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Finals > Glovers Final > Flashcards

Glovers Final Flashcards

1
Q

work and energy are interchangeable terms (t\f)

A

true

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2
Q

absolute zero is 0 degrees celsius (t\f)

A

false

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3
Q

electromagnetic energy can be radiated by matter and is also called radiant energy

A

false

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4
Q

electrical energy is a type of mechanical energy

A

false

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5
Q

in real life no energy transformation is 100%efficient

A

true

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6
Q

what is the SI (metric) unit of measurement for energy

A

joule

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7
Q

which is also referred toastier the “energy of position”

A

potential energy

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8
Q

which is the formula for gravitational potential energy

A

GPE = w*h

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9
Q

which type of energy is the average sum of the kinetic energies of all the particles in an object

A

thermal energy

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10
Q

which term refers to the repetitive, back and forth motion that particles in acoustic energy travel in

A

oscillation

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11
Q

which type of energy uses the electrical charges in atoms

A

electrical energy

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12
Q

which type of energy use the electromagnetic spectrum

A

thermal energy

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13
Q

which type of energy is found in the chemical bonds of compounds

A

chemical energy

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14
Q

which equation is associated with mass energy

A

E=mc2

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15
Q

when small nuclei of atoms are smashed together it is called……

A

fusion

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16
Q

which law of thermodynamics states that energy can nither be created nor destroyed only changed

A

frist law of thermodynamics

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17
Q

what type of collision occurs when 2 objects collide and rebound whit no deformation

A

elastic colloision

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18
Q

car accident is a good example of which type of collision

A

partially elastic collision

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19
Q

which type of momentum describes a system moving on a straight path

A

linear momentum

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20
Q

if two objects stick together after a collision then the collision is

A

inelastic collision

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21
Q

the operational definition of_______is the ability to do work

A

energy

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22
Q

what type of energy is “ energy of motion”

A

kinetic energy

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23
Q

list one of the differences between acoustic and thermal energy

A

acoustic- has to deal with sound

thermal- deals with heat

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24
Q

which type of energy is associated with the nucleus of an atom

A

nuclear energy

25
Q

which type of nuclear energy occurs the the nucleus of an atom is split apart

A

fission

26
Q

what is the most abundant form of of potential energy in the universe

A

mass energy

27
Q

what does the law of conservation of energy state

A

it cannot be created or destroyed but in can be changed

28
Q

what is the formula for momentum

A

p=m*v

29
Q

works measured in watts (t\f)

A

false

30
Q

power is measured in watts (t\f)

A

true

31
Q

ideal mechanical advantage is a machines advantage under perfect conditions (t\f)

A

true

32
Q

nail clippers are an example of a third class level (t\f)

A

true

33
Q

in the US, bolts are classified by their thread count(t\f)

A

true

34
Q

what occurs when a force acts on an object to move it in a parallel to the force vector

A

mechanical work

35
Q

which is known as the rate of doing work

A

power

36
Q

the advantage that simple machines give us is known as:

A

mechanical advantage

37
Q

which principle states that to converse work and energy, simple machines compensate for a smaller effort force by exerting that force over a longer distance

A

distance principle

38
Q

which simple machine is a rigid bar that rests on a pivot point

A

lever

39
Q

which class of lever does the fulcrum sit between the resistance and effort

A

first class lever

40
Q

which is modified form of a wheel and axel and has notches or teeth around it

A

gear

41
Q

which is a two dimensional tilted surface that allows a resistance load to be moved from a lower position to one that is higher with less effort than lifting vertically

A

inclined plane

42
Q

which wheel which a groove around its outer circumference mounted on an axle, and a rope rests in the groove and moves which the pulley as it rotates

A

screw

43
Q

which is a fastener that exerts a large amount of force to hold objects together

A

screw

44
Q

what is the formula for work

A

w= f*d

45
Q

the pivot point of a lever

A

folkrum

46
Q

which simple machine is a disk that rotates around an axis ( on a car)

A

wheel

47
Q

give an example of a wedge

A

an axe

48
Q

give an example of a second class lever

A

Dollie

49
Q

a cylindrical screw with closely spaced threads are called……

A

bolts

50
Q

what is the formula for power

A

p=w/t

51
Q

changing the shape of a of a container will change the fluids pressure (t\f)

A

false

52
Q

E torricelli invented the mercury barometer (t\f)

A

true

53
Q

bernoulli’s principle describes hoe the velocity and pressure of fluid change when flowing through different sized pipes(t\f)

A

true

54
Q

barometers are no longer useful (t\f)

A

false

55
Q

tsunameter are a practical example of using fluid pressure to solve a problem (t\f)

A

true

56
Q

what is the study of how fluids flow and how forces and energy are transmitted through fluids

A

fluids mechanics

57
Q

what property of fluids states that at a given point in a body of water the pressure is exerted equally in all directions

A

fluid pressure

58
Q

what is water pressure due to depth alone called (cht8 q10

A

hydrostatic pressure

Finals (4 decks)

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