Science > Physics > Scalars and Vectors > Scalars and Vectors In this article, we shall study scalars and vectors, their characteristics. Scalar Quantities or Scalars: The physical quantities which have magnitude only and which can be specified by a number and unit only are called scalar quantities or scalars. For e.g. when we are […]
Science > Physics > Electrostatics > The Concept of Electric Field When a charge is kept in a medium it sets around it, what is called an electric field. It can be represented by drawing what is called lines of force. If another charge is brought into this region it experiences a force. Due to the field, the […]
Science > Physics > Friction > Applications of Friction In this article, we shall understand why does kinetic friction is smaller than the static friction and why it is easier to roll than solid. We shall also study some everyday examples in which friction is used. To produce relative motion between two bodies in contact […]
Science > Physics > Friction > Concept of Friction Friction or force of friction is a force which comes into existence when two bodies in contact have relative motion or tending to have relative with respect to each other and oppose the motion. Characteristics of Friction: Force of friction is always opposites to the force […]
Science > Physics > Projectile Motion > Numerical Problems on Projectile Motion – 01 Example – 01: A body is projected with a velocity of 49 m/s at an angle of 30o with the horizontal. Find a) the maximum height reached by the body, b) the time of ascent, c) the time of flight, d) […]
Science > Physics > Projectile Motion > Analytical Treatment of Projectile Motion When a body is thrown making an acute angle with the horizontal, the body is said to perform the projectile motion. The path of the body performing projectile motion is called a trajectory. Example: A ball thrown by a fielder to the wicketkeeper, […]
There are a variety of criminal defense strategies that a lawyer may utilize when defending a client in a criminal case. Courts will determine legal insanity. In this article, we shall study one of the strategies called The M’Naghten Rules. Insanity is a mental defect or disease that makes it impossible for a person to know what […]
Science > Physics > Motion in a Straight Line > Newton’s Equations of Motion In this article, we shall study to solve problems based on Newton’s equations of motion. First Equation of Motion: Let u = initial velocity of a body, v = final velocity of the body t = time in which the change in velocity takes […]
Science > Physics > Motion in a Straight Line > Numerical Problems on Displacement, Average Speed, Velocity In this article, we shall study to solve problems to calculate displacement, Average Speed, and average Velocity. Example – 01: A train travels a distance of 100 m due east in 10 seconds. What is its speed and […]
Science > Physics > Motion in a Straight Line > Terminology of Motion Motion is an important part of our life. Our daily activities involve motion of different kinds. In this topic, we shall study the terminology of motion. Mechanics: The branch of physics which deals with the effects of forces on object is called […]