Practice Quiz

Praxis II General Science: Content Knowledge Exam Prep - Question List

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46.
Which of the following explains why lunar eclipses typically occur only two or three times a year instead of each month?
  1. Earth's axis is tilted relative to the plane of its orbital path around the Sun.
  2. The time it takes Earth to orbit the Sun is much longer than the orbital period of the Moon.
  3. The Moon's orbital path is tilted relative to the plane of Earth solar orbit.
  4. The time it takes for the Moon to orbit Earth is much longer than Earth's rotational period.
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47.
Two high tides occur almost simultaneously on opposite sides of Earth. Which of the following best describes the underlying reason that a high tide occurs on the side of Earth that faces away from the Moon?
  1. The difference in the gravitational pull on either side of Earth.
  2. The drag caused by frictional forces between water and the ocean floor.
  3. The strength of the Sun's gravitational pull on ocean water.
  4. The tilt of Earth's axis relative to the Moon's orbit.
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48.
The rotational period of the Moon exactly equals its orbital period in a phenomenon known as synchronous rotation. This characteristic of the Moon's motion is responsible for which of the following?
  1. The timing of the Moon rise being about 50 minutes later each day.
  2. The path of the Moon across the sky being from east to west.
  3. The full Moon always rising at the approximate time of sunset.
  4. The same side of the Moon always facing Earth.
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49.
According to prevailing theory, which of the following led to the formation of the Moon?
  1. A minor planet orbiting between Mars and Earth was captured by Earth's gravitational field.
  2. Debris was ejected from Earth following a collision with an interplanetary body.
  3. A massive meteor with an elliptical orbit that passed near Earth was pulled in by Earth's gravity.
  4. Clouds of gas and dust circling the Sun coalesced into the planets and their satellites at the same time.
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50.
Which of the following resources can be considered renewable or nonrenewable depending on how it is managed?
  1. Metallic ore deposits
  2. Solar energy
  3. Freshwater aquifers
  4. Wind power
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