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general study
natural science
| Question | Answer |
|---|---|
| Electrical potential difference is measured in______. | Volts |
| Electrical currents run in closed pathways called______. | Circuits(from area of high energy to area of low energy) |
| When something vibrates or moves the elastic medium(air,ground,water)it moves outward in staight lines in the form of______. | waves |
| Any disturbance that travels through an elastic medium to be heard by the ears is______. | sound |
| There is an_____________between true north and magnetic north. Most compasses take this into account. | 11% difference |
| The space around a magnet where its force can work is_______ | magnetic field |
| The ___________is the temperture at which some materials lose their magnetism. | Curie Point |
| A magnet whose magnetic field is stronger at its ends or poles is called. | polarized magnet |
| _____________ batteries are used for car batteries and lead storage batteries. | Wet cell |
| If the circiut is broken in batteries the flow of _____________ stops. | electrons |
| The 3 changes in the physical state of matter occur. | boiling, melting, and freezing points |
| ___________ batteries are everyday batteries you can buy in a grocery store. D, C, AA | Dry cell |
| The water pulls away from the shores as we get ______________. | farther away from the moon. |
| 1 meter=_____feet | 3.3 feet |
| Conversion Celsius to Fahrenheit | (C*1.8)+32 |
| 1 Liter = Quarts | 1.06 Q |
| Watts are equal to | amps times volts |
| Conversion Fahrenheit to Celsius | (F-32)/1.8 |
| 1 liter = gallons | .26 |
| 1 Kilometer = miles | .62 |
| 1 foot = meters | .3 |
| volts are equal to | current * ohms |
| 1 pound = kilograms | .45 |
| negative charged particles | electrons |
| The ratio of mass of an object divided by its volume | Density |
| ___________is a characteristic that depends on the reaction of a substance to form other substances. | Chemical property |
| lengh*width*height= | volume |
| The longer the wavelength | the lower the frequency. |
| The shorter the wavelength | the higher the frequency |
| Power in the United States is designated as | 60 Hertz or 60 cycles per second |
| Commercially produced magnets are made from what alloys | Co, Ni, Fe |
| The most commonly used alloy for magnets is_____. It contains what alloys | Alnico, Al, Ni, Co, Fe |
| The______ ____ __ ____ depends on the distance between the atoms or molecules and the rate of atomic or molecular motion. | physical state of matter |
| Atoms normally have an equal number of | protons and electrons |
| Tides are caused by | the pull of the moons gravity on the earth. |
| The ancient Greeks discovered a naturally occuring magnetic rock called | Iodestone (magnite) |
| Neaptides are___________and occur on___________ | very low tides 1rst and 3rd quarter of the moon phase |
| Spring tides are_____________ and occur on__________ | very high tidesthe full moon and new moon |
| Is thought to be the waves caused by the vibration of the object, weather or not they are heard. | Sound |
| ________are atoms that easily give up their electrons. | Conductors |
| ______are atoms that tightly hold their electrons in their orbitals or shells. | Insulators |
| The flow of electrons in a circuit is measured in | amperes (amps) |
| In Celsius water freeses at____, and boils at___, and the average human body temp is_____ | 0 degrees, 100 degrees, and 37 degrees |
| 1 kilogram = pounds | 2.2 |
| 1 gallon = liters | 3.78 |
| 1 mile = feet | 5,280 |
| 1 liter= pints | 2.113 |
| Electrical power is measured in | watts |
| 1 cup = milliliters | 240 |
| The number of wavecrests that pass one place in one second. It is measured in Hertz. | Frequency |
| In Fahrenheit water freezes , water boils, and the average human body temp. | 32 degrees, 212 degrees, and 98.6 degrees |
| Kelven is derived by | Adding 273 to Celsius |
| 1 liter = millileters | 1000 |
| Electrical potential difference is measured in | volts |
| What is the coldest possible temperature? | 0 degrees Kelvin or absolute zero |
| In Kelvin water freezes at,water boils at, and the average human body temp is. | 273, 373, 310 |
| It allows us to produce vitamin D, its why we wear sunscreen, it causes skin cancer, its used in hopitals to sterilize instruments, and the earths ozone layer blocks out mosto of it. | Ultraviolet waves |
| What are the 3 things an element can be classified as in the periodic table? | metals, non-metals, and metalloids |
| Conversion of celsius to Kelvin | C+273 |
| An average body temperture would be what in Kelvin? | 310 |
| A continuous range of waves | electromagnetic spectrum |
| Neutral praticles | neutrons |
| A battery allows electrons to flow in a | mini-circuit |
| If there is an imbalance in the number in the atom it is concideed to be | electrically charged |
| As the Earth rotates within the pull of the moon's gravity, the water is pulled toward the moon. This causes the water to | build up on the shores |
| The regular rising and falling of the Earth's major bodies of water | tides |
| _________ ____ ________ are used in compasses. | Polarized bar magnets |
| The average distance from the Earth to the moon is | 240,000 miles |
| Points east of the prime meridian have what degrees | east longitude |
| Runs through Greenwich, England and represents 0 longitude | Prime Meridian |
| What identifies locations or distances east or west of the prime meridian. perpendicular, vertically | longitude |
| Locations north of the equator are referred to by | degrees north latitude |
| Latitude is measured from ___ at the equator to ____at the poles. | 0 to 90 |
| __________ identifies locations or distances north or south of the equator. parallel, horizontal | Latitude |
| Where is 0 degrees latitude | the Equator |
| Second largest river | the Amazon in South America 4,000 miles long |
| 23 degrees south of the equater | Tropic of Capricorn |
| The earths longest river | the Nile in Africa 4,145 mile |
| What are more than one of the same atom | Elements |
| Points west of the prime meridian have | degrees west longitude |
| The earths crust is made up of what elements? | OSAICO..oxygen, silicon, aluminum, iron, calcium, and 9% other |
| Time gets later as you move | east |
| Time gets earlier as you move | west |
| for every 15 degrees longitude = | 1 hour |
| each time zone has a width of about | 15 degrees longitude |
| The earth is divided into how many time zones | 24 |
| Locations south of the equator are referred to by | degrees south latitude |
| The earth rotates at a speed of | 15 degrees longitude an hour |
| What is 23 degrees north of the equator? | Tropics of Cancer |
| Lines of longitude are called | meridians |
| The east and west longitude lines meet at the 180 degree meridian | International Date Line |
| What percent of the earths surface is liquid? | 70% |
| What percent of the earths surface is solid? | 30% |
| What delineates the tropical zone of the earth | The Tropics of Cancer and Capricorn |
| Examples of conductors are | silver,copper, aluminum, gold and water |
| Examples of insulators are | plastic, wood, paper, glass |
| An example of ___ would be the amount of power an appliance uses when on. | watts |
| Insulators restrict the flow of electrons, they are considered to have what? | resistance |
| ________have atoms that easily give up their electrons. | Conductors |
| What electricity changes direction in a back and forth cycle? | Alternating current |
| Pressure is measured in what? | PSI or Pascals |
| Electrical resistance is measured in what? | Ohms |
| The quality of electrical charge is measured in what? | Coulombs |
| Force (gravity) is measured in what? | Newtons |
| Frequency of wavelength is measured in what? | hertz or Hz |
| Energy is measured in what? | joules |
| Sound is measured in what? | decibels |
| 1 mile = Kilometers | 1.6 kilometers |
| Colored powders formed by grinding up a variety of materials | pigments |
| Primary colors of light are | red, blue, green |
| Primary colors of paint are made up of | pigments |
| The visible part of the electromagnetic spectrum is | light |
| The diameter of the Earth is approximately | 8,000 miles |
| We only see reflected light not ________ light. ________ is basically the absence of color. | absorbed light, Black |
| The earth has a circumference of approximately | 25,000 miles |
| A mixture of the primary light colors reflected back will yield a | white or colorless light |
| A mixture of primary paint colors wil yield the color | black |
| The most natural refraction of seven bans of colored light are | red,orange,yellow,green,blue,indigo,violet the rainbow |
| The primary colors of paint | red,blue,yellow |
| Anything that has mass and occupies space is called | matter |
| The earths 7 continents | Asia,Africa, N America, S America,Antarctica, Europe, Australia |
| Name 4 major oceans | Pacific, Atlantic, Indian, Arctic |
| All waves of the electromagnetic spectrum, including light, are considered to be | radiation |
| It possesses high energy and causes many substances to become flourescent | x-rays |
| Three types of gamma rays | gamma, beta, alfa. |
| What are rhythmic disturbances that carry energy through matter or spaces | waves |
| The type of wave that produces heat | Infrared waves |
| The frequencies used for microwaves, television, and radios | radio waves |
| Electricity where the electrons are flowing in one direction | Direct current |
| Frequency is measured in | Hertz |
| The quality of electrical charge is measured in | coulombs |
| An imbalance occurs in an atom when | An electron is added or removed from an orbital of an atom |
| It orbits around the nucleus | electrons |
| Inside the nucleus are | protons and neutrons |
| Positive charged particles | protons |
| Matter occurs in one of 3 physical states on earth. They are | liquid, solid, gasthe 4th recognized by scientest is plasma |
| The best element for conductivity since it possesses the lowest risistance is | Silver Ag |
| What is the flow of electrons | electricity |
| The distance from the top of one crest ot the top of the next crest is called | wavelength |
| The physical state of matter depends on what | the distance between the atoms or molecules and the rate of atomic or molecular motion |
| Light is made up of very tiny particles called______and can be refracted into _______ _____ of colored light. | photons seven bands |
| What emits the lowest wavelength electromagnetic radiation, and encompasses three types of radiation. | Gamma rays |
| We only see reflected light not ________ light. ________ is basically the absence of color. | absorbed light, Black |
| The earth has a circumference of approximately | 25,000 miles |
| A mixture of the primary light colors reflected back will yield a | white or colorless light |
| A mixture of primary paint colors wil yield the color | black |
| The most natural refraction of seven bans of colored light are | red,orange,yellow,green,blue,indigo,violetthe rainbow |
| The primary colors of paint | red,blue,yellow |
| Anything that has mass and occupies space is called | matter |
| The earths 7 continents | Asia,Africa, N America, S America,Antarctica, Europe, Australia |
| Name 4 major oceans | Pacific, Atlantic, Indian, Arctic |
| All waves of the electromagnetic spectrum, including light, are considered to be | radiation |
| It possesses high energy and causes many substances to become flourescent | x-rays |
| Three types of gamma rays | gamma, beta, alfa. |
| What are rhythmic disturbances that carry energy through matter or spaces | waves |
| The type of wave that produces heat | Infrared waves |
| The frequencies used for microwaves, television, and radios | radio waves |
| Electricity where the electrons are flowing in one direction | Direct current |
| Frequency is measured in | Hertz |
| The quality of electrical charge is measured in | coulombs |
| An imbalance occurs in an atom when | An electron is added or removed from an orbital of an atom |
| It orbits around the nucleus | electrons |
| Inside the nucleus are | protons and neutrons |
| Positive charged particles | protons |
| Matter occurs in one of 3 physical states on earth. They are | liquid, solid, gasthe 4th recognized by scientest is plasma |
| The best element for conductivity since it possesses the lowest resistance is | Silver Ag |
| What is the flow of electrons | electricity |
| The distance from the top of one crest ot the top of the next crest is called | wavelength |
| The physical state of matte depends on what | the distance between the atoms or molecules and the rate of atomic or molecular motion |
| Light is made up of very tiny particles called______and can be refracted into _______ _____ of colored light. | photonsseven bands |
| What emits the lowest wavelength electromagnetic radiation, and encompasses three types of radiation. | Gamma rays |