WorksheetsLevers
Total questions: 18
Worksheet time: 9mins
What is the primary function of levers in the human body according to the text?
To decrease force and speed
To increase force and/or speed
To support body weight only
To connect different body parts
Which of the following is NOT a component of a lever as described in the text?
Force
Axis or fulcrum
Resistance
Energy
How do some sports utilize levers to enhance performance?
By using equipment to reduce force
By using equipment as extended levers to generate greater force and higher ball velocity
By using equipment to decrease speed
By using equipment to balance the player
What is the correct description of a first class lever?
Axis is in the middle, with resistance and force on either side.
Resistance is in the middle, with axis and force on either side.
Force is in the middle, with axis and resistance on either side.
Force and resistance are at one end, with the axis at the other.
In a second class lever, where is the resistance located?
At one end, with force at the other end.
In the middle, with axis and force on either side.
At the axis, with force at one end.
In the middle, with force at both ends.
Which statement best describes a third class lever?
The axis is at one end, with force applied in the middle.
The resistance is at one end, with the axis in the middle.
The force is applied in the middle, with the axis at one end.
The force and resistance are at opposite ends, with the axis in the middle.
In a first class lever, where is the axis located in relation to the force and the resistance?
The axis is between the force and the resistance.
The axis is at one end, with the force and resistance on the same side.
The axis is outside the lever system.
The axis and the force are at opposite ends with resistance in the middle.
What is a characteristic feature of second class levers?
The resistance is between the axis and the force.
The force is applied at the end opposite to the resistance.
The axis is located at the end, with force applied in the middle.
The force and resistance are at the same point.
Which of the following is an example of a second class lever action in the human body?
Nodding head forward and back.
Jumping upwards during a layup in basketball.
Down phase of a sit up.
Raising your head to header a football.
What does the mnemonic "ARF" stand for in the context of second class levers?
A Real Function
A Rapid Force
A Real Fight
Axis Resistance Force
What is positioned between the axis and the resistance in third class levers?
Force
Speed
Energy
Weight
In the context of third class levers, what does "AFR" stand for?
Axis, Force, Resistance
Acceleration, Function, Reaction
Action, Flexibility, Response
Agility, Force, Range
Which part of the body serves as the axis in an AFL kick according to the example provided?
Knee
Hip joint
Ankle
Shoulder
What is amplified by the human body being mostly composed of third class levers?
Strength
Speed
Accuracy
Endurance
What advantage do third class levers provide in terms of motion?
Limited range
Decreased speed
Increased power
Functional advantage
What is the effect of the position of a point on a lever on its velocity?
The closer a point is to the axis, the greater its velocity.
The velocity is unaffected by the position of the point on the lever.
The further a point is from the axis, the greater its velocity.
The velocity decreases as the point moves away from the axis.
Why should a baseball batter grip the bat at the end and straighten elbows?
To decrease the length of the lever and reduce speed.
To make the lever as long as possible for increased speed.
To balance the bat more effectively.
To increase the weight of the bat.
What should an AFL footballer do to maximize distance when kicking a ball?
Keep the leg slightly bent at impact.
Shorten the lever action by bending the leg.
Fully extend the leg at impact.
Decrease the lever length for better control.
