Quiz: Body Planes, Axes, Force & Gravity There was an error trying to submit your form. Please try again. Two equal forces act on the same point of an object but in exactly opposite directions. What is the result? * The object reaches a state of equilibrium and does not move The object rotates around a central axis The resultant force equals the sum of both forces The object accelerates in the direction of the larger force This field is required. When two forces act at different points on an object in opposite directions, what type of motion is produced? * Equilibrium — the object remains stationary Rotation / torque Acceleration in the direction of the smaller force Linear translation in the direction of the greater force This field is required. Where does the sagittal axis (transverse axis) run in relation to the body? * Horizontally from side to side Diagonally from shoulder to hip Vertically from head to toe Horizontally from front to back, perpendicular to the frontal plane This field is required. Where is the center of gravity (CoG) located in the human body? * At the level of the second sacral vertebra (S2) At the level of the fifth lumbar vertebra (L5) At the level of the navel (umbilicus) At the level of the first sacral vertebra (S1) This field is required. The frontal (coronal) plane divides the body into which two portions? * Right and left halves Front (anterior) and back (posterior) portions Medial and lateral portions Upper and lower halves This field is required. Elbow flexion and extension (e.g., a bicep curl) occur in which plane and around which axis? * Sagittal plane / Frontal axis Transverse plane / Vertical axis Frontal plane / Vertical axis Frontal plane / Sagittal axis This field is required. Which of the following best describes an in human body movement? The base of support for the body during standing The midline dividing the body into equal halves An imaginary flat surface on which movement occurs An imaginary line about which movement occurs Shoulder abduction and adduction are examples of movements that occur in which plane? * Sagittal plane Frontal plane Horizontal plane Transverse plane This field is required. Which of the following is an example where muscular force equals the force of gravity, resulting in a stable, stationary position? * Holding a dumbbell still during isometric contraction A ball sinking to the bottom of a pool Bending the spine laterally to one side Rising up onto the toes using calf muscles This field is required. In biomechanics, what does the of a force refer to? The type of muscle contraction producing the force The number of joints involved in the movement The direction in which the force is applied How much force is applied, represented by the length of an arrow Back Next Submit Quiz There was an error trying to submit your form. Please try again.
