History of Geometric Optics
Law of Geometric Propagation
RECTILINEAR PROPAGATION AND
REFLECTION AT PLANE SURFACES
Light - form of radiation energy
- enables people to see
- enables plants to manufacture food
SOURCES OF LIGHT
How to Make and Use a Pinhole Camera
Can Or Box Pinhole Camera
A pinhole camera is a small, light-tight can or box with a black interior and a tiny
hole in the center of one end. By using common household materials, you can
make a camera that will produce
1. Sonar (Sound Navigation and Ranging). Sonar is
used to detect underwater objects (corals / fishes) or
to determine the depth of the water by means of an
echo. Sonar equipment emits a high frequency
sound signal which is reflected by the object in the
FORM 2 WORK
STRUCTURE OF THE ATOM AND THE PERIODIC TABLE
Complete the table below.
The electron arrangement of ions X3 + and Y-2 are 2:8 and 2:8:8 respectively.
Write the el
1. When 34.8g of hydrated sodium carbonate Na2 Co3 XH2O were heated to a constant mass. 15.9g of
anhydrous sodium carbonate were obtained. Find the value of X in hydrated carbonate (Na= 23),
(O = 16), (C= 12), (H = 1.0) (3 mks)
FORM 3 WORK
Explain why the volume of a gas increases when its temperature is increased at a constant pressure.
Cotton wool pads were socked with concentrated solutions of gas p and gas Q the pads were then
placed of the opposite
NAME.ADM NO . STREAM
Distance s (m)
Distance s (m)
1. The graphs shown below represent the motion of a car. Determine the speed of the car during
the 3rd and 7th second in the first graph and 10th second in the second graph.
NAME_ADM NO_STREAM _
F3 PHYSICS RAT-EQUATIONS OF MOTION
1. Derive the three equations of linear motion (14 marks)
(a) 1st equation (5mks)
(b) 2nd equation (5mks)
(c) 3rd equation (4mks)
2. A body starts from rest and moves with uniform acceleration of 2m/
Alpha, Beta, and Gamma Decay
State what is meant by alpha, beta and gamma decay of
Identify the processes occurring in nuclear reactions
written in symbolic form.
The atom consists of two parts:
What is Electronics?
It is the branch of science and Technology which deals
with the motion of electrons in various systems or devices.
Electronics includes devices like junction diodes,
transistors,rectifiers, integrated circuits etc.by these
Buoyancy is the ability of an object to float.
It is related to the objects density.
Density is the amount of matter in a given
volume or space
Gasses are the least dense form of matter
Liquids are more dense than gasses, but
less dense than solids
Parallel & Series
Build the test circuit.
Build the series
circuit & fill out the
Build the Parallel
circuit & fill out the
Temperature and heat are
NOT THE SAME.
How hot or cold it is.
Measured in degrees Celsius.
The amount of thermal energy,
measured in joules or J.
A cup of hot tea has
heat energy in the
form of kinetic
Determine whether the following diagrams
illustrate acceleration or equilibrium.
Number your paper from 1 to 5 and
answer A if you think it is showing
acceleration or E if you think it is showing
Graphs and Problems
For each sentence
determine the direction of
a. A car is moving eastward along Lake Avenue and increasing
its speed from 25 mph to 45 mph.
As a general rule
if object is increasing speed
acceleration is in t
Coal , oil and gas
dead forest material
Gas and oil made
from dead sea
D.C. stands for direct current
which flows in one direction
only (- to +)
A.C.stands for alternating
current which changes
direction 50 times per second.
is seen as a straight
line on the oscilloscope.
A.C. is seen as a wavey
Fuse is used as a
Prevents too much
current flowing in
Plug wires colours
Gravity and Circular Motion
AQA syllabus A
When an object undergoes circular motion
it must experience a
This produces an acceleration
towards the centre of
IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology
RADIATION PROTECTION IN
L 21: Optimization of Protection in Pediatric
International Atomic Energy Agency
Make 4 small groups and discuss an answer
to the question you are given
Have a spokesperson present a summary of
Gravity and Inverse Square Relationships
Grade 11 Physics
1. Define Grav
CATHODE RAYS AND
CATHODE RAY TUBE
Production of Cathode Rays
Properties of Cathode Rays
1. They travel in a straight line
2. They cause fluorescence of certain substances eg zinc sulphide
3. They are charged
4. They posses kinetic ener
Albert Einstein 1879-1955
We believe in the possibility
of a theory which is able to
give a complete description
of reality, the laws of which
establish relations between
the things themselves and
not merely between their
probabilities . GOD DOES
lenses bring rays to a
focus.The more curved the lens ,
the quicker the rays are focussed.
Concave lenses make rays spread
out.The more curved the lens ,the
more the rays spread out.
Long sighted people can only
focus on far away
PHYSICS PAPER 2
A 240 v mains transformer has 800 turns in the primary and N turns in the secondary . It is used to supply energy
to a 12v/21w lamp.
Calculate the number of turns in the secondary
ELECTROMAGNETIC INDUCTION (EM I)
PAST KCSE QUESTIONS ON THE TOPIC
1. The diagram in figure 1 shows an arrangement that may be used to investigate how
electromagnetic force varies with current. Explain how the arrangement may be used for this
THE THREE COMMON TYPES OF
1. Linear (translational) motion
2. Circular (rotational) motion
3. Oscillatory (vibrational) motion
The Study of Motion is Divided into
The study of motion only without involving the
NAME_ADM NO_STREAM _
F3 PHYSICS RAT-GRAPHS OF MOTION
1. A body accelerates uniformly from 20 m/s to 40 m/s in 5 s.
(a) Sketch the velocity-time graph for this motion (3mks)
(b) From the graph, find the distance travelled during this time (3mks)
WORK, ENERGY, POWER AND MACHINES
a) State two factors that affect the efficiency of a pulley system.
b) Sketch a labeled diagram to show how arrangement of a single pulley may be used to provide a
velocity ratio of 2.
c) The figure below