click below
click below
Normal Size Small Size show me how
Motion
Unit F1 Study Guide
Term | Definition |
---|---|
relative motion | motion that is based on a frame of reference |
motion | any change of position |
acceleration | change in the speed or direction of an object's motion |
position | describes a certain place |
gravity | force that pulls all objects towards each other |
force | any push or pull |
newton | metric unit of force |
frame of reference | things around you used to describe motion |
speed | measure of an objects change of position during a unit of time |
weight | measure of the force of gravity on an object |
friction | force that keeps two objects that are touching from easily sliding past each other |
proton | particle in an atom that has a positive charge +1. They are found in the nucleus of the atom. |
neutron | particle in an atom that has no charge, so it is neutral. They are found in the nucleus of the atom. |
electron | particle that has a single negative charte -1. They move around the nucleus of an atom. |
atom | tiny particles that make up all matter |
What are the three particles that make up an atom? | protons, neutrons, electrons |
To find a swimmer's speed, you need to know the distance he or she swam and the | time it took |
to measure force, you can use a _____. | spring scale |