Physics Exam 3

A wave with vibrations a right angles to the direction the wave is traveling

Transverse wave

If the temperatures of A=B and B=C, then the temperature of A=C

Zeroth Law

A standing wave pattern is established in a string as shown. The wavelength of the traveling waves is

d=number of waves(λ/2)

When the Kelvin temperature of a gas in a container is doubled and the volume remains the same, the gas pressure

doubles

At lower altitudes, atmospheric pressure is higher than in the mountains. Therefore the boiling temperature of water at lower altitudes is ___ that at higher, mountain altitudes

higher than

When additional heat is added to a pan of boiling water that is open to atmosphere, the temperature of the mixture

is unchanged

If two objects are in thermal equilibrium with each other

they cannot be at different temperatures

How to find the wavelength given velocity (speed) and frequency

λ=v/f

Distance between successive crests or troughs of a wave

Wavelength

What is the limiting low temperature of a physical object

0 K

If the frequency of a certain wave is 10.0 hertz, its period is

0.100 second

Room temperature on the Celsius scale is about

25° C

A sinusoidal wave is traveling toward the right as shown. Which letter correctly labels the wavelength of the wave?

A (from the highest/lowest point of a wave to the highest/lowest point of the next wave)

A solid substance that displays a small increase in temperature after absorbing a relatively large quantity of heat energy has___

A large specific heat capacity

How to find the change in length given the coefficient of thermal expansion, the length, and change in temperature?

Change in length = (coeff. of thermal expansion)*(length)*(change in temp)

Heat transfer from particle within certain materials

Conduction

Results from crest-to-crest addition of two or more superposed waves

Constructive interference

How to find the final volume given initial volume, initial temp, and final temp

Convert both temps to Kelvin (°C + 273.15) then use V_2=(V_1/T_1)*(T_2)

When a bimetallic bar made of copper and iron strips is cooled the bar bends toward the copper strip. The reason for this is

Copper shrinks more than iron

A sinusoidal wave is traveling toward the right as shown. Which letter correctly labels the amplitude of the wave?

D (from the X axis to the highest/lowest point of the wave)

The shift in frequency due to motion of a vibrating source toward or away from a receiver

Doppler effect

Change of phase from liquid to vapor that takes place at the surface of a liquid

Evaporation

A temperature difference of 10 degrees C is equal to a difference of 18 degrees on the

Fahrenheit scale

A heated fluid is moved by a pump or fan

Forced convection

The sun's energy easily absorbed by earth's surface cannot easily escape the earth's atmosphere back out to space

Greenhouse effect

Amount of energy that must be added (or removed) to a unit mass of liquid to vaporize it (or condense it).

Heat of vaporization

What is the difference between transverse and longitudinal waves

In transverse waves the displacement is perpendicular to the direction of propagation of the wave, while in longitudinal waves the displacement is parallel to the direction of propagation

The total energy stored in the atoms and molecules within a substance

Internal energy

Atoms or molecules that are close together and bound strongly to each other, but still able to roam around within the volume randomly

Liquid

The locations of zero amplitude in standing waves

Node

Moving back and forth regularly between two points

Oscillate

How to find the net power given surface temp, surface area, emissivity, outside temp, and the Stefan-Boltzmann constant

P=Aσε(T_1^4-T_2^4)

The SI unit of pressure

Pascal

The time in which a vibration or complete cycle is completed

Period

The force exerted per unit area by gaseous molecules as they collide with the surfaces around them

Pressure

How to calculate the heat required to convert solid to liquid given mass, heat of fusion, heat of vaporization.

Q=mL_f

Energy transmitted by electromagnetic waves

Radiation

Energy travels through space from the sun to the earth mainly by

Radiation

A wave shape defined by a mathematical function

Sine curve

Direct conversion of a substance from a solid to the vapor phase without passing through the liquid phase

Sublimation

When two or more waves overlap and their amplitudes add

Superposition

A measure of the average translational kinetic energy per atom or molecule of a substance

Temperature

When two bodies are in contact with each other and can freely exchange energy

Thermal equilibrium

When a wave on a string encounters a boundary and it passes through it

Transmission

A standing wave:

can be constructed from two similar waves traveling in opposite directions

You experience the Doppler effect when a source of sound moves

either toward you or away from you

How to calculate frequency given velocity and wavelength

f=v/λ

A poor heat conductor is a

good heat insulator

How to calculate the amount of heat required to raise the temperature given mass, initial and final temps, and specific heat

q=m*c*change in temp

An iron block is placed in a furnace where it is heated and consequently expands. In the expanded condition, its density is

smaller