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