Electricity
What do you call the movement of electrons from one place to another?
Electric Current
There is no matter for the sound to travel through.
What common substance actually expands when frozen?
Water
In science, what is required for work to be done?
Movement / Something has to move.
Name the unit scientists use to measure temperature.
Celsius
What do you call a material that allows electricity to flow easily?
Conductor
What form of matter does sound travel fastest through?
Solid
Heat always moves from the _____ object to the _____ object.
Warmer to cooler
What type of simple machine is a ramp?
Inclined Plane
Name the unit used to measure electrical resistance.
Ohm (Ω)
Which type of circuit allows electrons to flow freely?
Closed circuit
What do you call the small bundles of energy that make up light?
Photons
What is the movement of heat through direct contact called?
Conduction
What type of simple machine is used to lift a flag on a flagpole?
Pulley
Name the unit used to measure the frequency of a sound.
Hertz (Hz)
In a series circuit, what happens to the other bulbs if one bulb burns out?
They all go out.
Light travels in the form of what type of waves?
Electromagnetic waves
What is the heat transfer by moving liquids or gases called?
Convection
What type of simple machine is a crowbar?
Lever
Newton
What is the equation (or triangle) for Ohm's Law?
I = V/R
Sound travels in the form of whaty type of waves?
Mechanical waves
What type of heat transfer travels through empty space?
Radiation
Name all six types of simple machines.
Lever, Pulley, Wheel and axle, Inclined plane, Wedge, Screw
Name the unit used to measure the amount of work done.
Joule