Scienc mid term exam

What is inertia?

• Inertia is the force that causes an object to move.
• Inertia is the speed of an object in motion.
• Inertia is the energy stored in an object at rest.
• Inertia is the resistance of an object to changes in its motion.

How does gravity affect inertia in terms of orbit?

• Gravity keeps objects in orbit by balancing their inertia.
• Gravity has no effect on the speed of orbiting objects.
• Inertia causes objects to fall into the sun.
• Inertia is stronger than gravity in space.

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NGSS.MS-ESS1-1

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What two forces keep planets in orbit?

• Gravitational force and inertia
• Centrifugal force and friction
• Magnetic force and tension
• Electromagnetic force and pressure

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NGSS.MS-ESS1-2

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List all the terrestrial planets.

• Mercury, Venus, Earth, Mars
• Jupiter, Saturn, Uranus, Neptune
• Earth, Mars, Pluto, Ceres
• Mercury, Venus, Earth, Titan

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NGSS.MS-ESS2-1

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What is the geocentric model?

• The geocentric model is a theory that places the Moon at the center of the solar system.
• The geocentric model is an astronomical theory that places the Earth at the center of the universe.
• The geocentric model states that all celestial bodies revolve around Mars.
• The geocentric model suggests that the Sun is at the center of the universe.

Why did astronomers create this model?

• To understand celestial phenomena and predict astronomical events.
• To study the surface of Mars in detail.
• To develop a new telescope design.
• To create a new star classification system.

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Explain how the Universe is similar now to how it was right after the Big Bang.

• The Universe is contracting and will eventually collapse, contrary to its expansion after the Big Bang.
• The Universe is still expanding and contains fundamental particles, similar to the conditions right after the Big Bang.
• The Universe is filled with only dark matter and no fundamental particles.
• The Universe is static and unchanging, unlike the early moments after the Big Bang.

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List any planet capable of sustaining life.

• Earth
• Jupiter
• Venus
• Mars

List the planets in order from closest to the sun to farthest from the sun. Write the entire planet name, not just the first letter.

• Earth, Mars, Jupiter, Saturn, Venus, Mercury, Neptune, Uranus
• Venus, Earth, Mars, Jupiter, Saturn, Mercury, Uranus, Neptune
• Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
• Mercury, Venus, Earth, Mars, Jupiter, Saturn, Neptune, Uranus

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NGSS.MS-ESS1-3

Which planet orbits the sun the fastest?

• Earth
• Mars
• Venus
• Mercury