force and motion
a push or pull.
what is force?
heat, chemical, electromagnetic, nuclear, mechanical
what are the five main forms of energy?
atom with a positive charge
what is a proton?
materials that conducts or transfers thermal energy poorly
what is a thermal insulator?
can do work in one motion/ movement.
what is a simple machine?
the action or process or moving or being moved.
what is motion?
__ energy can be produced by friction.
what is heat energy?
the attractive and repulsive forces between two poles
what are magnetic forces?
materials that conducts or transfers thermal energy well
what is a thermal conductor?
inclined plane, wedge, screw, wheel and axle, lever, pulley.
what are the six types of simple machines?
D= speed x time
what is the equation for distance?
conduction, convection, radiation
what are the ways heat can transfer?
occurs when ions create attractive and repulsive forces
what are electric forces?
transfer of thermal energy when particles of a fluid move from one place to another
what is convection?
a device that increases the distance by which the effort force is applied.
what is an inclined plane?
F= m x a
what is the equation for force?
energy that is transferred by direct contact
what is conduction?
rate of flow of charged particles
what is electric current?
transfer of thermal energy by waves moving through space
what is radiation?
decreasing effort force, increasing the distance over which the force is applied, changing the direction of the applied force.
what are the three ways to make work easier?
the rate at which velocity changes with time, in terms of both speed and direction.
what is acceleration?
energy that is transferred by mass motion of molecules in a liquid or gas
what is convection?
the power of a magnet is know as ___
what is magnetic forces?
-273 *C or -459 *F
a machine that consists of two or more simple machines that work together to perform a function.
what is a compound machine?