Physics
Physics regards the physical aspects of the natural world. It includes topics that deal with forces on different bodies within the universe and phenomena that explain how the universe works.
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any material that does not conduct electricity is an insulator.
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petrified fossil
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A hygrometer measures humidity, or how dense water vapor is in the air.
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Meters / second. Or any unit of length divide by any unit of time.
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The nucleus is at the centre of an atom.
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The concepts of "work" and "energy" are quite similar, and they are measured in the same unit (Joules). The term "work" is...
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the first practical reflecting teliscope
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Yes, weight=mass*gravity. If mass stays the same, and the gravity changes, the weight will change, that's why someone would weigh...
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Isotopes.
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An alpha particle's charge will be 2+ as it has 2 protons and 2 neutrons. This is Helium, so its chemical sign would be: He2+
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buttered side down
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Please send a legible copy of page 180, along with $5.99 to cover the cost of shipping and handling, and we'll research the...
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No it is not. Fire is a chemical reaction involving matter (molecules). You could have and anti-matter fire however. It would be...
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If you refer to the units, power (any power, not just electrical power) is energy divided by time. The SI unit is the watt, equal...
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You do, If you bounce it then it bounces, If you don't, then it wont bounce. Duh.
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20N
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The coulomb is a unit of electric charge. That quantity is called 'electric charge'. The ampere is a unit of how many coulombs...
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An object has no forces acting upon it and does not move. I think that's a pretty good example.
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Mass and Distance. The more mass an object has the greater its gravitational pull will be. Also the distance from the object...
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This physical phenomenon (a change of phase) is called melting; during melting the chemical nature of molecules is not changed.
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The potential energy of a mechanical object in relation to gravity is dependent on the mass of the object, and the height of the...
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We're having some trouble making out the ones illustrated in your reading material, and we're disappointed that you chose not to...
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i think 4
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The crest is at the top of a wave, the trough is at the bottom of the wave.
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over exposure can lead to sunburn, inflammation, and tanning. Over time it may lead to blindness or cancer.
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