Ch2: Foundations of Physics Flashcards
What does prefix M mean?
Mega, 10^6
What does prefix G mean?
Giga, 10^9
What does prefix T mean?
Tera, 10^12
What does prefix k mean?
Kilo, 10^3
Put these prefixes in order smallest to largest: T,k,P,M,G
k, M, G, T, P
Kilo, Mega, Giga, Tera, Peta
What does prefix d mean?
Deci, 10^-1
What does prefix c mean?
Centi, 10^-2
What does prefix m mean?
Milli, 10^-3
What does prefix μ mean?
Micro, 10^-6
What does prefix n mean?
Nano, 10^-9
What does prefix p mean?
Pico, 10^-12
What does prefix f mean?
Femto, 10^-15
What does prefix P mean?
Peta, 10^15
Put these prefixes in order, smallest to largest: f, p, d, μ, m, c, n
f, p, n, μ, m, c, d
Femto, Pico, Nano, Micro, Milli, Centi, Deci
Is potential difference a scalar or a vector?
Scalar
Is energy a scalar or a vector?
Scalar
Is power a scalar or a vector?
Scalar
Is momentum a scalar or a vector?
Vector
What is the unit for momentum?
kgms^-1
Is Amps an SI unit?
Yes
What is a coulomb in SI units?
As
What are the 7 SI base quantities?
Mass, Length, Time, Temperature, Amount of substance, Current, Luminous Intensity.
What is a Joule in SI base units?
kgm^2s^-2
Which of these (Pressure, depth, density, acceleration, mass, volume) are SI base units?
Mass and Depth (length)
How is percentage uncertainty calculated?
Absolute uncertainty/ actual value x 100
What do you do to uncertainty when values are added or subtracted?
Add the ABSOLUTE uncertainties
What do you do to uncertainties when values are multiplied or divided?
Add the percentage uncertainty for each value
What do you do to the uncertainty of a value when it is raised to the power of n?
Multiply percentage uncertainty by n
