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Physics 101 Lecture notecards
Notecards to help remember laws, equations, and facts from Physics 101 lecture
29
Physics
Undergraduate 1
10/01/2013

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Cards

Term
Trigonometry is a branch of mathematics that studies...
Definition
between sides and angles of triangles
Term
A right triangle is one with..
Definition
has one angle that is 90 degrees
Term
h = (in relationship to a right triangle)
Definition
hypotenuse
Term
Θ =
Definition
unknown angle in a right triangle
Term
ho =
Definition
Length of side opposite of angle θ
Term
ha =
Definition
Length of side adjacent to angle θ
Term
sin θ =
Definition
ho / h
Term
cos θ =
Definition
h/ h
Term
tan θ =
Definition
h/ h
Term
cot θ =
Definition
h/ ho
Term
What is the pythagoreum therom?
Definition
h2=h02+ha2
Term
Θ = sin-1 (...)
Definition
(h0/h)
Term
Θ = cos-1(...)
Definition
(ha/h)
Term
Θ = tan-1(...)
Definition
(h0/ha)
Term
Θ = cot-1(...)
Definition
(ha/h0)
Term
SI unit of length?
Definition
meters (m)
Term
SI unit of mass?
Definition
kilograms (kg)
Term
SI unit of time?
Definition
Seconds (s)
Term
A scalar quantity is...
Definition
one that can be described by a single number
Term
Give examples of scalar quantities.
Definition

Tempeture

Time

Mass

Distance

Speed

Term
A vector quantity deals with both...
Definition
Magnitude & direction
Term
Give examples of vector quantities.
Definition

displacement

Velocity

Force

Term
Distance is the _________ of displacement
Definition
magnitude
Term
Speed is the magnitude of _______
Definition
Velocity
Term
The length of the arrow is proportional to the...
Definition
magnitude of the vector
Term
What method do you use to add vectors.
Definition
The "Tail to Head" method
Term
The resultant or sum of two vectors is the..
Definition
vector that points from the tail of the first vector to the head of the last vector
Term
The negative of a vector is obtained by...
Definition
reversing the direction of the original vector
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