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Unit prefixes > Physics > Flashcards

Physics Flashcards

1
Q

What are the two frames of reference

A

Cartesian and cardinal

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2
Q

What is motion

A

A change in position relative to something else

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3
Q

What is frame of reference

A

A system of coordinates that has a fixed origin

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4
Q

What is displacement

A

Distance in a given direction

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5
Q

What is a scalar

A

A quantity that has magnitude but no direction

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6
Q

What is a vector

A

A quantity that has both magnitude and direction

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7
Q

What are some examples of scalars quantities

A

Speed,mass,volume, distance area

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8
Q

What are some examples of vector quantities

A

Velocity, displacement, acceleration, momentum, pressure

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9
Q

What is delta

A

A greek letter that stands as change in

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10
Q

What is resultant vector

A

The sun of two or more vectors

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11
Q

What is velocity

A

Speed in a particular direction

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12
Q

What is average velocity

A

Displacement of the object divided by the time interval

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13
Q

What equals The slope of the line (rise divided by run)

A

Average velocity

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14
Q

Whats the formula of average velocity

A

Displacement final—displacement initial
———————————————
Time final—time initial

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15
Q

What is instantaneous velocity

A

Momentary velocity at one point in time

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16
Q

A curved line graph shows what

A

Instantaneous velocity

17
Q

A straight line graph shows what

A

Average velocity

18
Q

Is this average or instantaneous/ how fast must you bike to get there in half an hour

A

Average

19
Q

Is this average or instantaneous/what is the fastest she can run?

A

Instantaneous

20
Q

Is this average or instantaneous/how fast did he run the first 5 miles if the marathon

A

Average

21
Q

Is this average or instantaneous/what is the minimum speed of takeoff

A

Instantaneous

22
Q

What is one-dimensional motion?

A

Motion along a straight line

23
Q

What is acceleration

A

Change in velocity over time

Unit prefixes (2 decks)

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