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IB Physics > Topic 1 > Flashcards

Topic 1 Flashcards

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1
Q

What is the base unit for length?

A

meter

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2
Q

What is the symbol for meter?

A

m

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3
Q

What is the base quantity of a meter?

A

length

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4
Q

What is the base unit for mass?

A

kilogram

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5
Q

What is the symbol for a kilogram?

A

kg

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6
Q

What is the base quantity for a kilogram?

A

mass

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7
Q

What is the base unit for time?

A

second

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8
Q

What is the symbol for a second?

A

s

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9
Q

What is the base quantity for a second?

A

time

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10
Q

What is the base unit for a current?

A

ampere

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11
Q

What is the symbol for an ampere?

A

A

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12
Q

What is the base quantity for an ampere?

A

current

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13
Q

What is the base unit for temperature?

A

Kelvin

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14
Q

What is the symbol for Kelvin?

A

K

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15
Q

What is the base quantity for Kelvin?

A

temperature

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16
Q

What is the base unit of an amount of substance?

A

mole

17
Q

What is the symbol for mole?

A

mol

18
Q

What is the base quantity for a mole?

A

Amount of substance

19
Q

What are derived units?

A

units that are made up out of base units

20
Q

What are units that are made up out of base units?

A

derived units

21
Q

What is precision?

A

how well repeated measurements of a value agree with one another (exact)

22
Q

What is how well repeated measurements of a value agree with one another (exact)?

A

precision

23
Q

What is accuracy?

A

how well a measurement agrees with the true value (correct)

24
Q

What is how well a measurement agrees with the true value (correct)?

A

accuracy

25
Q

When using an analog scale, what is the uncertainty?

A

plus or minus half the smallest scale division

26
Q

On what scale is it when the uncertainty is plus or minus half the smallest scale division?

A

analog scale

27
Q

When using a digital scale, what is the uncertainty?

A

plus or minus the smallest unit shown

28
Q

On what scale is it when the uncertainty is plus or minus the smallest unit shown?

A

digital scale

29
Q

When taking repeated measurement how do you find the uncertainty?

A

range/2

30
Q

When multiplying or dividing quantities, how do you find the resultant uncertainty?

A

add the percentage/fractional uncertainties of the quantities that we are multiplying

31
Q

When adding or subtracting quantities, how do you find the resultant uncertainty?

A

add the absolute uncertainties of the quantities we are measuring

∆a = ∆b + ∆c

a b c

32
Q

Is velocity a vector?

A

Yes

33
Q

Is acceleration a vector?

A

Yes

34
Q

What is a scalar quantity?

A

magnitude only can be described by a number with units

35
Q

What is a vector quantity?

A

magnitude and direction must be described by a number (its magnitude) and its direction

IB Physics (27 decks)

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