CBSE Class 12 Physical Education Biomechanics and Sports VBQs Set 02

Question. Acceleration of an object will increase as the net force increases depending on its:
(a) Density
(b) Mass
(c) Shape
(d) Volume
Answer: (b) Mass

Question. In normal walking at a person’s preferred speed, the ratio of the durations of the stance and swing phases is roughly:
(a) 1-1
(b) 2-3
(c) 2-1
(d) 3-2
Answer: (d) 3-2

Question. In plantar flexion of the foot about the ankle joint:
(a) The foot moves upwards towards the front of the calf
(b) The foot moves upwards towards the rear of the calf
(c) The foot moves sideways
(d) None of the options
Answer: (b) The foot moves upwards towards the rear of the calf

Question. At touchdown in walking, the knee is normally:
(a) Fully extended
(b) Slightly flexed
(c) Fully flexed
(d) Slightly expended
Answer: (b) Slightly flexed

Question. Flexion and extension are:
(a) Movements in the frontal plane about the sagittal axis
(b) Movements in the sagittal plane about the frontal axis
(c) Movements in the horizontal plane about the vertical axis
(d) None of the options
Answer: (b) Movements in the sagittal plane about the frontal axis

Question. Internal and external rotation are movements in which anatomical plane ?
(a) Sagittal
(b) Frontal
(c) Horizontal
(d) None of the options
Answer: (c) Horizontal

Question. Movements that occur primarily in the sagittal plane are:
(a) Adduction, lateral flexion, flexion, dorsiflexion
(b) Flexion, extension, dorsiflexion, plantar flexion
(c) Flexion, extension, dorsiflexion, internal-external rotation
(d) Supination and pronation of the forearm
Answer: (b) Flexion, extension, dorsiflexion, plantar flexion

Question. Abduction and adduction take place about which axis?
(a) Oblique
(b) Longitudinal or vertical
(c) Frontal or mediolateral
(d) Sagittal or anteroposterior
Answer: (d) Sagittal or anteroposterior

Question. Flexion and extension are:
(a) Movements in the frontal plane about the sagittal axis
(b) Movements in the sagittal plane about the frontal axis
(c) Movements in the horizontal plane about the vertical axis
(d) None of the options
Answer: (b) Movements in the sagittal plane about the frontal axis

Question. How do we define the phases into which we often break fundamental movements to simplify biomechanical analysis?
(a) Biomechanically distinct functions and easily identified boundaries
(b) Easily identified functions and clearly defined boundaries
(c) Anatomically distinct functions and easily identified boundaries
(d) Medically distinct functions and clearly defined boundaries
Answer: (a) Biomechanically distinct functions and easily identified boundaries

Question. In plantar flexion of the foot about the ankle joint:
(a) The foot moves upwards towards the front of the calf
(b) The foot moves upwards towards the rear of the calf
(c) The foot moves sideways
(d) None of the options
Answer: (b) The foot moves upwards towards the rear of the calf

Question. Movements that occur primarily in the sagittal plane are:
(a) Adduction, lateral flexion, flexion, dorsiflexion
(b) Flexion, extension, dorsiflexion, plantar flexion
(c) Flexion, extension, dorsiflexion, internal-external rotation
(d) Supination and pronation of the forearm.
Answer: (b) Flexion, extension, dorsiflexion, plantar flexion

Question. The plane which divides the body into a left and a right is called : 
(a) coronal plane
(b) sagittal plane
(c) vertical plane
(d) transverse plane
Answer: (b) sagittal plane

Question. Sports biomechanics cab be described as :
(a) mechanics of sports
(b) kinesiology
(c) physics of sports
(d) sports dynamics
Answer: (c) physics of sports

Question. Newton’s Second Law of Motion is also known as :
(a) Law of Reaction
(b) Law of Inertia
(c) Resultant Force
(d) Law of Effect
Answer: (c) Resultant Force

Directions: In the context of above two statements, which one of the following is correct?
(a) Both (A) and (R) are true and (R) is the 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. Assertion (A): Sports biomechanics is a quantitative based study and analysis of professional athletes/ sportspersons and sports activities in general.
Reason (R): In simple terms, it may be described as the physics of sports.
(a) Both (A) and (R) are true and (R) is the 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.
Answer: (b) Both (A) and (R) are true, but (R) is not the correct explanation of (A).

Question. Assertion (A): Sports biomechanics is limited to the study those individuals who are involved in exercise or sports or any physical activity.
Reason (R): Performance enhancement is one of the area of the study in sports biomechanics.
(a) Both (A) and (R) are true and (R) is the 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.
Answer: (b) Both (A) and (R) are true, but (R) is not the correct explanation of (A).

Question. Assertion (A): Sportsperson’s performance can be improved by improving her/his technique.
Reason (R): The application of biomechanical principles can be applied to improve technique.
(a) Both (A) and (R) are true and (R) is the 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.
Answer: (a) Both (A) and (R) are true and (R) is the correct explanation of (A).

Question. Match List – I with List – II and select the correct answer from the code given below:
LIST-I
(i) Abrasion
(ii) Green stick fractures
(iii) Shoulder Dislocation
(iv) Lack of fitness
LIST-II
A. Joint Injuries
B. Soft tissue injuries
C. Cause of sport injuries
D. Bone injuries
Codes:
(a) 1–D, 2–A, 3–C, 4–B
(b) 1–B, 2–A, 3–C, 4–D
(c) 1–B, 2–D, 3–A, 4–C
(d) 1–A, 2–D, 3–B, 4–C
Answer: (c) 1–B, 2–D, 3–A, 4–C

Vishal is about to start a race of 100 meter sprinting. He is ready at the start line, and begins running at the sound of the gunshot and wins the race. Based on this case answer the following questions:

Question. While at the start line which of the following Newton’s Law works on the body of Vishal:
(a) Law of Gravity
(b) Law of Acceleration
(c) Law of Action Reaction
(d) Law of Inertia
Answer: (d) Law of Inertia

Question. As Vishal sprints on the track which of the following Newton’s Law is applicable:
(a) Law of Acceleration
(b) Law of Action Reaction
(c) Law of Hooke
(d) Law of Ohm
Answer: (a) Law of Acceleration

Question. While sprinting Vishal’s leg move back and forth at the hip joint. Which type of movement occurs at the hip joint?
(a) Flexion and Extension
(b) Adduction and Abduction
(c) Dorsi and Planter Flexion
(d) Supination and Pronation
Answer: (a) Flexion and Extension

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. The more force one exerts on the downward bounce, the higher the ball bounces into the air. Which law is 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. Among the above given pictures, Newton’s 3rd law is depicted in
(a) First
(b) Second
(c) Both
(d) None of the options
Answer: (c) Both

Question. 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. The study of human body and various forces acting on it is
(a) Biology
(b) Biomechanics
(c) Physiology
(d) Anatomy
Answer: (b) Biomechanics

Question. 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 & reaction
(d) Law of gravity
Answer: (c) Law of action & reaction

Sohan, 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. 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. Straightening parts of a joint so that the angle increases
(a) Flexion
(b) Extension
(c) Abduction
(d) Adduction
Answer: (b) Extension

Question. Moving a part away from mid line is
(a) Flexion
(b) Extension
(c) Abduction
(d) Adduction
Answer: (c) Abduction

Question. Moving a part towards the mid line is
(a) Flexion
(b) Extension
(c) Abduction
(d) Adduction
Answer: (d) Adduction

Question. Flexion and extension comes under _________ movement.
(a) Gliding
(b) Angular
(c) Rotation
(d) Circumduction
Answer: (b) Angular