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# Forces in Life

### Unit 3/ Force and Motion

TermDefinition
Force A push or pull that causes a change in motion of an object.
Net force The total of all the forces acting on an object.
Unbalanced forces Type of force that causes objects to start moving, stop moving or change directions.
Balanced forces Type of force that does not cause motion, Net force equal to zero.
Inertia The tendency of an object to resist changes in motion.
Newton A measurement used to describe units of force.
Friction The force that one surface exerts on another when the two rub against each other.
Gravity The force of attraction that pulls objects toward each other.
Geotropism Growth that happens in living things in response to gravity, such as the downward growth of plant roots.
Heliotropism The movement of a plant toward or away from light.
turgor pressure Pressure exerted by water inside plant cells on the inside of the cell wall.
Work When force is applied to an object and it moves as a result of the force.
Created by: davisjer

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