a push or a pull - force, unit of measurement for force - Newtons (N), tool used to measure force - Spring Scale, a pulling force that pulls things down towards the center of the Earth - gravity, a pulling force that acts against motion to slow down or stop things from moving - friction, a pulling force when placed near magnetic objects - magnetic force, a pushing force created by particles in the air that act against gravity - air resistance, a statement of an idea that can be tested experimentally - hypothesis, the part of an experiment you select to change or test - Independent Variable (or manipulated variable), the thing you are measuring that responds to the way you set up the experiement - Dependent Variable (responding variable), things or conditions (part of test) that must stay the same in each trial - Constant, the results obtained by investigation and the opinion reached based on the test - Conclusion,

FORCE

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