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