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Chapter 10 STACK
chapter ten vocab
Term | Definition |
---|---|
Force | A push or pull |
Newton | SI unit for the magnitude of a force |
Net force | Combination of all forces acting on an object. |
Unbalanced Force | When an object has net force. |
Balanced Forces | Equal forces acting in opposite directions. |
Friction | A force that two surfaces exert on each other when they rub against each other. |
Static Friction | A type of friction that acts on non moving objects. |
Sliding Friction | Slide over each other |
Rolling Friction | Rolls across surface. |
Gravity | Force that pulls object towards e/o |
Mass | The amount of matter in an object. |
Weight | Amount of gravity on an object. |
Free Fall | Force of gravity alone causes an obj to accel. |
Air Resistance | fluid friction of air acts on an obj falling. |
Projectile | An obj that is thrown will fall just as fast as obj dropped will hit ground at same time. |
Compression | squeeze |
Tension | stretch/pull |
Inertia | An object's tendency to resist change in motion. |
Newton's First Law | Objects in motion will stay in motion and objects at rest will stay at rest unless acted upon by an outside force. |
Newton's 2nd Law | Accel. depends on net force acting on object and object's mass. |
Newton's 3rd Law | For every action, there is an equal or opposite reaction. |
Momentum | Mass * Velocity (quantity of motion) |