What does the word "lodestone" mean?

Leading Stone
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Related trivia

What liquid is a fuel commonly used in automobiles?
Gasoline
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What are the ends of a bar magnet called?
Poles
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What is a space which is entirely devoid of matter called in science terms?
Vacuum
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What does splitting a laser light into two beams through a silver mirror make?
Hologram
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What constant is equivalent to 96,485 coulombs per mole of electrons?
Faraday
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What is the main form of energy produced by a laser?
Light
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What kind of electromagnetic radiation arises only from nuclear excitations?
Gamma Rays
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If you're talking about electricity, what does "DC" stand for?
Direct Current
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What tool uses a magnetic needle that points north?
Compass
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What liquid is used as a standard when measuring density?
Water
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How many grams are in a pound?
454
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What is the distance between two peaks of a wave called?
Wavelength
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How much would a 150-pound person weigh at the center of the earth?
Nothing
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If you throw a ball in the air, what curve does it trace out?
Parabola
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What is the scientific word for push or pull?
Force
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What word describes a material which maintains a magnetic field after an external field is removed?
Ferromagnetic
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What is the wire that gives off light in a light bulb?
Filament
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What is the repeated sound when sound waves bounce off other objects called?
Echo
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What unit is resistance measured in?
Ohm
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To which part of physics does the Archimedes' Principle refer?
Buoyancy
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What tool do people at sea use to measure distance with echoes?
Sonar
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Masses are to Newton's Gravitational Law as charges are to what?
Coulomb's Law
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What unit of measurement is one-thousandth of a gram?
Milligram
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What sort of electricity do you get when you rub two balloons and they stick together?
Static
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