Kinematics and Kinetics in Human Movement Practice Test

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• What is the effect of rearranging body segments on the body's center of mass?
• What is shear in terms of forces?
• Which guidance would help a person push a door with less effort?
• Which is an example of a first-class lever?
• Where is the CoM of a symmetrical, rigid object?
• Which statement defines torque?
• Head rotation occurs primarily in which plane around which axis?
• Which lever type has MA always less than one?
• Eccentric muscle action is defined as:
• In equilibrium, which condition must hold?
• Rotary displacement is typically measured in degrees with which instrument?
• Which is an example of a second-class lever?
• What is the line of gravity (LoG)?
• The five kinematic variables describing displacement?
• What factors determine a body's moment of inertia?
• Which term describes forces that pull joint surfaces apart?
• Speed is defined as what?
• Which statement best describes the behavior of a fixed axis during rotation?
• What is inertia?
• What is kinetics?
• What is the most common type of motion in humans?
• The extension of the head at the atlanto-occipital region illustrates which lever class?
• What is the minimum requirement to produce rotation in a rigid body?
• Which statement describes how torque depends on force, lever arm, and angle?
• Which of the following is NOT a type of motion?
• Give an example of an anatomic pulley.
• In an open-chain exercise, which is true?
• What happens to the CoM if weight is added or subtracted from the body?
• Which statement identifies an external force acting on a body segment in rehabilitation contexts?
• Which statement describes how a pulley affects torque for a given muscle force?
• Which term is the area enclosed by the body's contact points with the supporting surface?
• What does Newton's second law state?
• Translatory displacement is typically measured in units of length such as?
• What is the resultant force?
• How is the resultant determined in a concurrent system?
• Which statement correctly describes the relationship between moment arm length and torque when force is held constant?
• Which statement about open-chain movements is true?
• What is the center of gravity (CoG)?
• In a linear force system, what is true about the forces?
• Which is an example of a third-class lever?
• If Force increases by 50% and Moment Arm decreases by 50%, the torque will
• Which contraction occurs when the muscle is the effort vs resistance force?
• If body segments are rearranged, what happens to the combined body center of mass and line of gravity?
• Which statement best describes concentric muscle action?
• Translatory motion is best exemplified by which of the following?
• Which term refers to the apparent center/axis at a single instant during curvilinear motion?
• Torsion is defined as which type of load?
• Which statement correctly describes Newton's second law in relation to acceleration?
• Holding force constant, what happens to torque if the moment arm is increased?
• What role does gravity play as an external force?
• Which lever class has the fulcrum between the effort and the load?
• Which description correctly defines the first-class lever?
• How do gravitational vectors act on a body?
• Which statement best illustrates Newton's third law in physical therapy?
• Open-chain vs closed-chain activity is best described by which statement?
• Which lever type has a constant mechanical advantage greater than one?
• Which kinematic variable describes how quickly position changes?
• Which statement best describes the effect of anatomic pulleys on muscle force?
• If a force tends to slide one segment relative to another, what term describes it?
• Rotary motion is best exemplified by which movement?
• In open-chain movements, which statement is true?
• Rotary motion in the human body is best illustrated by which example?
• Which statement about the sagittal plane is true?
• Which of the following are cardinal planes in human movement?
• General motion is best described as?
• Which of the following is an internal force acting on a body segment?
• What is the difference between muscle strength and muscle power?
• Which statement about displacement is true?
• Which term is the point through which the gravitational force acts, near Earth treated as equivalent to the center of mass?
• Which statement describes the difference between the center of rotation (CoR) and the instantaneous center of rotation (ICoR)?
• Which description matches a second-class lever?
• What term describes two forces that act together to create rotation?
• Carrying all books in one arm shifts the center of mass and line of gravity toward which side?
• Which statement best describes open-chain movements?
• Which statement correctly describes a second-class lever?
• What is bending in terms of forces?
• Which is an example of an open-chain exercise?
• In kinematics, magnitude refers to what?
• In a closed-chain movement, what is typically true about the ends of the limb?
• Which is an example of Newton's first law in physical therapy?
• Which statement best describes the sum of forces when multiple forces act on an object?
• Which option is NOT part of the five kinematic variables describing displacement?
• What is moment of inertia?
• What is the moment arm?
• Translatory motion in the human body is best illustrated by which of the following?
• An anatomic pulley affects muscle torque by:
• To minimize torque when moving a limb, how should you position it?
• If you double the net force while keeping mass constant, what happens to acceleration?
• Isometric muscle action is defined as:
• Which statement describes closed-chain activity?
• Which term denotes the area bounded by the points where the body touches a supporting surface?
• What best describes anatomic pulleys?
• The standing heel raise is an example of which lever class?
• What happens to the CoM if body segments are altered in position?
• Which component is most directly affected by increasing the moment arm via an anatomic pulley?
• In biomechanical terms, a pulley in the musculotendon system primarily serves to:
• To maximize torque, how should the limb be positioned relative to gravity?
• What is the center of rotation (CoR)?
• Which characteristics are associated with a force vector?
• Torque produced at a joint is named according to which criterion?
• Which statement correctly defines force and its SI unit?
• What is an anatomic pulley?
• Which lever type has the axis between effort and resistance?
• Moment arm is defined as what in biomechanics?
• When a rigid object is moved, what happens to its center of mass and line of gravity?
• Which term is the vertical gravitational vector extending downward from the center of mass toward the center of the Earth?
• Which statement correctly describes a third-class lever?
• What does Newton's first law state?
• What is distraction/tension in terms of forces?
• What is the instantaneous center of rotation (ICoR)?
• Which statement correctly describes contact forces, shear forces, and friction?
• Which of the following lists the three types of motion described?
• In a concurrent force system, what is true about the lines of action?
• Which arrangement is the first-class lever?
• What is a linear force system?
• Which describes a force couple?
• What are the components of a vector?
• If body segments are rearranged, what happens to the body's center of mass?
• When weight shifts toward a heavier segment, what happens to the center of mass?
• Increasing mass while applying the same net force results in what change in acceleration?
• What is the formula for torque?
• What does Newton's third law state?
• What is the memory trick for lever classes?
• How is force measured?
• For stability, where must the line of gravity fall?
• Which statement reflects Newton's third law?
• How does moment arm length affect torque for a given force?
• What is the difference between external and internal forces?
• Which of the following can alter the net torque on a limb segment?
• Which statement describes Newton's second law?
• What is the center of mass (CoM)?
• What is kinematics?
• In typical human movement, most segments exhibit which combination of motion?
• Which term describes the balance point of an object where mass can be considered concentrated?
• The five kinematic variables include rate of displacement (velocity and acceleration). Which statement describes this?
• Which statement best describes the line of gravity relative to the center of mass?
• In a physical therapy context, increasing resistance to limb movement will require what for the same acceleration?
• If the moment arm length doubles while the applied force remains constant, what happens to the torque?
• What is a concurrent force system?
• Which statement correctly defines a first-class lever?
• How do you combine forces in a concurrent system?
• How do anatomical pulleys affect muscle force?
• What are the five kinematic variables?
• How does the magnitude of force affect torque?
• The torque at a joint is minimized when the line of gravity passes through the joint axis.
• How is inertia related to mass?
• Increasing the moment arm generally results in what for a given muscle force?
• What is general motion in human movement?
• Which statement best defines kinetics?
• What types of forces can a joint sustain?
• How do you combine forces in a linear system?
• Which statement correctly describes torque in rotational motion?
• Which describes a closed-chain movement?
• Which statement best expresses Newton's first law?
• Which arrangement is the second-class lever?
• What is the function of an anatomic pulley in musculoskeletal biomechanics?
• Which description matches a third-class lever?
• If the net external force on a body is zero, what is true about its velocity?
• What is acceleration?
• How do you graphically determine the resultant of two forces intersecting at an angle?
• What is displacement?
• What is compression in terms of forces?
• Which statement best describes the difference between a fixed axis and a center of rotation in human joints?
• What factors can cause net torque on a segment to change?
• Which statement describes a pulley’s biomechanical function?
• What is statics?
• What does mechanical advantage > 1 mean?
• What is the base of support (BoS)?
• What is velocity?
• Where is the CoM of a nonsymmetrical, rigid object?
• What is dynamics?
• What is a force?
• Which option correctly matches motion type with its example?
• Concentric muscle action is defined as:
• Where is gravity's pull concentrated?
• Which arrangement is the third-class lever?