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