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