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Force and Motion
vocabulary
Question | Answer |
---|---|
attract | pull |
work | the act of using force |
weightlessness | little or no gravitational pull |
weight | how heavy somethign is, depending on gravitational pull |
velocity | rate of movement |
speed | rate of movement |
sound energy | energy that allows us to hear |
rest | pause during no force is moving an object |
repel | to push away |
balanced | in a state in which equal and opposite forces cancel each other |
chemical energy | energy made by a change in substance or a combination of substances |
direction | the way or course toward which something moves or faces |
distance | the amount of space between things |
electricity | energy created by moving charged particles |
electromagnetism | the combined force of electricity and magnetism |
energy | the power to do work, make a change, or move objects |
energy transfer | the movement of energy from one object to another of the change of energy from one form to another |
engine | a maching with moving parts that uses power to create motion; a motor |
force | the strength or energy that moves and object |
friction | a force taht slows down moving things |
generator | a machign that turns potential and kinetic energy into electricity |
gravity | the force that pulls things toward the center of Earth or any other object that has mass |
heat energy | a form of energy that is transferred from an object with a higher temperature to an object with a lower temperature |
inertia | the tendency of an object to resist change in the director or speed of its motion |
kinetic energy | the energy that a moving body has becaus of its motion |
law | a statement about results that always occur under certain circumstances |
light energy | a form of radiant energy that allows us to see |
lines of force | invisible lines of magnetic force that flow through and around a magnet |
magnetic field | an area aournd a magnet or a moving electrical charge with a magnetic force acts |
magnetism | a force that pushes and pulls certain metals |
mass | the amounht of matter measured on Earth by its weight |
momentum | the strength or force tha tkeeps something moving |
motion | the act of going from one place to another, movement |
potential energy | the energy a body had because of its position, electrical charge, or structure, or stored energy |
reaction | an equal, opposite response to a force being applied |