11th Physics solutions
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– Chapter 1:
– Introduction to quantities and their units.
– Angular size and its relation to distance.
– Mass density of the Sun and its implications.
– Chapter 2:
– Motion under gravity with velocity, acceleration, and displacement calculations.
– Analysis of graphs representing particle motion.
– Understanding the relationship between displacement and path length.
– Chapter 4:
– Application of Newton's First Law to different scenarios.
– Calculation of forces in various situations.
– Solving problems using equations of motion and forces.
– Chapter 5:
– Work done by different forces and changes in kinetic energy.
– Understanding potential energy and its relation to work done.
– Conservation of linear momentum and energy in different scenarios.
– Chapter 6:
– Identifying the center of mass for various objects.
– Calculating impulse and momentum conservation in collisions.
These are the key topics and summaries for each chapter based on the content of the attached file "11th Physics solutions.pdf"【4:0†source】【4:1†source】【4:2†source】【4:3†source】【4:4†source】.
What are some examples of scalar quantities mentioned in the chapter?
Volume, mass, speed, density, number of moles, angular frequency
What is the relationship between average speed and average velocity magnitude according to the chapter?
Average speed equals average velocity magnitude only for a straight path.
Calculate the velocity of a stone at t = 11 seconds if the horizontal component of velocity is 20 m/s and the vertical component is 10 m/s.
Velocity of stone at t = 11s is approximately 22.4 m/s at an angle of 26.6° with the horizontal
Explain the force situation in a train moving on a frictionless horizontal track as described in the chapter.
The only force in each case is the force of gravity, equal to 0.5 N vertically downward. The pebble has a constant horizontal component of velocity throughout its motion.
What are the forces involved in the given scenarios in the chapter according to Newton's First Law?
For scenarios (a) to (d), there is no net force according to the First Law. For scenario (e), there is no force as it is far away from material agencies producing electromagnetic and gravitational forces.
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