8th Science, 3rd Nine Weeks
Terms in this set (42)
The energy of position or shape.
The energy of motion.
The total energy of motion and position of an object.
The energy of a compound that changes as its atoms are rearranged to form a new compound.
The energy of electric charges.
The energy produced by the vibrations of electrically charged particles.
The heat energy of a substance is determined by how active its atoms and molecules are.
The energy caused by an object's vibrations.
The process of changing one form of energy into another.
The process by which multiple atomic particles join together to form a heavier nucleus.
Law of Conservation of Matter (mass)
The law that states that mass is neither created nor destroyed in ordinary chemical and physical changes.
The process where a large atomic nucleus splits into two smaller nuclei
Law of Conservation of Energy
The law that states that energy is neither created nor destroyed.
The rate at which an object moves.
The speed of an object in a particular direction.
The rate at which velocity changes.
Newton's Law of Motion
Three physical laws which provide relationships between the forces acting on an object and the motion of an object.
The action that results when a force causes an object to move in the direction of the force.
A push or pull.
A number that tells how many times a machine multiplies force.
The percentage of the input work done on a machine that the machine can return in output work.
The rate at which work is done.
The amount of matter that something is made of.
A measure of the gravitational force exerted on an object, usually by the Earth.
The six machines from which all other machines are constructed-(lever, an inclined plane, wedge, screw, wheel and axle, pulley).
A machine that is made of two or more simple machines.
The build up of electric charges on an object.
A constant flow of electrons.
A circuit in which all parts are connected in a single loop.
A circuit in which different loads are on separate branches.
The region around a magnet in which magnetic forces can act.
A continuous flow of electric charge
A device that changes electrical energy into kinetic energy.
A device that uses electromagnetic induction to convert kinetic energy into electrical energy.
The difference in energy per unit charge as a charge moves between two points in an electric circuit.
The opposition to the flow of electric charge.
A continuous flow of charge caused by the motion of electrons. The rate at which a charge passes a given point.
Electric current in which the charges always flow in the same direction.
A magnet that consists of a solenoid wrapped around an iron core.
A material in which charges can move easily.
Electric current in which the charges continually switch from flowing in one direction to flowing in the reverse direction.
A material in which charges cannot easily move.
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