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MSU / Physical Science / PHSC 1013 / What happens to kinetic energy when an object slows down?

What happens to kinetic energy when an object slows down?

What happens to kinetic energy when an object slows down?


School: Mississippi State University
Department: Physical Science
Course: Physical Science Survey 1
Professor: Paul cuicchi
Term: Spring 2016
Cost: 50
Name: Final Exam Physical Science
Description: study guide
Uploaded: 11/28/2017
6 Pages 40 Views 3 Unlocks

Final Exam Study Guide 

What happens to kinetic energy when an object slows down?

Professor: Florin Lung 


Test 1

● Weight is not considered a fundamental property

● Scientific thinking mean analyzing the situation, accepting  experimental results, and questioning the authority of other  


● The velocity of a falling object is constantly increasing (ignoring  air resistance)


● p=m/v  

● m=pv 

● d=vt 

● t=d/v 

● w=mg 

● a=f/m 

Test 2

● Energy is conserved when a moving object slows to a stop ● The same amount of work is done when one walk up stairs and  

Is fahrenheit or celsius more accurate?

runs up stairs

● The fahrenheit thermometer scale is equally accurate as the  


● Freezing point of water is 273 K 


● w=fd

● ke= 1/2mv ^2 

● M=mv 

Test 3

Chapter 5: 

● Frequency is NOT the time required for one complete cycle.  

-Frequency is amount of vibrations that are completed in one  second

-Unit: Hertz (Hz)  

● Sounds that move through air are NOT transverse waves. ● Only pressure waves or longitudinal waves can travel through  

Do longitudinal waves have compression?

Don't forget about the age old question of What are the colors of the clouds?


● Transverse mechanical waves can only move through solids. ● Longitudinal waves can move through gases, solids, and liquids. ● Sound does NOT travel faster through cold, denser air than  

through warm, less dense air. 

● Sound waves travel faster in warm air compared to cool air, solids 

compared to liquids, and liquids compared to gases. 

● When you increase the energy that goes into starting a vibration,  

the amplitude increases 

● A period is the time required for one cycle of any repeating event  ● Longitudinal waves are particles of a material that move back  

and forth in the same direction of the wave 

● Transverse waves are particles of a material that move up and  

down perpendicular to the direction of the wave  

● The greater the frequency, the higher the pitch will be. ● Both constructive and destructive sound interference is  We also discuss several other topics like Isaac had two sons; who are they?

necessary to produce beats. 

● A resonance takes place at a natural frequency and is an efficient 

transfer of energy  

● Frequency is the number of cycles that a vibrating object moves  

through during a time interval of 1 second.

● The frequency of the wave is what is interpreted as pitch. ● The period of a vibrating object is inversely proportional to the  


● A wave travels and carries energy. 

● An echo and a reverberation is different based on the time  interval between the sound reflected and the original sound

________________________________________________________________________ _____________

Chapter 6: Electricity

● The electrical force is NOT much weaker than the force of gravity. If you want to learn more check out It is when the price of a good changes ceteris paribus, we move along the supply curve. what is it?

● An object gaining protons does NOT cause it to become  positively charged.

● An object becomes positive by gaining an excess of electrons.

● Doubling the distance between two charged objects will reduce  the electrical force by a factor of four.

● A magnetic field is produced around a wire by a charge moving  through the wire. We also discuss several other topics like What is the pathogen in pulmonary?

● The attractive force between two unlike charges and the  repulsive force between two like charges have the same strength.

● Chemical, light, and electrical phenomena involve movement or  interactions in the electrons of the atom.

● An object becomes electrostatically charged after the transfer of  electrons.

● A unit of electrical charge is called a coulomb.

● A unit of electrical potential difference is called a volt. ● A unit of electrical current is called an amp.

● A watt requires a measure of time.

● Work has the unit of kilowatt-hour.

● Amp and watt are measures of rates.

● Ohm’s law states that the potential difference increases if the  current in a circuit increases.


Wave Velocity, v=f λ  

Speed of sound, v = 331+ 0.6(T)

Beat frequency, fb= f₂-f₁ 

Harmonic frequency, fn= nv/2L

Charge of an object, q=ne

Single electron = -1.60 x 10^-19 C We also discuss several other topics like How do we guarantee the person we vote for will act as we want?

Single proton = +1.60 x 10^-19 C 

q = total charge in coulombs  

n = number of extra electrons  

 e = fundamental charge 

Frequency and period are inverse. 

T= 1/F ←-------------→ F= 1/T 

Voltage, V= W/ q 

Ampere, I= q/ t …. 1A= 1C/ 1 sec 

Ohm’s Law, V=IR … R= V/ I … I= V/ R 

Power, P= IV 

Series Resistances, Rtotal= R1 + R2 … 

Parallel Resistances, 1/Rtotal= 1/R1 + 1/R2 … 

Test 4 

Chapter 6 & 7 

● Magnetism is produced by the movement of electrical currents. ● If you reverse the direction of a current in a wire, the magnetic  field around the wire will have a reversed north pole direction. ● A step-up transformer steps up the voltage. If you want to learn more check out How to measure color temperature?

● Light interacts with matter through the process of absorption,  reflection, and transmission.

● A prism separates the colors of sunlight into a spectrum due to  each wavelength of light having its own index of refraction. ● Green grass is a reflection green light. 

● The polarization behavior of light is best explained by considering light to be transverse waves.

● Max Planck discovered that the energy of vibrating molecules  existed only in multiples of certain fixed amounts when involved  in blackbody radiation.

● Earth’s magnetic field has undergone many reversals in polarity. ● Because a moving charge produces a magnetic field of its own, a  current-carrying wire has a magnetic field around it.

● The current in the secondary coil of a transformer is produced by  a varying magnetic field.

● Dispersion is the separation of white light into its component  colors.

● A pencil appearing bent in a glass of water is an example of  refraction.

● Green grass absorbs all light except green light. 

● Interference can only be explained by a wave model of light. ● Higher frequency has more energy. 

● A thin wire would have more electrical resistance than a thick  wire with the same material, length, and temperature. ● The electric field that surrounds an electric charge will collapse  inward if the charge suddenly neutralizes.

● The earth’s magnetic north pole is a south magnetic pole. ● The magnetic domains in a permanent magnet are aligned,  giving it magnetic properties.

● The force of attraction between two unlike charges has the same  strength as the force of repulsion between two like charges. ● The electrical force is not weaker than the force of gravity. ● A magnetic field is always produced around the wire by a charge  moving through it.

● A person’s brain’s interpretation of light rays is considered a  virtual image.

● Red light has the lowest frequency and longest wavelength  detected by your eyes.

● Warm air has a higher index of refraction in comparison to cool  air and produces a mirage.

● The changing refraction from the mixing of cool and warm air  produces the ‘shimmering’ that one observes on a heated  surface.

● The color blue has more energy based on the relationship  between energy of light and frequency.

● The photoelectric effect cannot be explained with a wave theory  of light.

● Polarization cannot be explained with a particle theory of light. ● An object that produces light of its own is a luminous object. ● Based on the electromagnetic wave model, when an electrical  

charge is accelerated with a magnitude within a given range  visible light is produced.

● After an object is hot enough to produce a dull red glow, it will  produce a shorter-wavelength and higher-frequency radiation if it  is heated more.

● The difference in temperatures is the difference in the light that is produced by the sun, light bulbs, and candles.  

● Sunlight is mostly infrared radiation before traveling through the  earth’s atmosphere.

● Because the light has undergone diffuse reflection, it gives one  the ability to see in shaded areas.

● All parts of the electromagnetic spectrum can be measured in the units of wavelength, energy, or frequency.

● Interference can only be explained by a wave model of light. ● Because blue light is scattered more than any other color, the sky appears blue.

● Light today is considered a small-scale phenomenon. ● A full moon is not more luminous than a half moon. ● Incandescent objects are more luminous because of the high  temperature.

● Color is for light what pitch is for sound. 


➢ v1/v2= n1/n2 

➢ n= c/v 

➢ E= h*f, c= f*λ, E= h*c/λ ……. h= 6.63 x 10^-34 J . s

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