Work/Power
The transfer of energy that occurs when a force is applied over a distance.
Work
A simple machine, made of a bar that pivots from a fixed point.
Lever
A grooved wheel with a rope or cable wrapped around it.
Pulley
Electrons have a ____ charge.
negative
What is energy due to motion?
Kinetic Energy
What is the formula for work?
Work = Force times distance
A shaft attached to a wheel of a large diameter so that both can rotate together.
Wheel and Axl
A ramp in a building is an example of which machine?
Inclined Plane
Protons have a ____ charge.
Postive
What is stored energy?
What is a sign that work is being done?
Movement
A flat, sloped surface.
Inclined Plane
What kind of machine does work using one movement?
Simple Machine
The ____ and ___ are in the nucleus.
Protons and Neutrons
The energy that sound carries.
Sound Energy
The rate at which work is done.
power
Two inclined planes stuck together.
Wedge
The point at which a lever pivots.
Fulcrum
The vertical rows of the periodic table are called ____.
Families/Groups
Burning too many fossil fuels is causing the temperature on Earth to ______.
Rise or Increase
The ratio of the output work to the input work.
efficiency
An inclined plane wrapped around a cylinder.
Screw
What kind of machine uses 2 or more simple machines working together?
Compound Machine
The periodic table lists the Elements in order of____.
Lifting a heavy object is an example of _________ potential energy.
gravitational