Vocabulary Book Flashcard #4 2025-2026

Front

What is the path described by one body in its revolution about another?

Back

orbit

Front

What is the time of light between one night and the next?

Back

day

Front

What is the period of about 365 1/4 solar days required for one revolution of the earth around the sun?

Back

year

Front

What is the time from dusk to dawn when no sunlight is visible?

Back

night

Front

What is a straight line about which a body or a geometric figure rotates or may be supposed to rotate?

Back

axis

Front

What is the term for the natural satellite that orbits the Earth?

Back

moon

Front

What is the term for the daily cycle of light and darkness caused by the Earth's rotation?

Back

day-night cycle

Front

What is the imaginary line that runs from the North Pole to the South Pole?

Back

axis of rotation

Front

What is the term for the time it takes for the Earth to complete one full rotation on its axis?

Back

24 hours

Front

What is the term for the gravitational pull that keeps the planets in orbit around the sun?

Back

gravity