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