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Sheldon!
Physics
| Question | Answer |
|---|---|
| The study of science today branches into the study of the ___________ sciences and the _________ sciences. | life/physical |
| Zoology (physical or life science) | life |
| Physics | physical |
| Chemistry | physical |
| Biology | life |
| Botany | life |
| Geology | physical |
| Astronomy | physical |
| the study of the nature of things such as motion, forces, energy, matter, heat, sound, light, and the composition of atoms | physics |
| the study of how matter is put together, how atoms combine to form molecules, and how the molecules combine to make up matter | chemistry |
| the study of matter is alive | biology |
| equations are a compact way to express | relationships between concepts |
| two scientists usually credited as the principal founders of the scientific method | Galileo Galilei and Francis Bacon |
| in a ________ experiment, there are usually two or more experimental groups whose results are compared to a ____ group that is kept under normal, standard conditions | controlled/control |
| the variable that the scientist changes on purpose is the ____ variable | independent |
| the resulting change is called the _____ variable | dependent |
| In writing a hypothesis, what is the format that is used that is used? | The theory, the scientific language of the theory, synthesis of a large body of information |
| a close agreement by competent observers who make a series of observations of the same phenomenon | fact |
| a hypothesis that has been tested over and over again and not contradicted | laws |
| an educated guess that is not fully accepted until demostrated by experiment | hypothesis |
| What should happen if a scientist finds evidence that contradicts a hypothesis, law, or principle? | it must be abandoned or changed |
| what must be true in order for a hypothesis to be scientific? | there must be a test for proving it wrong |
| scientists perform an _______ to test a _______ | experiment/hypothesis |
| Science is a method of answering __________ | theoretical questions |
| technology is a method of solving ________ | pracitcal problems |
| involves the design creation of something for the use of enjoyment of humans (science or technology?) | technology |
| has to do with discovering facts and relationships between observable phenomena in nature (science or technology?) | science |
| studying the effect of shape on flight of objects (science of technology?) | science |
| designing a new golf ball (science or technology?) | technology |
| making swine-flu vaccines (science or technology?) | technology |
| determining the cause of swine-flu (science or technology?) | science |
| concerned with the source, purpose, and meaning of everything | religion |
| concerned with the value of human interactions as they pertain to the senses | art |
| concerned with discovering and recording natural phenomena | science |
| science and religion do not contradict one another because the domain of science is ________ | natural order |
| the domain of religion is _____________ | nature's purpose |
| _____ are the building blocks of life | atoms |
| ________ are materials composed of only one kind of atom | elements |
| The number of known elements is currently about ____ | 115 |
| Of these _______ are naturally occurring elements and the rest are man-made in laboratories | 90 |
| Which five elements make up most of living things? | Oxygen, Carbon, Hydrogen, Nitrogen, and Calcium |
| Most of the natural elements are formed by ________ reactions that occur in _____ | fusion, stars |
| Which element is the most abudant element in the universe? | Hygrogen |
| Research has confirmed that about 23 percent of the matter in the universe is composed of unseen _______________ | dark matter |
| Atoms cannot be seen with visible light because they are smaller than the __________ of light | wavelength |
| Atoms in your body have been around since long before the solar system came into existence, more than __________ years ago | 4.6 billion |
| __________________ is perpetual jiggling of particles that are just large enough to be seen caused by the motion of___________________ | Brownian Motion, Neighboring Atoms and Scanning electron molecules |
| A ________ is the smallest particle of a substance consisting of two or more atoms that bond together by sharing electrons | molecule |
| Matter is a ________ or ________ at room temperature is usually made of molecules | gas, liquid |
| Which sense can humans use to detect the presence of molecules such as sulfur dioxide, ammonia, or ether? | smell |
| A ________ compound is a substance that is made of atoms of different elements combined in a fixed proportion | compound |
| The ___________ of a compound tells the proportions of each kind of atom in the compound | chemical formula |
| __________________ is perpetual jiggling of particles that are just large enough to be seen caused by the motion of___________________ | Brownian Motion, Neighboring Atoms and Scanning electron molecules |
| A ________ is the smallest particle of a substance consisting of two or more atoms that bond together by sharing electrons | molecule |
| Matter is a ________ or ________ at room temperature is usually made of molecules | gas, liquid |
| Which sense can humans use to detect the presence of molecules such as sulfur dioxide, ammonia, or ether? | smell |
| A ________ compound is a substance that is made of atoms of different elements combined in a fixed proportion | compound |
| The ___________ of a compound tells the proportions of each kind of atom in the compound | chemical formula |
| How many elements are found in the compound magnesium bromated | 3 |
| Where is most of the mass of an atom located? | nucleus |
| principal building blocks of an atom's nucleus | nucleons |
| nucleons in an electrically neutral state | neutrons |
| necleons in an electrically charged state | protons |
| atoms of the same element having different numbers of neutrons | isotopes |
| the number of protons in atom's nucleus | atomic number |
| Protons repel _______ but attract ________ | protons, electrons |
| Electrons repel ______ but attract ________ | electrons, protons |
| An atom with a net charde is an _____ | ion |
| The _______________ is a chart that lists atoms by their atomic number and by their electron arrangements | periodic table |
| _____________ are located on the left side of the periodic table and ________________ on the right | metals, non-metals |
| In the _______ phase, matter consists of positive ions and free electrons | plasma |
| The plasma phase exists only at _____________ | higher temperatures |
| the time it takes for one back-and-forth motion of a pendulum is called the ______ | period |
| One complete back-and-forth motion of a pendulum is called a ______ | cycle |
| List the two things that determine the period of a pendulum. ______ and _________ | Length and Acceleration of gravity |
| distance between successive identical parts of a wave | wavelength |
| low point on a wave | trough |
| vibrations per unit of time | frequency |
| high point on a wave | crest |
| distance from a midpoint to a crest | amplitude |
| hertz is the unit of measuring this | frequency |
| energy of a wave | amplitude |
| the speed of sound in air is about _____ m/s to _____m/s | 330, 350 |
| an __________ is a regular arrangement of places where wave effects are increased, decreased, or neutralized as waves pass through each other | interference pattern |
| the points on a standing wave where no motion occurs are called ____________ | nodes |
| Standing waves occur because of __________ | interference |
| The blue shift and red shift refer to how the Doppler effect affects _________ waves | light |
| An ___________ in frequency is called a blue shift, while a ___________ in frequency is called a red shift | increase, decrease |
| Bow waves from when the wave source moves ______ than the wave speed | faster |
| A shock wave has the shape of a _____ | cone |
| sound waves with frequencies below the normal range are _______________ waves while sound waves with frequencies above the normal range are _____________ waves | infrasonic, ultrasonic |
| A pulse of compresses air is called a ________, and a pulse of low-pressure air is called a ___________ | compression, rarefaction |
| For all wave motion, it is not the ________ that travels, but a _________ that travels | medium, pulse |
| The speed of sound in a gas depends primarily on _________ and ______________ | temperature, mass of the particles in gas |
| _______ in the air increases the speed of sound in air | water vapor |
| What is the intensity of sound proportional to? | the square of the amplitude of the wave |
| We interpret intensity of sound as ___________ | loudness |
| Natural frequency is the frequency at which an ______ object, once energized, will vibrate | elastic |
| Turning a radio station dial uses the principle of ________ | resonance |
| a _______________ of a sound wave corresponds to a crest of a transverse wave | compression |
| a _______________ of a sound wave corresponds to a trough of a transverse wave | rarefaction |
| When the crests of one wave overlap the crests of another wave, there is _____________ interference and a decrease in _________ | destructive, amplitude |
| Anti-noise technology use _________ interference to protect the hearing of jackhammer users | destructive |
| vision results from streamers or filaments emmitted by the eye making contact with an object | Euclid |
| Light is a wave | Huygens |
| Light consists of tiny particles | Newton |
| Light consists of tiny particles of energy that travel as waves | Einstein |
| _______________ are massless bundles of concentrated electromagnetic energy | photons |
| Albert Michelson received the Nobel Prize for using a system of mirrors to measure _______________ | the speed of light |
| How much time does it take light to travel from the sun to Earth? | eight minutes |
| What is a light year? | distance light can travel in one year |
| What is the source of energy in light? | accelerating electric charge |
| The energy in an electromagnetic wave is part _______ and part __________ | magnetic, electric |
| Name the different waves that make up the electromagnetic spectrum, in order from lowest to highest freqency | radio, microwaves, infrared, visible, ultraviolet waves, x-rays, gamma rays |
| Electromagnetic waves of frequencies slightly lower than the red waves of visible light are called _________ | infrared |
| Electromagnetic waves of frequencies slightly higher than the violet waves of visible light are called __________ | ultraviolet |
| _______ light and ______ light do NOT pass through glass while ____ light does | UV, infrared, visible |
| Our atmosphere is transparent to ________ light and __________ light, but almost opaque to ___________ light | visible,infrared,ultraviolet |
| Would you position a light source close or far from an object in order to produce a sharp shadow? | close |
| A total shadow is called an ________ | umbra |
| If you shake a rope up and down, it becomes __________ polarized | vertically |
| If you skake a rope from side to side, it becomes ___________ polarized | horizontally |
Created by:
phoenix1901
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