Biomechanics Quiz

Which of the below is a scalar quantity of linear motion?

• Velocity

• Weight

• Impulse

• Speed

What is the net impulse of a 100m sprinter 50m into the race?

• Positive

• Neutral

• Negative

Newton's third law is..

• the law of acceleration

• the law of motion

• the law of reaction

• the law of inertia

Which of the below is an accurate application of how a gymnast can increase stability?

• Stand tall before performing a spin

• Land a leap on one foot

• Keeping the middle of their body over the centre of the beam

• Not putting chalk on their feet

Which of the below forces does not act in the vertical component?

• Muscular action force

• Friction

• Reaction force

• Weight

On a free body diagram, what does the arrow above (not touching) the body indicate?

• Direction of motion

• Friction

• Air resistance

• Reaction force

Which of the below is an example of a first class lever?

• Elbow flexion

• Knee flexion

• Elbow extension

• Ankle plantarflexion

Which of the below accurately describes mechanical advantage?

• the resistance arm is longer than the force arm.

• the load arm is longer than the resistance arm.

• the load arm is longer than the effort arm.

• the force arm is longer than the resistance arm.

Which of the below correctly describes the relationship between mobility & stability?

• Both increase at the same time

• Both decrease at the same time

• They are inversely proportional

• There is no relationship between them

Which of the below would be the correct description for a vector diagram for long jump?

• Small horizontal arrow, Large vertical arrow

• Large horizonal arrow, Small vertical arrow

• Small horizontal arrow, Large vertical arrow, Resultant arrow

• Large horizontal arrow, Small vertical arrow, Resultant arrow