Learners were made to revise the concepts taught so far, in the theory slots and were made to practice the past paper questions during the practical slots for all three paper types- paper 2, 4 and 6.
After general waves properties, learners were introduced to mechanical longitudinal waves- sound and its properties. This unit was followed by exploring and understanding the properties of electromagnetic radiation and the electromagnetic spectrum of which these radiation form a part of.
Learners were introduced to the properties of waves and the wave equation. This was followed by solving few numericals related to the same.
They also appeared for a unit test for the last unit in this cycle.
Tuning in activity for the new unit was done in class wherein the demonstration was done in class using a slinky and a structure made from sticks and a cello tape, this can imagined to replicate a bridge. With this, a disturbance was created from one end and learners were made to observe what changes as the disturbance moves. The phenomenon was interesting to observe and the reflection was taken after the demonstration about their observation. Later the term ‘wave’ was introduced to them. This was followed by introducing them to the types of waves.
Learners presented their presentations on describing how electricity or other useful forms of energy may be obtained from- chemical energy stored in fuel, water, including the energy stored in waves, in tides, and in water behind hydroelectric dams, geothermal resources, nuclear fission, heat and light from the Sun (solar cells and panels) and wind. They discussed the advantages and disadvantages of each method in terms of reliability, scale and environmental impact.
Later, the teacher explained the points to the class which were not included in the presentations.
In COS practical slot they performed practical to investigate the period of a pendulum.
Photographs of the learners while performing the practical.
Kindly note the following points about the field trip to Science City, Ahmedabad.Ã‚Â
Visit to Science city, Ahmedabad will enhance studentÃ¢â‚¬â„¢s physics Ã‚Â knowledge. This visit is intended to explore the applications of various concepts of physics like energy, work & power. It is explicitly planned for students to learn and have fun. They will be watching a 3D movie Ã¢â‚¬Å“Walking on the moonÃ¢â‚¬Â.
Alignment of CoS syllabus with different attractions of Science city is as follow.
|No.||Unit name||Learning outcomes to be achieved||Science city attractions|
|1.||Energy||Give and identify examples of energy in different forms, including kinetic, gravitational, chemical, strain, nuclear, thermal (heat), electrical, light and sound.||Energy Park|
|2.||Give and identify examples of the conversion of energy from one form to another, and of its transfer from one place to another.|
|3.||Describe how electricity or other useful
forms of energy may be obtained from:
Ã¢â‚¬Â¢Chemical energy stored in fuel
Ã¢â‚¬Â¢ Water, including the energy stored in waves, in tides, and in water behind
Ã¢â‚¬Â¢Heat and light from the Sun (solar cells and panels)
|3.||Magnetism||Distinguish between the design and use of permanent magnets and electromagnets.||Hall of Science|
|4.||Motion||Describe and use the concept of weight as the effect of a gravitational field on a mass.|
|5.||Light||Describe the dispersion of light by a glass prism.|
|6.||Sound||Describe how the reflection of sound may produce an echo|
|Demonstrate understanding that a medium is needed to transmit sound waves|
|7.||Electricity||A repository of knowledge on electricity for audiences across various age groups.||CLP ELECTRODROME|
|8.||Light||Describe the role of electromagnetic waves in:
Ã¢â‚¬Â¢Radio and television communications (radio waves)
Ã¢â‚¬Â¢Satellite television and telephones (microwaves)
Ã¢â‚¬Â¢Electrical appliances, remote controllers for televisions and intruder alarms (infrared)
Ã¢â‚¬Â¢Medicine and security (X-rays).
|Hall of Space|
Date of field trip: 25th Januray 2017
Assemble at: 4:45 amÃ‚Â at Vanita Vishram groundÃ‚Â
Departure: 5 am
Return at:Ã‚Â 11:00 pm (approximately) at Vanita Vishram groundÃ‚Â
Learners can carry a maximum of Rs.500 cash, they are supposed to carry their breakfast (Friday food policy to be kept in mind), water bottle, physics notebook, a pen and school ID card.
Learners are supposed to be in complete uniform (this includes pair of school pants and school jacket).
Parents will be informed in case of delay.
Learners were made to solve numericals based on ‘Work done’. This was followed by understanding the concept of ‘Power’ and solve numericals based on the same.
Learners were made to solve numericals based on kinetic and potential energy.
Learners were made to understand what energy is possessed by a body when it is at rest and Ã‚Â in motion and they were made to derive the formula for both gravitational potential energy and kinetic energy. Later, they were introduced to energy transformation with the help of an activity wherein they were divided into groups and each group was given one device and they had to identify the energy transformation associated with the same. They were then explained about Sankey diagram and this was followed by learners making the Sankey diagram for energy transformation taking place in a device given to them.
Learners were introduced to the unit work, energy and power with an activity where two balls-one basketball and one tennis ball were thrown on the floor, first individually and later one over the other. With this they were explained what is energy. This was followed by a discussion on why did the tennis ball bounce very high when it was thrown over the basketball and the conclusion gave them an understanding that energy was transferred from the basketball to the tennis ball and hence the ball bounced very high. This was followed by discussion on when is work said to be done.