Movement is seen in both vertebrates and invertebrates.There are a variety of movements which happen in the human body, eg., the movement of eyelids, heart muscles, jaw and teeth. In addition, movement could also refer to movement of arms and legs, as well as head and neck. Interestingly, movement of some organs occur because of the collaboration of muscles and bones. In these cases, it happens along a point at which two or more bones form a joint.Human movements are described in three dimensions based on a series of planes and axis.
CBSE Class 12 Physical Education Chapter 2 Sports & Nutrition MCQ Important Questions 2025
But have you ever actually decoded, how this happens? In the human body, it takes place when the living organism moves a body part or a combination of parts to bring without a change in the position. We use the term locomotion to describe the movement which results in the change of position of the whole organism. It is important to understand the difference between the two – movement and locomotion – in relation to living things.Movement is the displacement of a body or its parts from their original position to a new position. Locomotion is when the movement of a part of the body leads to change in the position and location of the organism. Both of these are brought about by the joint efforts of the skeletal navigate to this site and muscular systems.
There are a number of ways to reduce friction in sports, depending on the specific needs of the athlete and the sport they are participating in. One common technique is to use lubricants or coatings on surfaces to reduce the amount of friction between the athlete’s equipment and the playing surface. For example, athletes may apply wax to the bottom of their skis or snowboards to reduce friction on the snow, or use grip tape on their shoes to improve traction on a court or field. Another benefit of reduced friction is increased safety. High levels of friction can cause athletes to slip, trip, or fall, leading to potential injuries.
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Reducing friction in sports can have a number of benefits for athletes. One of the main advantages is improved performance. When there is less resistance between the athlete and the surface, they can move more quickly and easily. This can lead to faster times, higher jumps, and more precise movements. Additionally, reduced friction can also help athletes conserve energy, allowing them to perform at their peak for longer periods of time. Friction can be defined as the resistance to motion of two moving objects or surfaces that touch.
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- For example, abduction of the shoulder raises the arms out to the sides of the body.
- We hope you liked the above notes for topic Biomechanics And Sports which has been designed as per the latest syllabus for Class 12 Physical Education released by CBSE.
- Which one of the following is NOT a result of regular exercise?
- This is especially important in sports that involve high speeds or quick changes in direction, where even a small amount of friction can make a significant difference.
- Recently one more friction type has been recognised which is known as Limiting Friction.Limiting friction is the force that comes into play when one body is just on the verge of moving over the surface of another body.
- Everyone knows that heavier objects require more force to move the same distance as lighter objects.However, the Second Law gives us an exact relationship between force, mass, and acceleration.
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We have also provided a lot of Worksheets for Class 12 Physical Education which you can use to further make yourself stronger in Physical Education. Extension ActivityDraw images of five sports where you find usage of Friction most prominent. Which one of the following is NOT a result of regular exercise?
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CBSE Class 12 Physical Education Chapter 7 Physiology & Injuries in Sports MCQ Important Questions 2025
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Biomechanics applies the laws of mechanics and physics to human performance. Recently one more friction type has been recognised which is known as Limiting Friction.Limiting friction is the force that comes into play when one body is just on the verge of moving over the surface of another body. What do you understand by the concept of sports biomechanics? There is both Static Friction and Kinetic Friction. Static friction is the friction before an object starts to slide, while Kinetic friction is the friction when the object is actually moving or sliding. The formula for both is the same, except they have different coefficient of friction values.
Reducing friction in sports can have a significant impact on athlete performance and safety. By minimizing resistance between the athlete and the playing surface, athletes can move more efficiently, conserve energy, and decrease the risk of injury. Whether through the use of lubricants, equipment modifications, or technique adjustments, athletes can benefit from reduced friction in a variety of sports.