Chapter 6 Flashcards

(33 cards)

1
Q

Potential energy

A

Stored energy

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2
Q

Kinetic energy

A

Energy in motion

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3
Q

What energy has both potential and kinetic energy?

A

Mechanical energy

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4
Q

Most real world collision is elastic.

A

False, partially elastic

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5
Q

Examples of acoustic sources

A

earthquakes, explosions, bass speakers, submarine sonar equipment, human vocal cords, piccolos, jet engines, dog whistles, bats, and medical ultra sound diagnostic equipment

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6
Q

Force

A

Push or pull

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7
Q

Work

A

Product of a force of an object

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8
Q

Mechanical energy

A

The motion of objects

Has potential and kinetic energy

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9
Q

Thermal energy

A

The sum total motion of all atoms and molecules in an object
Kinetic energy of particles

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10
Q

Acoustic energy

A

the transmission of energy through matter by particle oscillations that occur in specific directions

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11
Q

Electrical energy

A

Charged objects exert field force, charged particles

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12
Q

Magnetic energy

A

Deals with magnetic field force

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13
Q

Radiant energy

A

Deals with magnetism and electricity

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14
Q

Chemical energy

A

Results from chemical changes

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15
Q

Nuclear energy

A

Energy in nuclear bonds

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16
Q

Mass energy

A

Energy from mass

17
Q

Zero reference position

A

The position from which this distance is measured

18
Q

What’s the sum total motion of all atoms and molecules in an object?

A

Thermal energy

19
Q

What represents the largest potential energy?

20
Q

Elastic

A

Kinetic energy is conserved

No real world collision is perfectly elastic

21
Q

Partially elastic

A

collision the rebounding objects are temporarily or permanently deformed in some way
Most real world collisions is perfectly elastic

22
Q

Inelastic collision

A

colliding objects stick together after the collision

Kinetic energy is not consumed

23
Q

Energy

A

Ability to do work

24
Q

How is energy is measured?

25
Gravitational potential energy
Increases with height
26
Kinetic energy formula
KE=1/2mv2
27
Heat
A change in thermal energy
28
Electrical energy
forces acting on other electrical charges that can do work
29
Fission
Breaks apart
30
Fussion
Comes together
31
Where is potential energy stored in chemical energy?
In the chemical bonds
32
law of the conservation of energy
thoroughly tested scientific law stating that energy can never be created or destroyed, only changed from one form to another
33
What's the efficiency of a man made transformation?
no more than 20%–40% efficient