Chapter 5: Laws of Motion
Question 5. 1. Give the magnitude and direction of the net force acting on(a) a drop of rain falling down with a constant speed,(b) a cork of mass 10 g floating on water,(c) a kite skilfully held…
Chapter 4: Motion in a Plane
Question 4. 1. State, for each of the following physical quantities, if it is a scalar or a vector: volume, mass, speed, acceleration, density, number of moles, velocity, angular frequency, displacement, angular velocity.Answer: Scalars: Volume, mass, speed, density, number…
Chapter 3: Motion in a Straight Line
Question 3. 1. In which of the following examples of motion, can the body be considered approximately a point object.(a) A railway carriage moving without jerks between two stations.(b) A monkey sitting on top of a man…
Chapter 2: Units and Measurements
Question 2. 1. Fill in the blanks(a) The volume of a cube of side 1 cm is equal to…………m3.(b) The surface area of a solid cylinder of radius 2.0 cm and height 10.0 cm is equal to…
Class 11 Physics Chapter 1 Physical World
Question 1. 1. Some of the most profound statements on the nature of science have come from Albert Einstein, one of the greatest scientists of all time. What do you think did Einstein mean when he said:…
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