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Force and Motion
Question | Answer |
---|---|
Control | what is not changed in an experiment |
Controlled experiment | an experiment in which all the variables are kept the same except for the one being tested (fair test) |
Force | a push or pull that can change the position or motion of an object / material |
Friction | a force that acts in an opposite direction to movement; slows things down |
Gravity | a force that pulls objects toward each other |
Magnetism | a force that pushes or pulls a magnetic material across a distance |
Motion | a change in the position of an object |
Position | the place where something is located; where something has been put |
Pull | the act of applying force to move something toward or with you |
Push | the act of applying force in order to move something away |
Reliability | the extent to which an experiment, test, or investigation provides the same results on repeated trials |
Testable hypothesis | an idea that can be tested by experiment or observation |
Valid conclusion | information describing what was learned from an investigation based on observations and collected data |
Variable | what is changed in an experiment |