Teaching Aid (Audio-Visual) [Total 39 Videos]
CONCEPT OF CENTRE OF GRAVITY # SCIENTIFIC PRINCIPLES BEHIND SPORTS
The Centre of Gravity (COG) of the human body is a hypothetical point around which the force of gravity appears to act. It is point at which the combined mass of the body appears to be concentrated. The direction of the force of gravity through the body is downward, towards the centre of the earth and through the centre of gravity. This line of gravity is important to understand and visualize when determining a person's ability to successfully maintain balance. When the line of gravity is within the base of support, an object or person is said to be stable. When the line of gravity falls outside the base of support, the object or person is said to be unstable. A larger base of support and a lower centre of gravity increases stability and vice-versa.
CONCEPT OF TORQUE # SCIENTIFIC PRINCIPLES BEHIND SPORTS
Dear Students, Torque is a measure of the force that can cause an object to rotate about an axis. The direction of the torque vector depends on the direction of the force on the axis. In Cycling, the force you apply when pedalling creates a torque that is perpendicular to the frame of the cycle. This torque prevents the cyclist from losing his balance and falling.
CONCEPT OF NEWTON’S 3rd LAW OF MOTION # SCIENTIFIC PRINCIPLES BEHIND SPORTS
Dear Children, “For every action, there is an equal and opposite reaction.” For every force that is exerted by one body on another, there is an equal and opposite force exerted by the second body on the first. Newton’s 3rd law of motion literally controls everything around us, from rocket science to the motion of animals, to humans everyday life, to the point that it literally controls how sportsmen and sportswomen perform their athletic activities. Since Newton’s third law is an “action-reaction” law, it is a key law in different fields of Sports. It also works hand-in-hand with the conservation law of momentum.
CONCEPT OF PHYSIOLOGY BEHIND SPORTS # CARDIO FITNESS WORKOUT
Dear Students, Endurance is a term widely used in sports and can mean many different things to different people. Endurance requires the circulatory and respiratory systems to supply energy to the working muscles in order to support sustained physical activity. Heart rate of a normal person is 72 beats per minute that means heart beats 72 times per minute to supply oxygen rich blood to different parts of the body especially working group of muscles. However, for an athlete/runner, heart rate is as low as 38-45 beats/minute. A teaching tool that demonstrates effect of workout on heart rate and lung capacity was developed.
CONCEPT OF FORCES INVOLVED IN SWIMMING # SCIENTIFIC PRINCIPLES BEHIND SPORTS
Dear Students, An ingenious tool using banana stem was developed to explain the concept of forces involved in swimming and the basic movement of breaststroke practice to aspiring students of swimming. This aid facilitates the teaching with illustration of a suitably shaped body that cuts through water.
CONCEPT OF FRICTION # SCIENTIFIC PRINCIPLES BEHIND SPORTS
Dear Students, Frictional forces act against the movement of one surface over another. Therefore, we can say Friction is an inter-molecular force/adhesive force that opposes motion. The principle of friction is always applied to various sports and games. Friction is the force that prevents the player from slipping and sliding. A teaching aid is developed to demonstrate the effect of friction.
