Biomechanics and Kinesiology Basics MCQs 2026

A first-class lever has the fulcrum

1. Abetween the effort and the resistance✓
2. Bat the end of the resistance arm only✓
3. Cbetween effort and resistance with resistance always closest to effort✓
4. Donly at the point of application of effort✓

A wheelbarrow is an example of

1. Aa first-class lever✓
2. Ba second-class lever✓
3. Ca third-class lever✓
4. Da pulley system only✓

Most human body levers at joints are

1. Athird-class levers✓
2. Bfirst-class levers✓
3. Csecond-class levers✓
4. Dfixed pulleys only✓

Mechanical advantage of a lever equals

1. Aeffort arm divided by resistance arm✓
2. Bmass times velocity✓
3. Cforce times distance only✓
4. Dresistance arm length divided by effort arm length✓

Newton's second law of motion states that force equals

1. Amass divided by acceleration✓
2. Bmass multiplied by acceleration (F = ma)✓
3. Cacceleration divided by mass✓
4. Dmass plus acceleration✓

Newton's third law states that for every action there is

1. Aan equal and opposite reaction✓
2. Ba smaller reaction in the same direction✓
3. Cno reaction in static balance✓
4. Donly a reaction when friction is zero✓

Newton's first law (inertia) means a body at rest stays at rest unless

1. Aacted upon by an unbalanced external force✓
2. Bgravity disappears✓
3. Cmass becomes zero✓
4. Dfriction always increases✓

Static balance refers to

1. Abalance only during rapid rotation✓
2. Bmaintaining equilibrium while the body is stationary✓
3. Cbalance while center of gravity moves outside the base✓
4. Donly dynamic recovery from a stumble✓

Dynamic balance involves

1. Acomplete absence of movement✓
2. Bonly seated posture✓
3. Czero need for proprioception✓
4. Dmaintaining stability while the body or its parts are moving✓

The center of gravity (COG) of the human body is typically located

1. Aat the top of the skull✓
2. Bat the lateral malleolus✓
3. Coutside the body in all postures✓
4. Dslightly anterior to the second sacral vertebra in standing adults✓

A wider base of support generally

1. Adecreases stability always✓
2. Bhas no effect on balance✓
3. Cincreases stability✓
4. Deliminates the need for core strength✓

Lowering the center of gravity relative to the base of support

1. Areduces stability✓
2. Bonly affects speed not balance✓
3. Capplies only in water✓
4. Dimproves balance and stability✓

The sagittal plane divides the body into

1. Asuperior and inferior parts✓
2. Banterior and posterior parts✓
3. Cleft and right halves✓
4. Donly the upper and lower limbs✓

The frontal (coronal) plane divides the body into

1. Aleft and right halves✓
2. Bsuperior and inferior parts✓
3. Canterior and posterior parts✓
4. Donly medial structures✓

The transverse (horizontal) plane divides the body into

1. Aleft and right halves✓
2. Banterior and posterior parts✓
3. Conly the trunk✓
4. Dsuperior and inferior parts✓

Movement in the sagittal plane occurs around the

1. Alongitudinal axis✓
2. Bmedial-lateral (frontal) axis✓
3. Canterior-posterior axis✓
4. Dvertical axis only in all planes✓

Movement in the frontal plane occurs around the

1. Amedial-lateral axis✓
2. Blongitudinal axis✓
3. Canterior-posterior (sagittal) axis✓
4. Dvertical axis only✓

Movement in the transverse plane occurs around the

1. Alongitudinal (vertical) axis✓
2. Bmedial-lateral axis✓
3. Canterior-posterior axis✓
4. Dhorizontal axis only in sagittal plane✓

Torque in biomechanics is defined as

1. Aforce multiplied by the perpendicular distance to the axis of rotation✓
2. Bmass times velocity only✓
3. Cforce divided by distance✓
4. Donly gravitational pull on mass✓

Angular momentum is conserved when

1. Alinear speed is constant only✓
2. Bno external torque acts on a rotating system✓
3. Cfriction is always present✓
4. Dmass changes randomly✓

Friction between the foot and ground during sprinting

1. Aeliminates all reaction forces✓
2. Bprovides horizontal propulsive force via ground reaction✓
3. Conly reduces speed without propulsion✓
4. Dis irrelevant to acceleration✓

The ground reaction force during walking acts

1. Aonly upward with no horizontal component✓
2. Bonly when the athlete is airborne✓
3. Cin the same direction as foot push✓
4. Dequal and opposite to the force the foot applies to the ground✓

A longer effort arm in a third-class lever

1. Aalways multiplies force output✓
2. Beliminates need for muscle contraction✓
3. Cincreases speed and range of motion at the expense of force✓
4. Dmakes the lever first-class✓

Stability is greatest when the line of gravity falls

1. Awithin the base of support✓
2. Boutside the base of support✓
3. Cabove the head only✓
4. Dbelow the feet only✓

Kinesiology is the study of

1. Ahuman movement✓
2. Bonly muscle anatomy without motion✓
3. Conly sport psychology✓
4. Donly fitness testing norms✓

Biomechanics applies principles of

1. Aonly psychology to coaching✓
2. Bonly nutrition to athletes✓
3. Conly sociology of sport✓
4. Dmechanics to biological systems✓

A force couple produces

1. Aonly linear acceleration✓
2. Bpure rotation without translation✓
3. Conly static balance without torque✓
4. Donly friction reduction✓

Projectile motion of a ball is influenced by

1. Aonly the athlete's height✓
2. Bonly air temperature✓
3. Cangle of release, initial velocity, and gravity✓
4. Donly footwear brand✓

The coefficient of restitution in a bounce relates to

1. Aonly muscle flexibility✓
2. Belasticity of the collision✓
3. Conly aerobic capacity✓
4. Donly coaching style✓

Impulse equals

1. Amass times velocity squared✓
2. Btorque divided by distance✓
3. Conly body weight✓
4. Dforce multiplied by the time over which it acts✓

Linear momentum equals

1. Aforce times time only✓
2. Bmass multiplied by velocity✓
3. Ctorque times distance✓
4. Dacceleration divided by mass✓

Centripetal force in a curved sprint path is directed

1. Atangential to the path only✓
2. Baway from the center✓
3. Ctoward the center of the curve✓
4. Donly vertically downward✓

The fulcrum in a seesaw is an example of

1. Aa second-class lever✓
2. Ba third-class lever✓
3. Ca fixed pulley✓
4. Da first-class lever✓

Raising the arms overhead shifts the body's center of gravity

1. Aupward✓
2. Bdownward only✓
3. Claterally only without vertical change✓
4. Doutside the body always✓

Proprioception contributes to balance by providing

1. Aonly visual information✓
2. Bawareness of limb and body position in space✓
3. Conly auditory cues✓
4. Donly heart rate data✓

A narrow base of support in gymnastics on a beam

1. Aalways increases stability✓
2. Beliminates need for core tension✓
3. Creduces stability and demands greater balance control✓
4. Dprevents all falls✓

Abduction occurs in which anatomical plane

1. Asagittal✓
2. Btransverse only✓
3. Coblique only in all joints✓
4. Dfrontal (coronal)✓

Flexion at the elbow occurs primarily in the

1. Afrontal plane✓
2. Btransverse plane only✓
3. Csagittal plane✓
4. Dhorizontal plane only for all joints✓

Internal rotation of the hip occurs in the

1. Asagittal plane only✓
2. Bfrontal plane only✓
3. Ctransverse plane✓
4. Dcoronal plane only✓

Summation of forces in throwing means

1. Asequential use of body segments to maximize end-point velocity✓
2. Busing only the arm✓
3. Cholding all segments rigid✓
4. Dreducing range of motion✓