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Physics > Measures > Flashcards

Measures Flashcards

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1
Q

What does deci mean?

A

10^ -1

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2
Q

What does centi mean?

A

10^-2

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3
Q

What does milli mean?

A

10^ - 3

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4
Q

What does Micro mean?

A

10^ -6

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5
Q

What does nano mean?

A

10^ -9

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6
Q

What does pico mean?

A

10^ -12

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7
Q

What does deca mean?

A

10^ 1

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8
Q

What does hecto mean?

A

10^ 2

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9
Q

What does kilo mean?

A

10^ 3

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10
Q

What does mega mean?

A

10^ 6

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11
Q

What does giga mean?

A

10^9

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12
Q

What does terra mean?

A

10^ 12

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13
Q

Unit of Newton?

A

Kgms^-2

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14
Q

What are the units of joule?

A

N*m

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15
Q

What are the units of watt?

A

J/s

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16
Q

What are the units of pascal?

A

N/m^2

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17
Q

What are the units of volt

A

J /c or w/a

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18
Q

What are the units of ampere

A

C/s

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19
Q

What are the units of ohm

A

V/a

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20
Q

What are the units of Weber

A

V* S

21
Q

What are the units of tesla

A

Wb/m^ 2

22
Q

What are the units of hertz

A

Cycle/s

23
Q

1l=? Dm^3

A

1 dm^3

24
Q

What is a vector?

A

A quantity that has both direction & magnitude

25
Q

Example of vector quantities

A

Velocity, displacement, torque, input, field (magnetic, eletric..) & acceleration

26
Q

What are scalars?

A

A quantity that has only magnitude

27
Q

Example of scalar quantities

A

Mass, area, volume, time, distance, energy, work, current, voltage, resistance, charge & so on

28
Q

Is pressure a vector or scalar?

A

Scalar

29
Q

Is pressure a vector or scalar?

A

Scalar

30
Q

Is pressure a vector or scalar?

A

Scalar

31
Q

Is entropy a vector or scalar?

A

Scalar

32
Q

Is capacity a vector or scalar?

A

Scalar

33
Q

What does multiplying a scalar & a vector yield?

A

A vector

34
Q

Is magnetic field a vector or scalar?

A

Vector

35
Q

Is drag a vector or scalar?

A

Vector

36
Q

Is gravitational field a vector or scalar?

A

Vector

37
Q

Is momentum a vector or scalar?

A

Vector

38
Q

Is impulse a vector or scalar?

A

Vector

39
Q

Is force/weight a vector or scalar?

A

Vector

40
Q

Formula for pressure

A

P=F/A
Force in newtons
Area in m^2

41
Q

Unit for pressure

A

Pascal

42
Q

Other units of pressure

A

Atmosphere, atm
Milo meters of mercury, mmHg
Torr
Bar

43
Q

How much is 1 atm in kPa?

A

101.325

44
Q

1atm to mmHg

A

760

45
Q

1atm to torr

A

760

46
Q

1 bar to kPa

A

100

47
Q

Pressure of fluids formula

A

P=roh (density) * height

48
Q

Do vectors have to start from the same place to be equal?

A

No

49
Q

What is the average velocity if displacement is 0?

A

Also 0

Physics (8 decks)

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