Biomechanics and Sports — Class 12 Physical Education PYQs

What type of lever has the load resistance between the fulcrum and the force ?
(A) First class lever
(B) Second class lever
(C) Both (A) and (B)
(D) Third class lever

“The golf ball remains at rest until it is struck by a golf club.” This statement indicates –
(A) Law of Inertia
(B) Law of Acceleration
(C) Law of Gravity
(D) Law of Reaction

When wrestlers fall on the mat, why they spread their arms, knee and legs ? Justify your answer.

What do you mean by Equilibrium ? Explain how Equilibrium increases with the influence of various factors by giving suitable examples from sports.

Identify the factor which decreases equilibrium.
(a) Larger base
(b) Greater weight
(c) Lower centre of gravity
(d) Higher centre of gravity

Describe the second class lever with suitable example from sports.

Mention any two types of friction by giving suitable examples from sports.

What do you understand by projectile trajectory ? Explain the factors affecting projectile trajectory in sports.

Which of the following is NOT the factor affecting projectile trajectory ?
(a) Gravity
(b) Angle of Release
(c) Buoyant Force
(d) Air Resistance

Centre of Gravity is the average location of an object’s ______
(a) Weight
(b) Force
(c) Resistance
(d) Velocity