VCE PE Unit 3 Ch3 - Kinetic concepts of biomechanics

Biomechanics is

• The study of human movement form a mechanical perspective

• Like a mechanic for living things.

• Concerned with the physiology of the human body.

• The latest antibiotic available for a nasty flu

A force that occurs between two surfaces in contact with each other, opposing motion is...

• Inertia

• Momentum

• Friction

• Momentum

Which one of the following would decrease the friction between two contact surfaces

• The use of magnesium chalk in gymnastics

• Screw in stops in football

• Waxing a surfboard

• Synovial fluid in a joint

Mass x Velocity =

• Impulse

• Momentum

• Intertia

• Acceleration

Impulse =

• Mass x Time

• Force x Velocity

• Force x Time

• Time x Acceleration

The angular momentum of a gymnast performing a double somersault dismount will be.

• Highest during the tuck phase

• Highest during the layout phase

• lowest during the layout phase

• constant throughout the movment

Which law relates to the law of 'Action / Reaction'

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

• The law about wearing a seat belt in a car.

If the torque applied to an object was constant then the object with a very small moment of inertia will

• Have greater angular velocity

• Have small angular velocity

• Have the same angular velocity as an object with a large moment of inertia and the same torque applied.

• Probably fall over, because it could get dizzy.

I will have my homework completed for Tuesday

• Definitely

• Probably

• I hope so

• I don't know