Radians
RADIAN MEASURE
A radian is measure of angle. It is larger than a degree. Radian measure is widely used in Mathematics and
Physics. All trigonometry in Calculus is done in radians. One radian is the angle subtended by an arc of
length 1 in a circle

FIND the length of AE.
This above diagram shows a pyramid. The four dashes through the four sides of the base show that all
four sides are equal in length, and the right angle shown in one corner of the base tells us for certain that
the base is a square

PARENT FUNCTIONS:
1.
Complete the table of values for the function
yx
2
. Then produce an accurate graph
on the grid provided.
x
-2
y
-1
0
1
2
2.
on the
Complete the table of values for the function
y x3
. Then produce an accurate graph
grid provided. (Us

NELSON TEXTBOOK-PAGES 281, 286-287
Chapter 4 Self Quiz
Identify each of the following statements as true, false, or
incomplete. If the statement is false or incomplete,
rewrite
it as a true statement.
1. The shape of molecules of the rocket fuel
hydrazine

b.
[nterinolecular Quiz
Name:
/L, ^
'
Multiple Choice
Identify the choice that besTcompletes the statement or answers the question.
_occurs when two atoms with similar electronegativities bond to each other.
I. London Dispersion Force
II. hydrogen bonding

Practice Test
Draw the Lewis structure for SO2. How many bonded pairs of electrons and how many lone pairs
of electrons are around the sulfur atom
For each molecule,
- draw the Lewis structure
- use the VSEPR theory to predict the shape of the compound

Short Answer
1. ANS:
Dipole-dipole forces occur between molecules that have molecular dipoles: for example, between ICl
molecules. Ion-dipoles occur between the ions of an ionic solid and a molecule with a molecular dipole: for
example, between Na+ and H2

Intermolecular Quiz
Name: _
Multiple Choice
Identify the choice that best completes the statement or answers the question.
1. A _occurs when two atoms with similar electronegativities bond to each other.
I. London Dispersion Force
II. hydrogen bonding
III

OPTIMIZATION PROBLEMS
EX1: You have a piece of wire that is 100cm long. It is bent to form a rectangle. Determine the
dimensions of rectangle with the largest area.
100
100 cm is the perimeter of the wire.
Write an equation based on given data.
2l 3w P
10