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Test your basic knowledge |
Mechanical Principles Of Human Movement
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Mechanics of objects at rest of moving at a constant velocity.
Occurs when all points on a body or object move the same distance - in the same direction at the same time
Static
Eccentric phase
Positive work
2. Energy due to position
Occurs when all points on a body or object move the same distance - in the same direction at the same time
Elastic collisions
Potential energy
Rectilinear translation
3. SI units are the most commonly accepted units of measure based on the metric system.
Two types of linear motion
Weight
Contact forces
International System of Units
4. Act parallel to the contacts and opposes motion or sliding between the surfaces i.e. the backward of the runners foot strike gives the runner horizontal motion.
Friction forces
Length
Law of action - reaction
Average velocity
5. To every action there is always opposed an equal reaction
Law of action - reaction
Occurs when all points on a body or object move the same distance - in the same direction at the same time
Inertia
Mechanics
6. Distance traveled/time
Elastic collisions
Average speed
Concentric contraction
Time
7. Used to describe a change in position - the SI unit is meters - may also see miles - yards - feet and inches.
Static
Displacement
Occurs when all points on a body or object move the same distance - in the same direction at the same time
Length
8. Rate of motion of an object
Potential energy
Speed
Concentric contraction
Acceleration
9. Are forces that act on an object as a result of interaction with the environment surrounding it. Either non - contact or contact forces.
Work
External forces
Displacement
Two types of linear motion
10. Change in position that occurs when all points on a body or object move in circular paths about the same fixed axis - also referred to as rotary motion or rotation.
Dynamic
Speed
Power
Angular motion
11. The product of forece multiplied by the time that force acts
Internal forces
Major components in many sports
Impulse
International System of Units
12. The muscle elongates is an example of negative work
Position
referred to as translation
Eccentric phase
Work
13. Energy due to motion
Curvilinear translation
Work
Momentum
Kinetic energy
14. Speeding up in a positive direction
Velocity
Positive acceleration
Biomechanics
Static
15. Linear motion that occurs when an object maintains its orientation during a movement so that all points on the object move the same distance - in the same direction - in the same time but not in straight lines.
Speed
Energy
Curvilinear translation
Dynamic
16. Accelerate our bodies
Distance traveled
Momentum
Normal contact forces
Occurs when all points on a body or object move the same distance - in the same direction at the same time
17. The distance traveled in a straight line from the starting point to the ending point
Kinetics
Displacement
Positive acceleration
Distance traveled
18. Measure of inertia; the quantity of matter in an object. Does not change with location.
Motion
Mass
Inelastic collisions
Energy
19. The shortening phase of the muscle in an isotonic lift is an example of positive work
Dynamic
Kinetics
Concentric contraction
Inelastic collisions
20. The branch of dynamics concerned with the forces that cause or tend to cause motion (external forces - Newton's laws).
Kinetics
Law of acceleration
Potential energy
Gravitational potential energy
21. The capacity to do work
Energy
Impulse
Friction forces
Contact forces
22. In reference to height - the greater the height the more gravitational potential energy
referred to as translation
Strain energy
Two types of linear motion
Gravitational potential energy
23. Duration of an event - SI unit if seconds - minutes - hours and days all based on s.
Inertia
Time
Vector
Concentric contraction
24. Displacement/time
Average velocity
Impulse
Average speed
Forces
25. A change in position that results from a combination of both linear and angular motion. Most movement is general is nature
General motion
Normal contact forces
Occurs when all points on a body or object move the same distance - in the same direction at the same time
Gravitational potential energy
26. The product of force and the amount of displacement in the direction of that force
Negative work
Length
Internal forces
Work
27. Force that occur even if the objects are not touching i.e. gravity or magnetic.
Non - contact forces
Work
Rectilinear translation
Two types of linear motion
28. Linear motion
Forces
Occurs when all points on a body or object move the same distance - in the same direction at the same time
Mechanics
Law of acceleration
29. Done by a force acting on an object if the object is displaced in the same direction as the force
Inelastic collisions
Positive work
Mass
Major components in many sports
30. The rate of doing work
Time
Power
Negative acceleration
Law of Inertia
31. Energy due to deformation
Elastic collisions
Work
Dynamic
Strain energy
32. The change of motion of an object is proportional to the force impressed; and is made in the direction of the straight line in which the force is impressed
Distance traveled
Displacement
Law of acceleration
Kinetics
33. The objects stay together and move with the same velocity after impact (full back and linebacker)
Time
Inelastic collisions
Negative work
Position
34. Linear motion that occurs when a object maintains its orientation during a movement so that all points on the object move the same distance - in the same direction - in the same time - in strain lines
Impulse
Static
Rectilinear translation
Kinetics
35. A push or a pull. They cause objects to start - stop - speed up - slow down or change direction. (N)
Law of Inertia
International System of Units
Forces
Strain energy
36. Done by a force acting on an object when the object is displaced in the direction opposite the force acting on it
Negative work
Impulse
Static
Work
37. Measure of the force of gravity acting on an object. Changes with location.
Two types of linear motion
Weight
Biomechanics
Impulse
38. The study of forces and their effects on living systems.
Eccentric phase
Rectilinear translation
External forces
Biomechanics
39. Linear motion
External forces
referred to as translation
Vector
Speed
40. Location in space in relation to a fix point
Concentric contraction
Positive work
Momentum
Position
41. When an object speeds up - slows down - starts - stops or changes direction. Can be positive or negative
Acceleration
Kinematics
Negative work
Law of acceleration
42. Rate of motion in a specific direction
Strain energy
Dynamic
Velocity
Weight
43. The property of an object to resist changes in its motion.
Inertia
Kinetics
Static
Curvilinear translation
44. Everybody continues in a state of rest or of uniform motion in a straight line - unless it is compelled to change that state by forces impressed upon it
Velocity
Law of Inertia
Work
Law of acceleration
45. The science concerned with the effects of forces acting on objects.
Mechanics
Vector
Impulse
Work
46. Forces that act within the object or system whose motion is being investigated.
Internal forces
Eccentric phase
Distance traveled
Positive acceleration
47. Speed and velocity
Gravitational potential energy
Work
Internal forces
Major components in many sports
48. Mechanics of objects in accelerated motion.
Dynamic
Negative work
External forces
Mass
49. Rectilinear translation and Curvilinear translation
Kinematics
Impulse
Two types of linear motion
Biomechanics
50. Defined as the absolute value of the ratio of the velocity of separation of velocity of approach
Internal forces
Work
Coefficient of restitution
Contact forces