10 Questions
True or false: A light year is a unit of time.
False
True or false: Venus is hotter than Mercury because it has an atmosphere that traps heat from the sun.
True
True or false: High tide appears twice a day.
True
True or false: Stars produce their own heat and light using natural fusion.
True
True or false: The force of gravity is a repulsive force.
False
True or false: The distance traveled by light in one year is called a light year.
True
True or false: High tides are created when the earth rotates through bulges and under shallower reigns create low tide.
True
True or false: Planets and moons reflect light from them.
True
True or false: Our nearest star is the sun.
True
True or false: Astronomy is the study of objects beyond the earth’s atmosphere.
True
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.
Test your knowledge on celestial bodies and their unique characteristics, including light years, tides, atmospheric effects, and the energy production of stars.
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