes an object moves
Work
The amount of work done in one second
Power
A device that makes doing work easier
Machine
The force that is applied to the machine
Input force
The force applied by the machine
Output force
The ratio of the output force to the input force
Mechanical advantage
A measure of how much work put into a machine
Efficiency
A machine that does work with only one movement of the machine
Simple Machine
A bar that is free to pivot or turn around a fixed point
Lever
A grooved wheel with a rope,chain, or cable running along the groove
Pulley
A simple machine consisting of a wheel and axle
Wheel and axle
A sloping surface that reduces the amount of force required to work
Inclined plane
An inclined plane wrapped in a spiral around a cylindrical post
Screw
An inclined plane with one or two sloping sides
Wedge
