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Matter and Energy Flashcards | StudBud
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Matter and Energy
Matter and Energy
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1
Phenomenon that causes a change in pitch/frequency of a sound when a source is moving towards or away from an observer
Doppler effect
Electric Fields
Sound waves
2
Provide a graphic representation of electric fields:
Scalar descriptions
Coulomb's and Gauss's Laws
Field lines
Direct interactions
3
Material that tnasferes charge ocassionally. Such as silicon, germanium, and gallium arsenide.
Insulator
Semiconductor
Conductor
4
What name is given to the science of sound?
Dynamics
Acoustics
Static
5
What is the SI unit of frequency?
Hertz
Newton
Pascal
Joule
6
Is an electric charge placed on a point with no dimensions:
Continuous distribution charge
Positive System
Distributed charge
Point Charge
7
Material that impedes the free flow of electrons from atom to atom. Such as plastic, ebonite, bakelite, sulfur and air.
Insulator
Semiconductor
Conductor
8
Material wich permits electrons to flow freely from particle to particle.
Insulator
Semiconductor
Conductor
9
Around what year Thales discovered that a yellow petrified tree resin attracted dust and leaves when rubbed with a cloth
624 BC
624 AC
642 BC
10
What is the study of the behavior and properties of matter and energy called?
Geology
Chemistry
Biology
Physics
11
Different charges will _______ each other
Attract
Repel
12
Developed the theory that allowed the improvement of alternating current generator and motors:
Julius Plucker
Thomas Alva Edison
Alexander Graham Bell
Nikola Tesla
13
What is the SI unit of force?
Watt
Newton
Pascal
Joule
14
What is the SI unit of electric charge?
Volt
Ohm
Ampere
Coulomb
15
What is the acceleration due to gravity on Earth?
6.8 meters per second squared
10 meters per second squared
9.81 meters per second squared
16
Name one of the four fundamental forces that physicists talk about in the world of Physics.
Force
Gravity
Acoustic
17
What is the SI unit of power?
Watt
Ampere
Joule
Volt
18
Scientist that said that electricity is produced by movement. Concluded that tension can be induced on a coil...
Gustav Robert Kichhoff
Sir Humphry Davy
Alessandro Volta
Michael Faraday
19
Equal charges _______ each other.
Attract
Repel
20
The field produced by a __________ point charge is directed outward from the charge.
Negative
Positive
Distributed
Neutral