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Physical science Jeopardy Words Answers

This rock the most abundant on land is a popular tombstone material

Physical science • Level 479

Fm radio was invented to eliminate this problem in am broadcasts

Physical science • Level 608

The 2 main types of these chemically-tipped pieces of wood or cardboard are strike-anywhere & safety

Physical science • Level 661

In some respects light behaves like waves & in others like these particles

Physical science • Level 803

About 2/3 of the earth's crustal rocks are of this type formed from a molten state

Physical science • Level 866

It's the point at which converging rays of light meet or what's yelled to bad projectionists

Physical science • Level 913

At 15 on the modified mohs' scale this substance still has the highest hardness number

Physical science • Level 1016

It's this force that holds a screw in place in wood or slows an object sliding down an incline

Physical science • Level 1100

Hygroscopic substances have a tendency to absorb this

Physical science • Level 1246

Current can be said to enter a vacuum tube through the anode & leave through this electrode

Physical science • Level 1503

It's the lightest known stable subatomic particle

Physical science • Level 1639

The black charred surface on your toast this morning was this element

Physical science • Level 1716

From the greek for power it's the study of force & motion

Physical science • Level 1797

This force that hinders an airplane's forward thrust is caused by friction with the air

Physical science • Level 1805

This is the force that holds a galaxy together

Physical science • Level 1842

Surgeons learned to use them to weld back a detached retina or to remove tattoos

Physical science • Level 1874

The most common volcanic rock in the earth's crust it also covers the dark lowlands of the moon

Physical science • Level 2060

A body at rest will remain at rest unless acted upon by a force according to newton's law of this property

Physical science • Level 2182

It naturally travels in a straight line & travels at the fastest speed of anything we know

Physical science • Level 2630

Scientists figure the earth's core to be mainly a heavy compressed lump of this metal

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In 1889 cordite a type of gunpowder that didn't do this was developed

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Also known as caustic soda it's commonly used in soapmaking

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A drop of most types of this will cause marble to bubble

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It's the point at which converging rays of light meet or what's yelled to bad projectionists

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It naturally travels in a straight line & travels at the fastest speed of anything we know

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It's distance traveled divided by time of travel

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This force that hinders an airplane's forward thrust is caused by friction with the air

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After aluminum this element with the symbol fe is the second most abundant metal in the earth's crust

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It's the planet whose length of a year is closest to ours

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A 1-megaton bomb has the explosive power of a million tons of this

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To scientists it's force times distance; to twain it's whatever a body is obliged to do

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