Photosynthesis is an important activity that occurs in all green plants, whether flowering or non- flowering. It is the only process by which solar energy is converted into chemical energy. Photosynthesis may be defined as the synthesis of carbohydrates by the green organs (containing chlorophyll) of a plant in presence of sunlight from carbon dioxide […]
Science > Physics > Elasticity > Longitudinal Stress and Strain In this article, we shall study the concept of stress, strain, and modulus of elasticity. Main focus will be on longitudinal stress, longitudinal strain, and Young’s modulus of elasticity. Concept of Stress: The net internal elastic force (restoring force) acting per unit area of the […]
Science > Physics > Elasticity > Classification of Materials In this article, we shall study the deformation in the body due to the application of deforming force and classification of materials on this behaviour. Effects of Applied Force on a Body: If the forces acting on a body are unbalanced i.e. the resultant force acting […]
Science > Physics > Force > Simple Numerical Problems on Force In this article, we shall study to solve numerical problems to calculate the magnitude of force, momentum, and change in momentum. Example – 01: The speed of a tortoise and hare are 1 m/s and 3 m/s respectively. The mass of the hare is 5 […]
Science > Physics > Force > Applications of Newton’s Laws Newton’s laws of motion have everyday applications. The change in momentum of a body in a small time is a cause of large force. Most of the applications are related to the concept of change in momentum. Cricket fielder lowers his hand while catching a […]
Science > Physics > Force > Newton’s Third Law of Motion In this article, we shall study Newton’s third law of motion and the concept of action-reaction pair of forces. Statement: To every action, there is always equal, opposite and simultaneous reaction. Explanation: Let us consider a block of metal kept on the table. The […]
Science > Physics > Force > Newton’s Second Law of Motion In this article, we should study the concept of momentum and Newton’s Second Law of Motion. To apply Newton’s second law of motion, the body should be acted upon by an unbalanced force. Thus to apply this law we should consider a net force […]
Science > Physics > Force > Newton’s First Law of Motion Newton’s laws of motion are three physical laws that, together, laid the foundation for classical mechanics. In this article, we shall discuss Newton’s first law of motion and the concept of inertia of a body. Statement of Newton’s First Law of Motion: Every material body […]
Science > Physics > Force > Concept of Balanced and Unbalanced Forces In this article, we shall discuss the concept of balanced forces and unbalanced forces. Kinematics: The branch of physics (mechanics) which deals with the motion of the bodies without considering the forces causing it is called kinematics. Dynamics: The branch of physics (mechanics) which deals […]
Science > Physics > Force > Types of Forces Depending upon the interaction between the bodies and level of contact forces are classified a) Contact forces b) Non-contact forces. Muscular force is a contact force. Electrostatic force is non contact force. Contact Forces: A force which can be applied only when it is in contact […]