ow meme 5 / 5 with Answe! is with CBSE Handbook Quester aay, the most common C85 of eye, : a fr 3. inthe el (b) 2nd Class leve, , lotion AND TH = . 8.1 NEWTON’S LAWS OF M MD wise (2) 2nd Gast APPLICATION IN SPORTS | easter a Ne 1. Tick (v) the correct option , (al 3. Ponnenine eventos second Law of MaHON tHE | angers: ( nan avstins ty greater the movement of an object, the ny. answer 8 {o) Longer distance will it travel 1 oatine 8 6, point 82.4 {o) Stronger will it resist the external forces ee eee oon {c) Speedier it will cover the given distance paw 3% (G) More stable will it remain in its motion. we et PaKe ; ae 2. Newton's First Law of Motion is known as the a Answer te following Ave aes ror f of inert ; te help o , he {c) LawotReaction (6) Lawof inertia Mh Ah the table exer (c) Lawot Effect {a} taw of Momentum wireation of 1st 88! 3, Newton's Second Law of Motion is also known as rnpage 163 uareiee (a) Law of Reaction (b) Law of Inertia rt What do you mean BY lever? Explain with the helo ) Resultant Force (d) Lawof Effect ed serene 4, Acceleration due to an external force acting 0m 2 | 4. Ref, page 163 ° eng object is technically defined as the change in| “YS Four iBRIUM age 288) ion. that object’s (2) Location (b) Direction (c) Velocity (d) Movement Answers:1.(4) 2. (b) 3. (c) 4 () Answer the following questions briefly. List Newton's Laws of Motion. " 1 Ans. Ref. Page 161, Point 8.1 2. Elucidate Newton's Law of Inertia. Ans, Ref. Page 161, Point 8.1 Ill. Answer the following questions in 150-200 words. With the help of suitable examples, discuss the 1 application of Newton's Laws of Motion in sports. Ans. Ref. Page 161 2. How can Newton's second law and third law of motion be applied in sports? ‘Ans. Ref. Page 162 8.2 TYPES OF LEVERS AND THEIR APPLICATION IN SPORTS (Page 281) I. Tick (V) the correct option. 1. The three basic components of a lever are (a) Mass, Weight & Velocity (b) Force, Fulcrum & Load (c) Fulcrum, Resistance & Effort (d) Both (b) and (c). What type of lever is depicted in the picture? (a) 1st Class lever (b) 2nd Class lever {c) 3rd Class lever (d) None of the above 0 Physical Education—Xil Qi Tick (/) the correct OP! of force acting upon the object and sum ‘acting upon the body is both equalta fy is said to be in When the sum of the movement zero then the bod) (a) Equilibrium (b) Static equilibrium (c) Dynamic equilibrium (d) Zero force position of the centre of gravity changes depending 2. The} upon the (a) position of force (b) position of the body (c) position of the intersection of force (d) position of stability 3. Centre of gravity is the average location of an objects (a) weight (b) force (c) balance (d) velocity Answers:1.(a) 2. (b) 3. (a) I. Answer the following questions briefly. 1. What do you understand by equilibrium? What arethe types of equilibrium? ‘Ans. Ref. Page 164 2. Give suitable examples of the type of equilibrium applied to sports /games. Ans. Ref. Page 164 3. Define the centre of Gravity. Ans. Ref. Page 166, Point 8.3.2 mW AN A 1 Whean the following questions in 150-200 words. on 'Y do wrestlers spread their arms, knees, and le8so" ang eat when they fall eae broper balance position, this position mate tabllty oe the OPPOSite player to move him: NOP Stability oecurs when the centre of gravity i owe @ person lying down is much more tha"?Ans. 84 Answers:1.(0) 2. u 1. Ans. 2. Ans. 3, pons m1. 1. ) Ans. Ans, a; Ans. sy wesw wecause in the lying down centre Rravity lies in a more lower level, Discuss the importance of the centre with suitable examples. Ref. Page 166 FRICTION & SPORTS Tick (v) the correct option. The Friction force acts in a/an direction of motion of an object (a) opposite (b) same (c) downwards (d) diagonal Among the following sports, in which does frict the least important role? Position, ‘of gravity in sports (Page 295) direction to the tion plays. (a) Car Race (b) Football (c) Hockey (d) Ice Skating Friction is a~ (a) Magnetic Force (b) Non-contact Force (c) Contact Force (d) Couple Force Cyclist often wears streamlined helmets and specially designed clothing to reduce Calibration (a) Fluid Friction (b) Rolling Friction (c) Sliding Friction (d) None of these (d) 3. (c) 4. (a) Answer the following questions briefly. Define Friction. Ref. Page 166, Point 8.4 What is Air Resistance? Ref. Page 168, Point (5) What do you mean by ‘Friction is a necessary evil’? Because friction may be both beneficial and detrimental, it is referred to as a necessary evil. Friction facilitates Our ability to write, grasp, move, and lift stuff. Thus, it is essential to our survival. Numerous necessary operations cannot be completed without friction. However, there are instances where it is also superfluous. ‘Answer the following questions in 150-200 words. Discuss various types of friction, Ref, Page 166, Point 8.4.1 's friction advantageous or disadvantageous in games and sports? Shoes and foot friction on the surface aid in speed. The item moves faster with the assistance of frictional forces. For instance, sportsmen utilise spikes to sprint quickly. Energy wastage: Extra energy is lost because there is more friction. Write down the methods of reducing friction and explain any two with suitable example. By employing ball bearings, the friction between the rolled object and the surface may be decreased while rolling things over it. The friction between the sur can be decreased by using lubricants like oil or grease Friction may be decreased and the surface becomes smoother after polishing, ———w PROJECTILE IN spoRrs Tick (7) the correct option, (Page 302) Factors that bring Bar teistance ng (a) Larger the surface area(b) R: ates {c) Smaller the mass. f The motion of » Ugh surface (4) All of the above Projectile is due to + simultaneously o¢ Wo Separates Occurring componen fnevaes "8 components of motion ang (2) One aton, 18 the vertical (6) One along the horizontal (6) Both (a) ana (a) (d) None of the above 3+ According to Professor John Fontanel, from the freethrow ’ shorter players, (a) 48.7 degrees to 52.2 degrees (b) 45.6 degrees to 50.2 degrees (c) No specific degree {d) Any degree Answers:1.(a) 2, (b) 3. (0) |. Answer the following questions briefly. 1. Define Projectile Ans. Ref. Page 168, Point 8.5 2. What is Air Resistance? List any four factors, Ans. Ref. Page 168, Point (5) IL. Answer the following questions in 150-200 words With suitable example explain different tyos: 2° Projectiles in sports, Ans. Ref. Page 169 2. Discuss various factors affecting projectile motion ‘Ans. Ref. Page 168 3. Is projectile advantageous in games and sports? Justify Ans, Projectile motion concepts are applied by olayers in sports like baseball, basketball, and soccer when they shot, pass, or throw. Athletes can improve their accuracy, distance, and overall performance in various sports by understanding the trajectory, angie, and velocity of a projectile IV. Read the given situations and write which of Newton's Laws of Motion applies to it. ee S.No. Sports situation __| Law of motion | 1. |When a ball is thrown | kicked, or struck with an| implement, it tends to travel | inthe direction ofthe line of action of the applied force. The greater the amount of force applied, the greater | deal angles newillvaryfrom tg the speed the ball has. + | 2, | A skater gliding on ice will | continue gliding with the same speed andin the same | direction unless an external | iets upon the ater: Biomechanics and Sports 174XN hes The upon different sports and games wher orn Bro oes are applied with practical ge" 3.” ] The force applied the ball] fas ond BODE e iassds |'S matched with an equal and presented in their | and opposite force applied ise study [|e the teehee ip AL 4. | When a white ball (the cue — | | ball) hit a yellow or aren | a | ballin billiards, | arrow in archery to hit the [target | “ Ans. Dot yourself, her gymnastics practice, 20a was finding V. ART INTEGRATION ~ IDENTIFY, PERFORM AND MAKE REE tomaintain her balance on the balancing bea," cana sai Her coach tried to explain to her about basic pring We do different types of activities in our daily life | ot ccullokorns routine; in the same way, Newton's law of motion inciples of equilibrium Cen, applies to those activities. In your classroom, make Accoring tn the petiiins of re of BrOUpS and select different games for different groups priv ois 3 Yan eee hong ising Identify three fundamental skills from those games, (a) elle if Berform them and identify which Newton's law of motion {b) ____ base more stability. relates to that skill. Make activity-cumlearning cards and (c) There are two types of equilibrium name), write the following details in the table given below: and ; SNe. | Game | Fundamental! Name of [Remarks] | answers skills ea {a) Midpoint (b) More ion Ans. Do it yourself, VI. SPORTS INTEGRATED Sports science isa fascinating topic on its own, and most Physical sports require having a basic understanding Of scientific concepts. Consider the amount of physics involved with a sport like a golf - a golfer must understand the concept of a trajectory and how this. can be affected by a multitude of factors (wind speed and direction, for instance). From tennis to basketball, angles, arches, mass, the center of gravity, angle of contact/release, etc, are all involved with these types of sports! Based on this students can make a project individually Additional Questi Objective Type Questions {. Multipte Choice Questions (c) Static equilibrium and Dynamic equilibrium 2. While explaining how to release basketball at a correct angle to successfully score points the basketball coach showed students this picture. Le Ee c Basketball players wanted to know more about Projectiles. Therefore the ‘coach explained to them the factors affecting flight of an object. (2) An object covers less distance when the projected Path is at degrees. (6) If the ini ial velocity is low the object will cover ——__ distance. (c) If the weight of the Object is more the impact of Bravity will be Answers: (a) 30° (0) less (c) more ons with Answers (2) Law of acceleration (6) Law of inertia I. Newton’s second law of motion is: Physical Education—Xi (0) Law of action an id reacti (4) None of these “action(a) Law of inertia (¢) Law of reaction ICBSE SP 2019-20) 9. Acceleration runs are used to improve {a} Strength {b) Endurance: (c) Speed (Gj Flexibility ICBSE SP 2019-20) 10. The Law of acceleration is also known as: (0) Law of inertia (b) Law of action and reaction {c) Lawof momentum —_(d) Boyle’staw [CBSE2020] Bio-mechanits helps in which of the following? (0) inimproving technique (6) In improving designs of sports equiome: (c) In improving performance d) Allof these 1 [¢BSE 2020) ‘The force of friction depends upon 2) Nature of surface of contact (b) Material of objects in contact {c) Both (a) anc (6) {d) None of the above [CBSE 2020) 13. Acceleration of an object will increase as the net force increases depending on its (a) Density (6) Mass (c) Shape (d) Volume [CBSE SP 2020-21) The three basic components of a lever are (0) Mass, weight & velocity. (6) Force, Fulcrum & Load {¢) Fulcrum, Resistance & Effort {d) Both (b) and (¢} In the human body, the most common class of lever is (a) st Class lever (6) 2nd Class lever (c) 3rd Class lever (d) None of these 16. Which of the following is NOT the factor affecting projectile trajectory? 15. 1 Sass Assertion-Reason Type Question ne : Assertion (A) 2 Assertion (A) °4 Reason (R) : explanation of (A) Biomechanics and Sports 173IV. Picture Based (ldentification) Question Ans. (2) Stati b) Dynamic V. Very Short Answer Type Questions 1s what is “Dynamic Fri Ans. Ref. Page 166, Point (2) 2. What i is gravity? Ans. Ref. Page 168, Point (4) 4. What is initial vel Ans. Ref. Page 168, Point (3) 8. Short Answer Type Questions-I 1 he Newton's laws of Ans. Ref. Page 161, Point 8.1 what is Friction? Ans. Ref. Page 166, Point 8.4 3. How many types of friction are there? Ans. Ref. Page 166, Point 8.4.1 4 © how many types? Explain (CBSE SP 2013-20) Ans. Ref. Page 166, Point 8.4.1 5. Expiain the meaning of ‘equilibrium’ Ans. Ref. Page 164, Point 8.3 6. Describe the ‘Centre of gravity’ Ans. Ref. Page 166, Point 8.3.2 7, With suitable examples exp Rewton’s law in sports Ans. Ref. Page 161-162, Point 8.1 5 eee nieces Page 168, Point (5) ND. Winat ie mean by suifaceof the objec? ‘Ans. Ref.Page 168 10. Describe the “mass Ans. Ref. Page 168 11. Define Lever. the application of (CBSE 2020} 474 Physical Education—XU! Ref. Page 163 i c. Short Answer Type Questions~|1 . Ref. Page 162 3 Long Answer Type Questions ef. Page 164, Point 83.1 Ethan ine centre of gravity "Ref. Page 166, Point 8.3.2 pHod yf roe we Ref. Page 168, Point (6) ith the h ok wEoknd Friction? Write the advantagesand ‘able examples fro: . Ref. Page 166 & 167, Point 8.4 With the help of suitable examples, application of Newton's Laws of Motion in spo oh 5. Ref. Page 161-162, Point 8.1 Case Study Based Question Read the following case study and answer te questions given below. 1. Divya and Jolly are good basketball them practice regularly. But during compe Performs good while Divya is not able to perform Frostof the time. One day she decided to ask there forthe good performance to Jolly. Being = good Jolly told her th 0 perfo fitter. Then her coach advised to execute the 7 teCPing in mind the basic principles of 12 iow Jolly was able to demonstrate better gare Ans. conmusablet© demonstrate beter perms Ring the basic principles of biomech: coach Ee basic principles of biomed Discuss the importanc, Sports, me lat she also wasn’t able t: @ Ans. #€ of biomechanics in ete ap between the p7 ce of the principtes of phys intich the seed -or huthea arate alyzed and tried to improve aos is the study of mechanical i2ws " (ii) Biomechan; to the movement. bi iscuss Ans. Biomechanics is the branch of physics in wh Preana! USES of mechanics ere evn Practical use of m, a fechanics. Mechanics Combination of kinetic and state nen ysis.Student 8 Student C @ 2ove Catz, answer the following 7 position of student A shows 2 of gravity and high stability tre of gravity and hi stability 3Vty and low stability centre of gravity and low stability position of student 8 shows centre of gravity and more base and more ay re of re of gravity and less base and more stability (cl) High centre of gravity and more base and less stability (a) Low centre of gravity and less base and less ability (i) The standing position of student C shows (a) Low centre of gravity and line of centre of gravity is in the centre of base (8) Low centre of gravity and line of centre of s after the centre of base tre of gravity and line of centre of g72v ty 's before the centre of base (a) High centre of gravity and line of centre of gravity is before the centre of base nswers: () (6 (0) (ii) (2) 3. Study the pictures given (a) 8 Moving Ba Stationary Bal Based on your above stusiy and you the following que: (a) Which aw of mation of the dal! as ation (ay (8) Imitlustration (8) which force s act the ba to slow it down? (e)_ Which taw of motion will determine the quality of bounce? (a) ___of anobject directly depends u ™ Of the object and net force applied Ans. (a) Newton's first law (6) Friction (0) Third taw of motion (e} Acceleration 4 During her gymnastics practice. Zoya was difficult to maintain ner balance on the balancin, Her coach tried to evs 3 of equilibrium NO gp tO her about basic According to the principies of equ gravity plays a very important role. (a) The nearer the center of gravity to the center of the base of support the more will be the ibrium centre of (b) The position of the centre of gravity changes depending upon the ... (c) The sum of all the vertical and horizontal forces acting on the body must be ... : {d) Centre of gravity is the average location of an object's . [cBSE SP 2023-24] Ans. (a) Stability (6) Position ofthe body (e) zero (@) weight Art Integrated Activity Students will be shown the video clippings of the various skills used in sports and their execution. The teacher will explain the biomechanical principles associated with those skills which helps the athletes to maximise their performance and minimise the consumption of energy, ©. application of Newton’s third law in dribbling (i basketball). Suggested Links ‘© "www.physio-pedia.com/Biomechanics_In_Sport s://yout.be/2VXeKSCofIM Gaines 1. During your ph Fanning, education teacher, perform motor actions like f motion defines the activity you performed and give remarks, law | Remarks ] Biomechanics and Sports 175