Dr. Harris Chapter 1

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The longest of the following is: 1mm; 0.00001km; 0.01in; 0.001ft

0.00001 km

A meter is not equal to

0.01 km

A centimeter is

0.01 m

The shortest of the following is: 10^4in; 10^4m; 10^3ft; 0.1mi

0.1 mi

The prefix giga stands for

1,000,000,000

The time needed for a planet to orbit the sun

depends on the average distance of the planet from the sun

The time at which a given star rises above the horizon each night is

earlier than the night before

Relative to the stars, the moon seems to move

eastward

The stars in a constellation

form a pattern in the sky as seen from the earth

Stars & planets are round because

gravity forces them into this shape

Living things

have evolved throughout the earth's history

When the sun, the earth, and the moon are all in line,

high tides are higher than usual & low tides are lower than usual

When first proposed, a scientific idea is usually called a

hypothesis

The speed of a planet in its orbit

is highest when it is closest to the sun

Astrology

is nonsense

What distinguishes the scientific method from other ways of looking at the natural world is

its reliance on experiment & observation

The discovery that the planetary orbits are ellipses rather than circles was made by

kepler

A regularity in observed data or a relationship between different quantities is usually called

law

Arrange the following planets in order of their distance from the sun: Venus, Mars, Earth, Mercury

mercury, venus, earth, mars

The length of the year is

more than 365 days

Scientific theories

must be constantly reviewed to see whether they are in accord with new experimental observations

A planet that cannot be seen with the unaided eye is

neptune

The period of the earth's orbit around the sun is

one year

The object in the sky that lies very nearly on an extension of the earth's axis is

polaris

Gravity is not

responsible for holding atoms & molecules together

In the distant past, the length of the day was

shorter than 24 hours

Kepler modified

the Copernican system

If the earth had no moon,

the average tidal range would be smaller

A day is the time needed for

the earth to turn completely on its axis

In which one or more of the following is the earth assumed to be the center of the universe?

the ptolemaic system

A year is the time needed for

the sun to drift completely around the sky

In most parts of the world, high tides occur approximately

twice a day

If the earth were to revolve on its axis slower than it does today, its shape

would be close to a perfect sphere

The British unit of length closest to the meter is the

yard

A person is 5 ft. 8 inches tall. This is equivalent to

173 cm

The size of a picture is given as 84 cm by 255 cm. Since (84)(255)=2.142 exactly, the area of the picture is correctly expressed as

2.1m^2

The number of cubic centimeters in a cubic foot is about

2.8 x 10^4

The scientist who showed that gravity accounts for Kepler's laws of planetary motion was

Newton


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