Podcast
Questions and Answers
True or false: A light year is a unit of time.
True or false: A light year is a unit of time.
False (B)
True or false: Venus is hotter than Mercury because it has an atmosphere that traps heat from the sun.
True or false: Venus is hotter than Mercury because it has an atmosphere that traps heat from the sun.
True (A)
True or false: High tide appears twice a day.
True or false: High tide appears twice a day.
True (A)
True or false: Stars produce their own heat and light using natural fusion.
True or false: Stars produce their own heat and light using natural fusion.
True or false: The force of gravity is a repulsive force.
True or false: The force of gravity is a repulsive force.
True or false: The distance traveled by light in one year is called a light year.
True or false: The distance traveled by light in one year is called a light year.
True or false: High tides are created when the earth rotates through bulges and under shallower reigns create low tide.
True or false: High tides are created when the earth rotates through bulges and under shallower reigns create low tide.
True or false: Planets and moons reflect light from them.
True or false: Planets and moons reflect light from them.
True or false: Our nearest star is the sun.
True or false: Our nearest star is the sun.
True or false: Astronomy is the study of objects beyond the earth’s atmosphere.
True or false: Astronomy is the study of objects beyond the earth’s atmosphere.
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Study Notes
Units of Distance
- A light year is a unit of distance, equal to the distance traveled by light in one year.
Tides
- High tide appears twice a day.
- High tides are created when the Earth rotates through bulges.
- Low tide is created when the Earth rotates under shallower regions.
Planetary Temperatures
- Venus is hotter than Mercury.
- Venus' atmosphere traps heat from the sun, making it hotter.
Stars and Planets
- Stars produce their own heat and light using natural fusion.
- Planets and moons reflect light from stars.
Astronomy
- Astronomy is the study of objects beyond the Earth's atmosphere.
Gravity
- The force of gravity is an attractive force.
- All objects, including people, attract other objects with gravity.
- The strength of the gravitational force depends on the mass of the objects.
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