Movements in Space

1

100

When a satellite always keeps the same side toward the object it is orbiting, the satellite is ________.

tidally locked

200

Which of the following is the primary cause of seasons on Earth?

Earth's axial tilt as it revolves around the sun

300

The spin of a body on its axis is called ________.

rotation

400

Which of the following is the primary cause of tides on Earth?

the moon's revolution around Earth

500

the point in the orbit of a planet or other orbiting body where it is farthest from the Sun or the body around which it revolves

aphelion

2

100

Which term describes any object that revolves around a larger object in space?

satellite

200

Which answer best states Newton's law of gravity?

The attractive force of gravity between two objects is proportional to the product of their masses and inversely proportional to the square of the distance between them.

300

The International Space Station is an example of ________.

an artificial satellite

400

At which position in Earth's orbit is Earth closest to the sun?

perihelion

500

a streak of light in the sky that forms when a piece of rock from space burns up in Earth's atmosphere (related term: shooting star)

meteor,

3

100

Tides on Earth are influenced by ________.

both the moon and the sun

200

During which event do the hours of daylight on Earth equal the hours of night?

equinox

300

According to Kepler's third law of planetary motion, ________.

the square of a planet's orbital period is directly proportional to the cube of its average distance from the sun

400

According to Kepler's first law of planetary motion, ________.

a planet's orbit is elliptical, with the sun at one focus of the ellipse.

500

a piece of rock or metal from space that strikes Earth's surface

meteorite

4

100

At which position in Earth's orbit is Earth farthest from the sun?

aphelion

200

What event occurs when one celestial object or that object’s shadow obscures the view from Earth?

eclipse

300

What happens during a lunar eclipse?

The moon is in shadow because Earth is between the moon and the sun.

400

Which of the following is not a phase of the moon?

waning quarter

500

During which event is Earth's axis tilted either farthest away from or closest to the sun?

solstice