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Electricity
Magnets
Simple Machines
Gravity
Waves
100
The flow of electrons
What is electricity ?
100
Any material that attracts iron or metals containing iron .
What is a magnet ?
100
A simple nachine that is an inclined plane wrapped in a spiral.
What is screw.
100
A force of attraction between objects that is due to there masses and the distance between them.
What is gravity ?
100
On a transversal wave what is the top of the wave called ?
What is crest
200
A device that uses electrical energy to do work
What is load ?
200
a magnet that consists of a coil of wire carrying an electric an electric current, wrapped around an iron core .
What is electromagnet ?
200
A simple machine consisting of a bar that pivots at a fixed pont, called a fulcrum.
What is lever.
200
The law that states that all objects in the universe attract each other through gravitational force.
What is law of univ. gravitation
200
On a transversal wave what is the top part of the wave called ?
What is trough
300
The force between charged objects
What is electric force ?
300
A force of repulsion or attraction between the poles of magnets .
What is magnetic force ?
300
A simple machine consisting of two circular objects of different sizes.
What is wedge.
300
The SI unit of force
What is newton
300
The number of waves produced in a specific amount of time
What is frequency ?
400
A method of charging an object that occurs when electrons are transferred from one object to another by direct contact
What is conduction ?
400
The region around a magnet in which magnetic forces can act .
What is magnetic field ?
400
A simple machine that is a straight, slanted surface.
What is inclined plane.
400
A force that opposes motion between two surfaces that are touching.
What is friction.
400
The distance between to crest or troughs on a transversal wave
What is wavelength
500
A method of charging an object that occurs when charges in an uncharged object are rearragned without direct contact with a charged object .
What is induction ?
500
The process by which an electric current is produced by a changing magnetic field .
What is electromagnetic induction ?
500
A simple machine consisting of a groved wheel that holds a rope or a cable.
What is pulley
500
The acceleration of an object depends on the mass of an object and the amount of force applied.
What is newtons second law
500
The maximum distance a wave vibrates from it's resting position
What is amplitude