Biomechanics and Sports Class 12 Case Based MCQ Questions
Case-Based Questions
Case Study 1
Altaf, a new student in the school was very much interested / in taking part in the school sports events. He was taught the latest rules and regulations of football game. In due course, he learnt biomechanical aspects of the game including various movements.
Question 1.
The type of movement in which the angle between joint decreases is called:
(a) flexion
(b) extension
(c) gliding
(d) sliding
Answer:
(a) flexion
Question 2.
Straightening parts of a joint so that the angle increases:
(a) flexion
(b) extention
(c) abduction
(d) adduction
Answer:
(b) extention
Question 3.
Moving a part away from mid line is:
(a) flexion
(b) extension
(c) abduction
(d) adduction
Answer:
(c) abduction
Question 4.
Moving a part towards the mid line is:
(a) flexion
(b) extension
(c) abduction
(d) adduction
Answer:
(d) Adduction
Question 5.
Flexion and extension comes under movement.
(a) gliding
(b) angular
(c) rotation
(d) circumduction
Answer:
(b) angular
Case Study 2
Abhishek, the Class 12 monitor, was asked to speak on different types of movements possible in human body and their importance. He talked about four basic movements namely flexion, extension, abduction and adduction. Rest of the movements at different joints are combinations of these four basic movements. He also demonstrated about dorsiflexion and planter flexion movements.
Question 1.
What movement that he demonstrated were possible at the shoulder joint?
(a) Gliding
(b) Angular
(c) circumduction
(d) Rotation
Answer:
(c) Circumduction
Question 2.
At what joint do dorsiflexion and planter flexion movements take place?
(a) Knee joint
(b) Shoulder joint
(c) Ankle joint
(d) Hip joint
Answer:
(c) Ankle joint
Question 3.
Which is the maximum range of movement possible at any joint?
(a) 90 degree
(b) 180 degree
(c) 270 degree
(d) 360 degree
Answer:
(d) 360 degree
Case Study 3
In biomechanics class, Gopi, the teacher, brings the students to the physics lab of his school. The students get confuse(d) After the completion of the class, they realized the fact.
Question 1.
Why does the teacher bring the students to physics lab for biomechanics class?
(a) To explain the principle of Physics
(b) To explain the law of inertia
(c) To discuss about law of acceleration
(d) To explain the law of reaction
Answer:
(a) To explain the principle of Physics
Question 2.
Biomechanics is associated with:
(a) Mechanics
(b) Physics
(c) Mechanics and Physics
(d) Mechanics and Anatomy
Answer:
(d) Mechanics and Anatomy
Question 3.
Biomechanics is the science concerned with the:
(a) internal forces
(b) external forces
(c) Both (a) and (b)
(d) None of these
Answer:
(c) Both (a) and b.
Case Study 4
While talking about Newton’s laws of motion and their application in sports, a Physical Education teacher gave examples from cycling, swimming and cricket. He also told that while cycling, the cyclists only move when they start to pedal and stop only when they apply brakes. While swimming, the swimmers use the wall of the pool to generate the force needed to take off.
Question 1.
Which law is applied to cyclists?
(a) Law of inertia
(b) Law of acceleration
(c) Law of reaction
(d) Law of momentum
Answer:
(a) Law of inertia
Question 2.
Which law is in force when the swimmer pushes off the wall of the swimming pool to start the race?
(a) Law of inertia
(b) Law of acceleration –
(c) Law of reaction
(d) Law of momentum
Answer:
(b) Law of acceleration
Question 3.
Which law is in play when the ball is hit by the batsman?
(a) Law of inertia
(b) Law of acceleration
(c) Law of reaction
(d) Law of momentum
Answer:
(c) Law of reaction.
Case Study 5
During the physical education class Newton’s Laws of motion were discussed and their practical application in sports events was explained to students. These laws are most relevant in sports as most of the actions in sports are related to these laws.
Question 1.
What is the relationship between mass and force?
(a) Directly proportional
(b) No relationship
(c) Inversely proportional
(d) Both (a) and c.
Answer:
(c) Inversely proportional
Question 2.
The acceleration of an object depends inversely upon the object’s:
(a) weight
(b) mass
(c) height
(d) density
Answer:
(b) mass
Question 3.
A high jumper can jump higher off a solid surface because it opposes his or her body with as much force as he or she is able to generate. This example refers to:
(a) Law of conservation
(b) Law of inertia
(c) Law of action and reaction
(d) Law of gravity
Answer:
(c) Law of action and reaction
Case Study 6
The teachers as well as coaches always make their best efforts to improve the performance of their students in various competitive games and sports. They can help to improve the performance of students if they have adequate knowledge of biomechanics.
Question 1.
The more force one exerts on the downward bounce, the higher the ball bounces into the air. Which law in this statement being referred to?
(a) Newton’s 1st law
(b) Newton’s 2nd law
(c) Newton’s 3rd law
(d) Law of gravitation
Answer:
(c) Newton’s 3rd law .
Question 2.
The acceleration of an object depends directly upon the net force acting upon the object and inversely upon the object’s:
(a) weight
(b) mass
(c) height
(d) density
Answer:
(b) mass
Question 3.
The study of human body and various forces acting on it is:
(a) Biology
(b) Biomechanics
(c) Physiology
(d) Anatomy
Answer:
(b) Biomechanics
Case Study 7
Mr Sunder is a Physical Education teacher in a government school. Ramesh, a student is a long jumper but his landing is improper. So he could not win the event on sports day in the school. So Ramesh approached Mr Sunder to seek his help to improve his performance. Mr Sunder explained to Ramesh the proper technique to be followed so as to have the correct body posture while landing. Mr Sunder also motivated Ramesh to constantly practise this technique to perfect it. After the one year of training, Ramesh won the gold medal in the Inter Zonal Athletic Meet.
Question 1.
What was the problem faced by Ramesh?
(a) Improper landing in long jump event
(b) Not winning any medal
(c) improper performance
(d) Incorrect body posture
Answer:
(a) Improper landing in long jump event
Question 2.
Why did Ramesh approached Mr Sunder?
(a) To follow proper technique
(b) To seek help to improve his performance
(c) To win the medal
(d) None of the above
Answer:
(b) To seek help to improve his performance
Question 3.
Mention the reason why Mr Sunder explained Ramesh to follow proper technique.
(a) To have correct body posture
(b) To improve his movements while playing
(c) To have perfection in long jump
(d) So that he could win the medal in the Inter Zonal Athletic Meet
Answer:
(a) To have correct body posture
Assertion-Reason Type Questions
Directions (Q.NOS. 85-94): Each of che following questions consists of two statements, one is Assertion (A) and the other is Reason (R). Select the correct answer to these questions from the codes (a) (b) (c) and (d) as given below:
(a) Both A and R are true and R is correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
Question 1.
Assertion (A): Biomechanics plays a vital role in the enhancement of performance of an athlete.
Reason (R): Biom echanics helps the athletes in the prevention of several serious injuries.
Answer:
(a) Both A and R are true and R is correct explanation of A.
Question 2.
Assertion (A): The magnitude of the force of friction depends on the roughness of the surface.
Reason (R): When both the surfaces are smooth, the force of friction reduces to almost zero.
Answer:
(b) Both A and R are true but R is not the correct explanation of A.
Question 3.
Assertion (A): Biomechanics aims to achieve performance enhancement in sports.
Reason (R) : Qualitative analysis helps in technique improvement and injury prevention.
Answer:
(a) Both A and R are true and R is correct explanation of A.
Question 4.
Assertion (A): The primary purpose of biomechanics is to evaluate a living organism’s motion as well as its application of force.
Reason (R) : Biomechanics is the study of forces and their effects on living systems.
Answer:
(b) Both A and R are true but R is not the correct explanation of A.
Question 5.
Assertion (A): Angular motion decreases or increases the angle between two adjoining bones.
Reason (R): Extension is a type of angular motion.
Answer:
(b) Both A and R are true but R is not the correct explanation of A.
Question 6.
Assertion (A): Circumduction takes place between the head of a bone and its articular cavity.
Reason (R) : It is a compound circular movement which involves flexion, extension, adduction and abduction.
Answer:
(b) Both A and R are true but R is not the correct explanation of A.
Question 7.
Assertion (A): Rotation is moving a part around an axis.
Reason (R): Rotation is seen in shoulder and hip joints.
Answer:
(c) A is true but R is false.
Question 8.
Assertion (A): A high jumper can jump higher off a solid surface.
Reason (R): The solid surface opposes his/her body with as much force as he/she is able to generate in contrast to sand or any other unstable surface.
Answer:
(a) Both A and R are true and R is correct explanation of A.
Question 9.
Assertion (A): Law of acceleration is applied in various sports.
Reason (R): If two equal forces are applied to objects of equal mass, the object that has greater force applied will move faster.
Answer:
(c) A is true but R is false.
Question 10.
Assertion (A): Law of acceleration is the second law of motion.
Reason (R) : For every action, there is always an equal and opposite reaction.
Answer:
(b) Both A and R are true but R is not the correct explanation of A.