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