Physics Final Review (Semester 2) Flashcards
A light-year equals what distance
9.46 trillion km, 5.88 trillion miles
Which event began the universe
The Big Bang
A constellation’s changing position in the sky, at the same time of the evening, over a period of several weeks is evidence that
Earth revolves around the Sun
The telescope that solved the problem of color separation was the
reflecting telescope
The Coriolis effect provides evidence that
the Earth rotates
The Coriolis effect is
because the Earth rotates on its axis, circulating air is deflected toward the right in the Northern hemisphere and to the left in the southern hemisphere.
Which telescope detects invisible electromagnetic radiation
A radio telescope
The period between successive full moons is
lunar month
Each of Earth’s standard time zones covers about how many degrees
15
A benefit that 20th and 21st century space programs have brought to an area outside of astronomy is
improved heart pumps and accurate weather predictions
The right combination of temperature, water, and oxygen
supports life on Earth (Goldilocks Zone)
Kepler’s first law states that planets orbit the sun in paths called
ellipses
Young Earth formed a core, mantle, and crust in a process called
differentiation
Early fresh water oceans became salty when
rainwater carried dissolved solid rock to the oceans
The two inner planets most alike in size, mass, and density are
Venus and Earth
Kepler’s third law describes the relationship between the average distance of a planet from the sun and the planet’s
orbital period
Which planet has volcanic regions that may still be active
Mars
Kepler’s second law states that equal areas are covered in equal amount of time as an object
completes an eclipse
What planet has to most complex ring system
Saturn
The early atmosphere developed when many volcanic eruptions released large amounts of gases in a process called
outgassing
Tides on Earth are caused by
Earth’s inertial force and the moon’s gravitational force
When a meteoroid hits Earth, it is called a
meteorite
The idea that the moon’s development began when a large object collided with Earth is called the
giant-impact theory
The moon today looks as it did 3 billion years ago because
it doesn’t have volcanoes
