Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

KIN245 > Test 2- Part 2: Laws of Motion > Flashcards

Test 2- Part 2: Laws of Motion Flashcards

1
Q

What are the two types of motion?

A

Linear motion

Angular motion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Motion cannot occur w/ out what?

A

Force (muscular system)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is linear motion aka?

A

Translatory motion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Distance that a system moves in a straight line

A

Linear displacement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the two types of linear motion/.

A

Rectilinear motion

Curvilinear motion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Motion along a straight line

A

Rectilinear motion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Motion along a line

A

Linear motion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Motion along a curved line

A

Curvilinear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Rotation around an axis

A

Angular (rotary motion)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Where in the body are the axis of rotation provided by?

A

Joints

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

_________ motion of joints produces the _______ motion of walking

A

Angular

Linear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Change in position or location of an object from its original point of reference

A

Displacement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Actual sum length it is measured to have traveled

A

Distance (path of movement)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Change in location of a rotating body

A

Angular displacement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Distance that a system moves in a straight line

A

Linear displacement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

How fast an object is moving, or distance that an object moves in a specific amount of time

A

Speed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Rate at which an object changes position. Includes the direction & describes the rate of displacement

A

Velocity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Explain the law of inertia

A

A body in motion tends to remain in motion at the same speed in a straight line unless acted on by a force; a body at rest tends to remain at rest unless acted on by a force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Resistance to action or change (acceleration/deceleration)

A

Inertia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

How do muscles produce force?

A 
Stop motion
Start motion
Accelerate motion
Decelerate motion
Change direction of motion
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The greater an objects mass, the greater the __________

A

Inertia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

More mass=

A

More force needed to significantly change an object’s inertia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Any activity carried out at a steady pace in a constant direction will ___________ energy

A

Conserve (endurance runners)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Explain the law of acceleration

A

A change in the acceleration of a body occurs in the same direction as the force that caused it.
The change in acceleration is directly proportional to the
force causing it and inversely proportional to the mass of the body.

25
Q

The rate of change in velocity

A

Acceleration

26
Q

The amount of matter in the body

A

Mass

27
Q

Explain the law of reaction

A

For every action there is an opposite reaction

28
Q

Force on the surface reaction to the force we place on it

A

Ground reaction force

29
Q

We provide the _______ force while the surface provides the _______ force

A

Action

Reaction

30
Q

Force that results from the resistance between surfaces of two objects from moving upon one another

A

Friction

31
Q

On slick (wet) ground our shoe friction is ________ & we are more likely to slip

A

Reduced

32
Q

The amount of friction between two objects that have not yet begun to move

A

Static friction

33
Q

Friction occurring between two objects that are sliding upon one another

A

Kinetic friction

34
Q

_______ friction is always greater than ________ friction

A

Static

Kinetic

35
Q

How might you increase static friction?

A

Increasing the normal or perpendicular forces pressing the two objects together such as in adding more weight to one object sitting on the other object

36
Q

Ration of force needed to overcome the friction over the force holding the surfaces together

A

Coefficient of friction

37
Q

Resistance to an object rolling across a surface such as a ball rolling across a court or a tire rolling across a ground

A

Rolling friction

38
Q

The ability to control equilibrium (either static or dynamic)

A

Balance

39
Q

State of zero acceleration where there is no change in the speed or direction of the body, maybe either static or dynamic

A

Equilibrium

40
Q

Body is at rest or completely motionless

A

Static equilibrium

41
Q

All applied & inertial forces acting on the moving body are in balance, resulting in movement with unchanging speed or direction

A

Dynamic equilibrium

42
Q

To control equilibrium & achieve balance, ________ needs to be _________

A

Stability

Maximized

43
Q

Change in the body’s acceleration; disturbance of the body’s equilibrium

A

Stability

44
Q

Point at which all of the body’s mass & weight are equally balanced or equally distributed in all directions

A

Center of gravity

45
Q

How is stability enhanced?

A

Finding body’s center of gravity & appropriately changing it

46
Q

A person has balance when the _____ falls within _______

A

Center of gravity

Base of support

47
Q

A person has balance in the direct proportion to the _______

A

Size of the base

48
Q

The ________ a base of support, the ______ balance

A

Larger

More

49
Q

A person has balance depending on the _____

A

weight (mass)

50
Q

The more _______, the _____ balance

A

Greater

More

51
Q

A person has balance, depending on the _______ of the center of gravity

A

Height

52
Q

The ________ the center of gravity, the ______ balance

A

Lower

More

53
Q

A person has balance, depending on where the __________ is in relation to the ____________

A

Center of gravity

Base of support

54
Q

Balance is less if the center of gravity is near the _______ of the base

A

Edge

55
Q

In anticipation of an oncoming force, stability may be _________ by enlarging the size of the base of support in the direction of the anticipated force

A

Increased

56
Q

__________ may be enhanced by _________ the friction between the body & the surfaces it contacts

A

Equilibrium

Increasing

57
Q

________ about an axis aids balance

A

Rotation (moving bike is easier to balance than a stationary bike)

58
Q

_________ _______ functions contribute to balance

A

Kinesthetic physiological (sight, touch, sense)

KIN245 (14 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions