Chapter 4: Forces and Newton’s Laws of Motion Glossary
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Erikoismerkit | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Å | Ä | Ö | Kaikki
D |
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dynamicsthe study of how forces affect the motion of objects and systems | |
E |
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external force | |
F |
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force | |
free-body diagrama diagram showing all external forces acting on a body | |
freefall | |
frictionan external force that acts opposite to the direction of motion or, for when there is no relative motion, in the direction needed to prevent slipping | |
I |
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inertiathe tendency of an object at rest to remain at rest, or for a moving object to remain in motion in a straight line and at a constant speed | |
L |
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law of inertiaNewton’s first law of motion: a body at rest remains at rest or, if in motion, remains in motion at a constant speed in a straight line, unless acted on by a net external force; also known as the law of inertia | |
M |
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massthe quantity of matter in a substance; the SI unit of mass is the kilogram | |
N |
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net external forcethe sum of all external forces acting on an object or system | |