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