Week 6

In a lever system, what constitutes the 'resistance point'?

Which of the following best describes the 'force arm' of a lever?

How are the three classes of levers distinguished from each other?

In a first-class lever, where is the fulcrum located?

Which of the following is an example of a second-class lever?

What is a key characteristic of third-class levers in the human body?

What does the mechanical advantage of a lever represent?

When does a lever favor the application of force at the expense of speed?

Which of the following actions would be considered a violation of academic integrity during an exam, based on the provided guidelines?

A student feels unwell on the day of an exam. What is the correct procedure they should follow, according to the provided guidelines?

Why is understanding biomechanical principles important for analyzing human movement?

In a lever system, how is the mechanical advantage defined?

Which of Newton's Laws of Motion is most relevant to understanding momentum?

What distinguishes running from walking in terms of the human gait cycle?

How does altering body position affect the center of gravity?

Which of the following best describes the relationship between work and power?

A weightlifter exerts a force of 1500 N to lift a barbell a distance of 2 meters. How much work has the weightlifter done?

An athlete performs 1200 Joules of work in 4 seconds. What is the power output of the athlete?

During which phase of running is there a period when neither foot is in contact with the ground?

Which of the following is true regarding ground contact during running compared to walking?

What two factors determine running speed?

Which of the following factors most significantly influences stride length?

Besides speed of muscle contraction, what primarily influences leg speed (frequency) in running?

As running speed increases, how does foot contact typically change?

Which application of biomechanical analyses would be MOST relevant to improving the comfort and efficiency of office workstations?

A coach is observing an athlete's running form to identify areas for improvement without using any measurement tools. This type of analysis is BEST described as:

If a weightlifter applies a force of 2000 N to a barbell over an area of 0.1 $m^2$, what is the pressure exerted on the barbell?

In biomechanics, which of the following forces is MOST likely involved in a fracture resulting from a twisting injury?

Which of the following scenarios BEST exemplifies the concept of 'tension' in biomechanical terms?

During a bicep curl, the elbow joint acts as the fulcrum. Where do the force and resistance act in this lever system?

Which of the following activities relies MOST heavily on understanding the biomechanics of levers to maximize performance?

Considering the relationship between force, mass, and acceleration, how would you describe mechanical stress?

A lever system has a force arm of 2 meters and a resistance arm of 4 meters. What is the mechanical advantage (MA) of this lever?

In a lever system, if applying a force of 100 N results in lifting an object weighing 300 N, what type of lever is most likely in use and what is its approximate mechanical advantage?

Which of the following statements accurately describes a characteristic of a third-class lever?

The force arm of a lever is 0.5 meters and the applied force is 50 N. What is the torque produced?

Why is determining the center of gravity (CG) useful in biomechanics?

In biomechanics, what does the 'moment arm' specifically refer to when calculating torque?

When using the reaction board method to determine the center of gravity, what does the formula Y = F2L/M calculate?

According to the principles of balance and stability, what happens when the center of gravity (CG) passes outside the base of support?

Which of the following scenarios would result in a shift of a person's center of gravity (CG)?

If a person's center of gravity (CG) is located 2 cm anterior to their second sacral vertebra in anatomical position, and they then raise both arms overhead, what is the likely effect on their CG?

Which of the following adjustments would most likely reduce the likelihood of losing balance when carrying a heavy object?

How does increasing the size of the base of support contribute to stability?

Why is the location of the center of gravity (CG) important in the context of human movement and stability?

Which of these actions will NOT increase stability?

How does horizontally positioning the CG near the edge of the base of support towards an oncoming external force enhance stability?

Why is vertically positioning the center of gravity (CG) as low as possible beneficial for stability?