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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. Speed and velocity
Major components in many sports
Speed
Gravitational potential energy
Energy
2. Occurs when an object moves in a positive direction but is slowing down
Static
Eccentric phase
Negative acceleration
Forces
3. 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
Power
Potential energy
Elastic collisions
Law of acceleration
4. The product of force and the amount of displacement in the direction of that force
Work
Time
Biomechanics
Impulse
5. The muscle elongates is an example of negative work
Static
Contact forces
Eccentric phase
Impulse
6. Done by a force acting on an object if the object is displaced in the same direction as the force
Strain energy
External forces
Mechanics
Positive work
7. 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.
Angular motion
Two types of linear motion
Positive acceleration
Displacement
8. Energy due to deformation
External forces
Non - contact forces
Internal forces
Strain energy
9. Location in space in relation to a fix point
Position
Weight
Static
Velocity
10. Accelerate our bodies
Mass
Average velocity
Dynamic
Momentum
11. The branch of dynamics concerned with the forces that cause or tend to cause motion
Average speed
Kinetic energy
Kinetics
Coefficient of restitution
12. Mechanics of objects at rest of moving at a constant velocity.
Static
Major components in many sports
Law of acceleration
Angular motion
13. Are forces that occur between objects in contact with each other i.e. air and water.
Internal forces
Speed
Negative work
Contact forces
14. The rate of doing work
referred to as translation
Curvilinear translation
Time
Power
15. A measure of the length of a path followed by an object
Negative work
Kinetics
Power
Distance traveled
16. The capacity to do work
Kinematics
Coefficient of restitution
Energy
Potential energy
17. Measure of the force of gravity acting on an object. Changes with location.
International System of Units
Power
Static
Weight
18. Linear motion
Occurs when all points on a body or object move the same distance - in the same direction at the same time
Law of action - reaction
Elastic collisions
Eccentric phase
19. A push or a pull. They cause objects to start - stop - speed up - slow down or change direction. (N)
Momentum
Rectilinear translation
Forces
Speed
20. The study of forces and their effects on living systems.
Static
Normal contact forces
Biomechanics
Friction forces
21. When an object speeds up - slows down - starts - stops or changes direction. Can be positive or negative
Positive work
Acceleration
Two types of linear motion
Inelastic collisions
22. Energy due to position
Internal forces
Potential energy
Eccentric phase
Gravitational potential energy
23. The product of forece multiplied by the time that force acts
Impulse
Velocity
Curvilinear translation
Normal contact forces
24. Distance traveled/time
Average speed
Vector
Eccentric phase
Velocity
25. Rate of motion in a specific direction
Work
International System of Units
Velocity
Inelastic collisions
26. The science concerned with the effects of forces acting on objects.
Inertia
Average velocity
Law of acceleration
Mechanics
27. 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.
Biomechanics
Mechanics
Curvilinear translation
Internal forces
28. 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
Contact forces
Law of Inertia
Momentum
Dynamic
29. A change in position that results from a combination of both linear and angular motion. Most movement is general is nature
Time
General motion
Internal forces
Angular motion
30. The branch of dynamics concerned with the description of motion (linear - angular and general motion).
Static
Dynamic
Kinematics
Strain energy
31. To every action there is always opposed an equal reaction
Friction forces
Impulse
Dynamic
Law of action - reaction
32. Are forces that act on an object as a result of interaction with the environment surrounding it. Either non - contact or contact forces.
Major components in many sports
External forces
Energy
Internal forces
33. Duration of an event - SI unit if seconds - minutes - hours and days all based on s.
Time
Inertia
Kinetics
Eccentric phase
34. Defined as the absolute value of the ratio of the velocity of separation of velocity of approach
Coefficient of restitution
Concentric contraction
Work
Two types of linear motion
35. Measure of inertia; the quantity of matter in an object. Does not change with location.
Time
Kinetics
Power
Mass
36. The objects stay together and move with the same velocity after impact (full back and linebacker)
Elastic collisions
International System of Units
Inelastic collisions
Work
37. Rate of motion of an object
Rectilinear translation
Positive work
Positive acceleration
Speed
38. Mechanics of objects in accelerated motion.
Contact forces
Occurs when all points on a body or object move the same distance - in the same direction at the same time
Dynamic
Power
39. Energy due to motion
Impulse
Kinetic energy
External forces
Angular motion
40. The branch of dynamics concerned with the forces that cause or tend to cause motion (external forces - Newton's laws).
Displacement
Kinetics
Negative acceleration
Internal forces
41. The shortening phase of the muscle in an isotonic lift is an example of positive work
Momentum
Law of Inertia
International System of Units
Concentric contraction
42. Rectilinear translation and Curvilinear translation
Displacement
Time
Two types of linear motion
Negative acceleration
43. The action or process of change in position - in which two things are necessary.
Internal forces
Displacement
Law of acceleration
Motion
44. Force that occur even if the objects are not touching i.e. gravity or magnetic.
Positive work
Non - contact forces
Curvilinear translation
Kinematics
45. SI units are the most commonly accepted units of measure based on the metric system.
International System of Units
Average speed
Impulse
Mechanics
46. Is a mathematical representation of anything that is defined by its size or magnitude (a number) and its direction (its orientation).
Vector
Contact forces
Mass
Internal forces
47. All of the momentum of one object is transferred to the other (two pennies example)
Elastic collisions
Potential energy
Speed
Kinetic energy
48. 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.
Contact forces
Friction forces
Dynamic
Speed
49. Speeding up in a positive direction
Friction forces
Displacement
Length
Positive acceleration
50. The property of an object to resist changes in its motion.
Work
Inertia
Average velocity
Kinetic energy