Shape And Spheres Of Earth Question Preview (ID: 56727)

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The Earth is slightly flattened from a perfect spherical shape because of

a) its rotation

b) the pull of the sun and moon

c) storms on the sun's surface

d) its molten core

Which diagram most accurately shows the cross-sectional shape of the Earth?

a) A

b) B

c) C

d) D

Which statement best explains the apparent sinking of this sailboat?

a) The sailboat is moving around the curved surface of Earth.

b) The sailboat appears smaller as it moves farther away.

c) The change in density of the atmosphere is causing refraction of light rays.

d) The tide is causing an increase in the depth of the ocean.

The Earth's actual shape is most correctly described as

a) a circle

b) a perfect sphere

c) an oblate sphere

d) an eccentric ellipse

Which object best represents a true scale model of the shape of the Earth?

a) a Ping-Pong ball

b) an egg

c) a football

d) a pear

Compared to the weight of a person at the North Pole, the weight of the same person at the Equator would be

a) slightly less, because the person is farther from the center of Earth

b) slightly less, because the person is closer to the center of Earth

c) slightly more, because the person is farther from the center of Earth

d) slightly more, because the person is closer to the center of Earth

Precise measurements of the Earth indicate that its polar diameter is

a) shorter than its equatorial diameter

b) longer than its equatorial diameter

c) the same length as its equatorial diameter

d)

Measurements taken from space show the Earth to be

a) greatest in diameter at the Equator

b) greatest in diameter at the poles

c) a perfect sphere

d) pear shaped

A gravity meter is used to measure the amount of gravitational pull at the Earth's North Pole and at th Earth's Equator. How would these readings of gravitational pull compare? Assume both readings are taken at sea level.

a) The reading would be lower at the North Pole than at the Equator.

b) The reading would be higher at the North Pole than at the Equator.

c) The readings would be the same at the North Pole and at the Equator.

d)

The best evidence that the Earth has a spherical shape is provided by

a) photographs of the Earth taken from space satellites

b) the amount of daylight received at the North Pole on June 21

c) the changing orbital speed of the Earth in its orbit around the Sun

d) the cyclic change of seasons

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