Glovers Final Flashcards

(58 cards)

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
which type of nuclear energy occurs the the nucleus of an atom is split apart
fission
26
what is the most abundant form of of potential energy in the universe
mass energy
27
what does the law of conservation of energy state
it cannot be created or destroyed but in can be changed
28
what is the formula for momentum
p=m*v
29
works measured in watts (t\f)
false
30
power is measured in watts (t\f)
true
31
ideal mechanical advantage is a machines advantage under perfect conditions (t\f)
true
32
nail clippers are an example of a third class level (t\f)
true
33
in the US, bolts are classified by their thread count(t\f)
true
34
what occurs when a force acts on an object to move it in a parallel to the force vector
mechanical work
35
which is known as the rate of doing work
power
36
the advantage that simple machines give us is known as:
mechanical advantage
37
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
distance principle
38
which simple machine is a rigid bar that rests on a pivot point
lever
39
which class of lever does the fulcrum sit between the resistance and effort
first class lever
40
which is modified form of a wheel and axel and has notches or teeth around it
gear
41
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
inclined plane
42
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
screw
43
which is a fastener that exerts a large amount of force to hold objects together
screw
44
what is the formula for work
w= f*d
45
the pivot point of a lever
folkrum
46
which simple machine is a disk that rotates around an axis ( on a car)
wheel
47
give an example of a wedge
an axe
48
give an example of a second class lever
Dollie
49
a cylindrical screw with closely spaced threads are called......
bolts
50
what is the formula for power
p=w/t
51
changing the shape of a of a container will change the fluids pressure (t\f)
false
52
E torricelli invented the mercury barometer (t\f)
true
53
bernoulli's principle describes hoe the velocity and pressure of fluid change when flowing through different sized pipes(t\f)
true
54
barometers are no longer useful (t\f)
false
55
tsunameter are a practical example of using fluid pressure to solve a problem (t\f)
true
56
what is the study of how fluids flow and how forces and energy are transmitted through fluids
fluids mechanics
57
what property of fluids states that at a given point in a body of water the pressure is exerted equally in all directions
fluid pressure
58
what is water pressure due to depth alone called (cht8 q10
hydrostatic pressure