Physics Definitions Flashcards

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1
Q

Measurement

A

the determination of the size or magnitude of something

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2
Q

SI unit

A

the metric system that is used universally as a standard for measurements

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3
Q

Newtons first law

A

An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force

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4
Q

Newtons second law

A

the acceleration of an object is directly related to the net force and inversely related to its mass

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5
Q

Newtons third law

A

for every action (force) in nature there is an equal and opposite reaction

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6
Q

Distance

A

measures the length between objects or points without regard for direction

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7
Q

Direction

A

the location of something relative to something else

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8
Q

Speed

A

The rate of change of position of an object in any direction

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9
Q

Velocity

A

quantity that designates how fast and in what direction a point is moving

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10
Q

Acceleration

A

the rate of change of velocity over a designated distance

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11
Q

Freefall

A

any motion of a body where gravity is the only force acting upon it

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12
Q
A
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12
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12
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13
Q

Time

A

the measure of a change in a physical quantity or a magnitude used to quantify the duration of events

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