Astronomy Final Exam Study Guide

Which retains heat longer- larger planets or smaller planets- and why?

• Larger planets, because they have more mass and retain heat longer.

• Smaller planets, because they cool down more slowly.

• Both retain heat equally.

• Neither retains heat.

Earth has the strongest magnetic field among the terrestrial planets because:

• It has a large, liquid iron core and rapid rotation.

• It is closest to the Sun.

• It has the thickest atmosphere.

• It has the most moons.

The 4 major geological processes are:

• Erosion, weathering, deposition, and lithification

• Volcanism, tectonics, erosion, and impact cratering

• Sedimentation, folding, faulting, and metamorphism

• Compaction, cementation, melting, and cooling

Which of the following are factors that affect a planet’s geological history?

• Distance from the Sun, size of the planet, presence of an atmosphere

• Color of the planet, number of moons, speed of rotation

• Shape of the orbit, presence of rings, surface temperature

• Magnetic field strength, number of craters, tilt of axis

Which of the following is an effect that atmospheres can have on a planet?

• Regulate surface temperature

• Increase planetary mass significantly

• Cause planets to emit their own light

• Prevent all meteor impacts

• Eliminate gravity

Why do Mercury & the Moon not have greenhouse effect temperature difference?

• Because they have thick atmospheres

• Because they have no atmosphere

• Because they are too far from the Sun

• Because they are made of ice

Ozone is a gas that protects us by:

• Absorbing harmful ultraviolet radiation from the sun

• Providing oxygen for breathing

• Causing acid rain

• Increasing greenhouse gases

The __________ effect deflects winds to create circulation cells.

• Coriolis

• Bernoulli

• Greenhouse

• Doppler

Factors that can cause long term climate change include:

• Volcanic eruptions, changes in solar radiation, and plate tectonics

• Daily weather patterns

• Seasonal changes

• Short-term ocean currents

Venus is so much hotter than Earth because:

• It is closer to the Sun and has a thick atmosphere of carbon dioxide

• It rotates faster than Earth

• It has more volcanoes than Earth

• It is farther from the Sun than Earth