Test 1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| What is biomechanics? | application of mechanical principles in the study of living organisms.
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| Mechanics= | analysis of the action of force.
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| What are the sub branches of biomechanics? | statics, dynamics, kinematics, and kinetics.
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| What is statics? | study of systems in constant motion, (including zero motion).
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| What is dynamics? | study of systems subject to acceleration.
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| What is kinematics? | study of the appearance or description of motion.
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| What is kinetics? | study of the actions of forces.
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| What is kinesiology? | the study of human movement.
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| What is sports medicine? | an umbrella term that encompasses both clinical and scientific aspects of exercise and sport.
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| What is qualitative? | pertaining to quality (without the use of numbers).
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| What is quantitative? | involving numbers.
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| Superior is what? | closer to the head.
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| Inferior is what? | farther away from the head.
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| Anterior is what? | toward the front of the body.
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| Posterior is what? | toward the back of the body.
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| Medial is what? | toward the midline of the body.
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| Lateral is what? | away from the midline of the body.
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| Proximal is what? | closer to the trunk.
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| Distal is what? | away from the trunk.
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| Superficial is what? | toward the surface of the body.
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| Deep is what? | inside the body away from the surface.
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| Sagittal plane is what? | in which forward and backward movements occur.
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| Frontal plane is what? | in which lateral movements occur.
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| Transverse plane is what? | in which rotational movements occur.
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| Sagittal= | left and right.
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| Frontal= | front and back.
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| Transverse= | top and bottom.
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| Movements that occur in the sagittal plane? | flexion and extension.
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| Movements that occur in the frontal plane? | adduction and abduction.
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| Movements that occur in the transverse plane? | external and internal rotation.
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| What is the mediolateral axis? | around which rotations in the sagittal plane occur.
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| What is the anteroposterior axis? | around which rotations in the frontal plane occur.
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| What is the longitudinal axis? | around which rotational movements occur.
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| What are the forms of motion? | linear, rectilinear, curvilinear, angular, and general.
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| Linear motion is what? | motion along a line.
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| Rectilinear motion is what? | motion along a straight line.
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| Curvilinear motion is what? | motion along a curved line.
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| Angular motion is what? | rotation around an axis.
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| General motion is what? | a combination of linear and angular motion (includes most human motion).
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| What is a mechanical system? | a body or portion of a body that is deliberately chosen by the analyst.
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| What is spatial reference systems useful for? | standardizing descriptions of human motion.
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| The coordinate grid is most commonly called what? | Cartesian coordinate system.
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| When doing a video you should plan for what? | performer attire, lighting conditions, background, and use of video.
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| Mass is represented by what? | m
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| Force is represented by what? | F
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| Acceleration is represented by what? | a
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| What is mass? | quantity of matter composing a body.
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| What is units of mass? | kg
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| What is acceleration? | a change in motion.
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| F= | ma
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| a= | F/m
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| What are the units of acceleration? | m/s2
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| What is force? | a push or a pull.
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| What is the units for force? | Newtons (N)
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| What is a vector? | a vector is a visual representation of a force (typically using an arrow).
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| What is a net force? | the single resultant force delivered from the vector composition of all the acting forces.
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| What is inertia? | the tendency to resist change in state of motion.
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| What are the units for inertia? | there are none!
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| What is momentum? | a quantity of motion.
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| M= | mv
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| The bigger the object the more? | inertia it has.
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| The bigger the object the more? | momentum it has.
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| What is torque? | the rotary effect of a force.
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| T= | Fd(perpendicular)
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| What is the center of gravity? | point around which a body's weight is equally balanced in all directions.
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| What is weight? | attractive force that the earth exerts on a body.
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| wt.= | ma(gravity)
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| What is gravity? | -9.8m/s2
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| What is the units of weight? | N
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| What is pressure? | force per unit of area over which the force acts.
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| What are the units for pressure? | N/m2
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| What is stress? | force per unit of area over which the force acts.
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| Pressure is usually used to describe force within distribution within what? | a fluid.
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| Stress is usually used to describe force distribution within what? | a solid.
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| What are the units for stress? | N/m2
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| What is volume? | space occupied by a body.
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| What are the three dimensions of volume? | width, height, and depth.
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| What are the units for volume? | m3 and cm3
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| What is density? | mass per unit of volume.
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| How is density represented? | rho (p).
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| What are the units of density? | kg/m3
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| How much matter is in a certain object compared to its size is what? | density.
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| What is specific weight? | weight per unit of volume.
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| p= | m/vol
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| y= | F/vol
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| Specific weight is represented by what? | gamma (y).
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| What are the units for specific weight? | N/m3
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| What is impulse? | the product of force and the time over which the force acts.
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| What are the units of an impulse? | Ns
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| What are the types of stress? | compression, tension, shear, bending, torsion, deformation, and repetitive and acute loading.
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| What is compression? | pressing or squeezing force directed axially through a body.
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| What is tension? | pulling or stretching force directed axially through a body.
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| What is shear? | force directed parallel to a surface.
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| What is bending? | asymmetric loading that produces tension on one side of a body's longitudinal axis and compression on the other side.
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| What is torsion? | load producing twisting of a body around its longitudinal axis.
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| What is deformation? | change in shape.
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| What is vector composition? | process of determining a single vector from two or more vectors by vector addition.
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| A vector is what? | it has a direction and a magnitude usually represented by the length of the arrow.
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| Vector resolution is what? | operation that replaces a single vector with two perpendicular vectors such that the vector composition of the two perpendicular vector yields the original vector.
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| Prior to "boxing in your answer" after solving a problem, what should you do? | make a "common sense" check of the answer.
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| What is considered the starting point for all body segment movements? | anatomical position.
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| A girl riding a bicycle down a straight road is an example of what type of motion? | general.
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| What type of spacial reference system uses body joint centers labeled with x and y coordinates? | Cartesian coordinate system.
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| What two data bases are useful when looking up exercise science related articles? | pubmed/medline and sport discus.
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| What is measured with the units "m/s"? | velocity or speed.
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| What is inversely proportional to mass? | acceleration.
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| If a force is further from an axis than the resistance, it is said to have a(n) what? | mechanical advantage.
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| What is also called the center of mass? | center of gravity.
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| What is -9.8 m/s2? | acceleration of gravity.
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| True or False. More massive objects fall faster due to gravity? | false.
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| A person wearing a high heel shoe will apply more what to the ground vs. a tennis shoe? | stress.
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| Impulse= | Ft
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| Inertia is proportional to what? | mass.
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| When a runner steps into a deep hole, what kind of force is applied to the tibia? | bending.
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| What is the zone called when a deformed object still returns to its original shape after the load is removed? | elastic.
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| True or False. An object's deformation curve is set and does not change. | False, it may change with the rate of loading.
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| A dislocated shoulder is usually the result of what type of loading? | acute.
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| Tennis elbow is usually the result of what type of loading? | repetitive.
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| When using vectors, how do you tell which force is the greatest? | it will have the greatest length.
🗑
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| What is the units for force? | Newtons (N)
🗑
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| What is a vector? | a vector is a visual representation of a force (typically using an arrow).
🗑
|
||||
| What is a net force? | the single resultant force delivered from the vector composition of all the acting forces.
🗑
|
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| What is inertia? | the tendency to resist change in state of motion.
🗑
|
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| What are the units for inertia? | there are none!
🗑
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| What is momentum? | a quantity of motion.
🗑
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| M= | mv
🗑
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| The bigger the object the more? | inertia it has.
🗑
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| The bigger the object the more? | momentum it has.
🗑
|
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| What is torque? | the rotary effect of a force.
🗑
|
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| T= | Fd(perpendicular)
🗑
|
||||
| What is the center of gravity? | point around which a body's weight is equally balanced in all directions.
🗑
|
||||
| What is weight? | attractive force that the earth exerts on a body.
🗑
|
||||
| wt.= | ma(gravity)
🗑
|
||||
| What is gravity? | -9.8m/s2
🗑
|
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| What is the units of weight? | N
🗑
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| What is pressure? | force per unit of area over which the force acts.
🗑
|
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| What are the units for pressure? | N/m2
🗑
|
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| What is stress? | force per unit of area over which the force acts.
🗑
|
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| Pressure is usually used to describe force within distribution within what? | a fluid.
🗑
|
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| Stress is usually used to describe force distribution within what? | a solid.
🗑
|
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| What are the units for stress? | N/m2
🗑
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| What is volume? | space occupied by a body.
🗑
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| What are the three dimensions of volume? | width, height, and depth.
🗑
|
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| What are the units for volume? | m3 and cm3
🗑
|
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| What is density? | mass per unit of volume.
🗑
|
||||
| How is density represented? | rho (p).
🗑
|
||||
| What are the units of density? | kg/m3
🗑
|
||||
| How much matter is in a certain object compared to its size is what? | density.
🗑
|
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| What is specific weight? | weight per unit of volume.
🗑
|
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| p= | m/vol
🗑
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| y= | F/vol
🗑
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| Specific weight is represented by what? | gamma (y).
🗑
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| What are the units for specific weight? | N/m3
🗑
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| What is impulse? | the product of force and the time over which the force acts.
🗑
|
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| What are the units of an impulse? | Ns
🗑
|
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| What are the types of stress? | compression, tension, shear, bending, torsion, deformation, and repetitive and acute loading.
🗑
|
||||
| What is compression? | pressing or squeezing force directed axially through a body.
🗑
|
||||
| What is tension? | pulling or stretching force directed axially through a body.
🗑
|
||||
| What is shear? | force directed parallel to a surface.
🗑
|
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| What is bending? | asymmetric loading that produces tension on one side of a body's longitudinal axis and compression on the other side.
🗑
|
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| What is torsion? | load producing twisting of a body around its longitudinal axis.
🗑
|
||||
| What is deformation? | change in shape.
🗑
|
||||
| What is vector composition? | process of determining a single vector from two or more vectors by vector addition.
🗑
|
||||
| A vector is what? | it has a direction and a magnitude usually represented by the length of the arrow.
🗑
|
||||
| Vector resolution is what? | operation that replaces a single vector with two perpendicular vectors such that the vector composition of the two perpendicular vector yields the original vector.
🗑
|
||||
| Prior to "boxing in your answer" after solving a problem, what should you do? | make a "common sense" check of the answer.
🗑
|
||||
| What is considered the starting point for all body segment movements? | anatomical position.
🗑
|
||||
| A girl riding a bicycle down a straight road is an example of what type of motion? | general.
🗑
|
||||
| What type of spacial reference system uses body joint centers labeled with x and y coordinates? | Cartesian coordinate system.
🗑
|
||||
| What two data bases are useful when looking up exercise science related articles? | pubmed/medline and sport discus.
🗑
|
||||
| What is measured with the units "m/s"? | velocity or speed.
🗑
|
||||
| What is inversely proportional to mass? | acceleration.
🗑
|
||||
| If a force is further from an axis than the resistance, it is said to have a(n) what? | mechanical advantage.
🗑
|
||||
| What is also called the center of mass? | center of gravity.
🗑
|
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| What is -9.8 m/s2? | acceleration of gravity.
🗑
|
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| True or False. More massive objects fall faster due to gravity? | false.
🗑
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| A person wearing a high heel shoe will apply more what to the ground vs. a tennis shoe? | stress.
🗑
|
||||
| Impulse= | Ft
🗑
|
||||
| Inertia is proportional to what? | mass.
🗑
|
||||
| When a runner steps into a deep hole, what kind of force is applied to the tibia? | bending.
🗑
|
||||
| What is the zone called when a deformed object still returns to its original shape after the load is removed? | elastic.
🗑
|
||||
| True or False. An object's deformation curve is set and does not change. | False, it may change with the rate of loading.
🗑
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| A dislocated shoulder is usually the result of what type of loading? | acute.
🗑
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| Tennis elbow is usually the result of what type of loading? | repetitive.
🗑
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| When using vectors, how do you tell which force is the greatest? | it will have the greatest length.
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| Biomechanics is heavily used to treat and prevent sports-related injuries. True or False. | True.
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| Space flight has special problems with it. After a long space flight what would you start to loose? | bone mass, muscle mass, and cardiovascular performance.
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| This the branch of mechanics dealing with systems in a constant state of motion (could be at rest=no motion) | statics.
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| What is the branch of mechanics dealing with systems subject to acceleration? | dynamics.
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| This is a measurement term and is related to the dimensions and weights of body segments | anthrometrics.
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| Most human motion is what? | general.
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| What is an example of angular motion? | merry-go-round.
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| What is an example of linear motion? | slide tackling someone on the soccer field but the player ins't slide tackling from an angle so just straight on, in a straight line.
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| During all human angular motion, the axis or rotation is always through the body of the athlete. True or False. | False.
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