Question 4: The pressure in a gas cylinder containing hydrogen will leak more quickly than if it is containing oxygen. Why? Answer Leakage of H…
Question 3: A thermometer is placed in direct sun light. Will it read the temperature of air or of the sun or something else? Answer…
Question 2: When a block with a hole in it is heated, why does not material around the hole expand into the hole and make…
Question 1: Why is the earth not in thermal equilibrium with the sun? Answer Thermal EquilibriumWhen two bodies are in thermal equilibrium, they are at…
Conceptual Questions of Thermodynamics Question No Statement of the question Question 1Why is the earth not in thermal equilibrium with the sun?See SolutionQuestion 2When a…
Comprehensive Question 2: Determine the mass of Earth by applying law of gravitation. Answer Suppose a body of mass mo is placed on the surface…
Comprehensive Question 1: State and explain the law of universal gravitation. Also show that the law obeys Newton’s third law of motion. Answer Statement of…
Comprehensive Questions on Gravitation for grade 09 This page includes solved comprehensive questions and assignments included in the course of Physics for grade 09. Question…
Assignment 2: Calculate the number of seconds in a week. Express them in the power of 10 notation. Answer We calculate the number of seconds…
Assignment 1: The mass of earth is 5,980,000,000,000,000,000,000,000 kg. Write this number in standard form (scientific notation). Solution The standard form is M × 10n,…