Prepared by
M.GOPALA
REDDY
TRAINING
ASSOCIATE (PHYSICS)
SUBJECT- PHYSICS CLASS – XI
|
UNIT
NO. |
UNIT
|
Concept based activities |
|
2 |
KINEMATICS |
(1) Collect
data of distance travelled and time taken by your vehicle by which you arrive
to school. Plot position-time graph and velocity-time graph (2) With
the help of train time table determine the average speed of 10 different
trains |
|
3. |
LAWS
OF MOTION |
(1) Prove
newton’s third law for a system of two connected spring balance suspended
vertically by different weights (2) Write
different examples from daily life showing that force always exists in pair? (3) Collect
examples of daily life indicating impulsive force and what measures are taken
to minimize its loses. (4) Apply
an impulsive force by a compressed spring on balls of different masses and
observe (a) Velocity
gained (b) Distance
covered by them. Write
conclusion on the basis of different forces acting on them. (5) Determine
the percentage loss in energy when a tennis ball is dropped on different
types(nature) of floor (6) Prepare
a model of water jet showing effect on angle of projection on range. (7) By
an experiment prove that a ball thrown horizontally and other one dropped
posses same time of flight. |
|
4. |
WORK,
POWER AND ENERGY |
(1) Plot
a graph showing variation of K.E., Potential energy and total energy with
position in a simple pendulum displaced side- ways to a certain distance
(with measured value of x) (2) Collect
the data for energy transformation in different process (3) With
the help of trolley and thread system proves work – energy theorem. |
|
5. |
SYSTEM
OF PARTICLES AND ROTATIONAL MOTION |
What
to perform? 1.
On what factors does moment of Inertia depend? a. Take a
rotating disc b.
Put wax on different locations. c.
Find the change in rotational
velocity. 2.
What is centre of gravity? a. Paste
the map of India on a card board. b. Make
the outline of map of the India on the card board. c. Cut
the card board in the shape of map of India. Locate the
centre of gravity. Name that place where it exits. |
|
6. |
GRAVITATION |
(1) Note
down the time period and radius of orbits of planets of solar system from
internet and verify the Kepler’s third law. |
|
7. |
PROPERTIES
OF MATTER Concept-
To study linear expansion of metal strip. Concept-
To study the concept of viscosity. |
What
to perform? To
study linear expansion of different metal strip. Explanation-
Take two or three metal strips of different material of equal length. Heat
the metal strip of equal and observe the expansion in the strip length. a. What
conclusion can drawn from the experiment? b. Which
metal has more expansion c. If
the area of cross-section of metal strip is increased and how does the
expansion may be effected? Explain. 2.
a. Take the metal strip made of iron, aluminum, and copper heat for same
time& find the rise in temperature for each sample. b) State which metal have the highest
specific heat. What
to perform? To
study the concept of viscosity. Explanation-
Take liquid of different type and allow them to flow in the surface, measure
the time of flow of different liquid to cover certain distance. Calculate the
velocity of flow of liquid. a. Does
the flow depend on density of liquid? b. What
is reason for different speed of flow in the surface? Explain. c. How
does it depend on the surface area? |
|
8. |
THERMODYNAMICS Concept-
Adiabatic process Concept-
Heat engine |
(1) During
the bursting of tube of cycle cool breeze blows. What interference can be
drawn by this change? State the nature of this change. (2) How
internal energy changes in this process? In
various types of heat engine, state when
play the role of following. (a) Source (b) Sink (c) Working
substance (d) Why
diesel engine is preferred in comparison to petrol engine? (e) Explain
the difference in the working of Engine and Refrigerator. |
|
9. |
KINETIC
THEORY OF GASES Concept- To study the diffusion of
different gases. |
What
to perform? To
study the diffusion of different gases. Explanation-
Take different sources of smoke like from candle, smoke from agarbati, smoke
from burning of coal and measure the how much time they take to diffuse. a. Which
of gas diffuse faster? What conclusion can be drawn about it? b. Which
principle it is based on? |
|
10. |
WAVES
AND OSCILLATIONS |
(1) Differentiate
between mechanical waves and non- mechanical waves and give one example of
each? (2) Differentiate
between longitudinal waves and transverse waves with examples? (3) Demonstrate
production of transverse and longitudinal
waves (4) Find
the change in speed of sound when temperature is raised by 100C? (5) Draw
the wave forms for standing waves and locate the points of Nodes and
Antinodes? (6) Demonstrate
production of stationary waves in stretched string at both ends, open organ and closed organ pipes Forced and coupled oscillation
:- (7) Take the five tennis ball ties each ball
with the thread of different length and suspend all these with the pipe.
When
one of the pendulum is displaced and released oscillation are produced in
all. a.
Explain the nature of oscillation in
other strings. b.
In which string resonance occurs. (8) Beats Discuss
why different musical instruments are tuned before play. |
