Answers SLPS-2001310-EarthSpace B -GFClassification of Living Things

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Why did scientists struggle for thousands of years to accurately describe the solar system?

Venus has phases like the moon.

Many people spoke Italian and did not understand Latin.

The planets appeared to move backward in the sky occasionally.

Scientists could not explain why the Sun appeared to rise and set every day.

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The orbital period of a satellite is 2 × 106 s and its total radius is 2.5 × 1012 m. The tangential speed of the satellite is m/s. (Round to the nearest whole number, do not add any punctuation.)

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What occurs when Earth’s shadow covers the moon?

neap tide

spring tide

solar eclipse

lunar eclipse

What force acts between Earth and the moon?

gravity

mass

motion

newtons

Which causes objects in the universe to resist a change in speed or direction?

gravity

inertia

motion

orbit

Leo drew a force diagram to represent a satellite in orbit around Earth.

make the Fg vector longer

change the vector labeled Fair so it is labeled Fp

add an Fp vector at the center and pointing left

remove the Fair vector

In which direction does Earth rotate?

eastward around its axis

in an ellipse around the Sun

counterclockwise around the Sun

from north to south around its axis

Which remains the same as the distance of an object from Earth changes?

size of the force

strength of gravity

mass of the object

weight of the object

Cecelia dropped a ball from a height of 2 m. The ball fell in a straight path down to the ground.

tossing it horizontally at a slower speed

tossing it horizontally at a faster speed

dropping it from a shorter distance

dropping it from a greater distance

Which is a factor that keeps Earth in orbit around the Sun?

the orbital path of the moon

the gravitational pull of the Sun

the continuous motion of the universe

Earth’s changing speed and direction

What term describes the moon’s path around Earth?

eclipse

phase

revolution

rotation

Why are there two high tides a day about 12 hours apart from each other?

Earth revolves around the Sun once during that time.

Earth rotates entirely on its axis once during that time.

The moon revolves around Earth once during that time.

The moon’s orbit is in line with Earth’s orbit twice a day.

Whose data did Kepler use to construct the laws of planetary motion?

Aristarchus’s

Aristotle’s

Brahe’s

Copernicus’s

Which discovery did Galileo make to support the theory that the planets, including Earth, orbit the Sun?

Venus has phases.

The orbits of the planets are elliptical

Earth’s rotation causes the Sun to rise in the sky.

The planets move faster when they orbit closer to the Sun.

Which statement correctly describes terrestrial planets?

They are made of mostly rock.

They are made of gases.

They are small objects of ice and dust.

They are very large compared to other planets.

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