Introduction to Astronomy

What idea did Copernicus support?

• The heliocentric model of the solar system

• Free-fall time is independent of mass.

• Physical laws are identical everywhere.

• The conservation of angular momentum.

What idea did Galileo support?

• The heliocentric model of the solar system

• Free-fall time is independent of mass.

• Physical laws are identical everywhere.

• The conservation of angular momentum.

What idea did Newton support?

• The heliocentric model of the solar system

• Free-fall time is independent of mass.

• Physical laws are identical everywhere.

• The conservation of angular momentum.

Why did the geocentric model of the solar system fail?

• The model's predictions were too accurate.

• The model's predictions did not match the positions of the planets.

• The order of the planets was incorrect.

• The placement of the stars was incorrect.

In the vacuum of space, which will fall faster, a feather or a hammer?

• Both objects will fall with the same speed.

• The feather

• The hammer

• Science does not know the answer.

Tags

NGSS.MS-PS2-4

Celestial orbits are in the shape of a(n) ...

• ellipse

• circle

• sphere

• Each object orbits in a random way.

A(n) _____ is an object that enters the Earth's atmosphere and burns up, causing a streak of light.

• meteor

• meteorite

• asteroid

• comet

A(n) _____ is an object that survives its journey through Earth's atmosphere and lands on the ground.

• meteor

• meteorite

• asteroid

• comet

A(n) _____ is a rocky object orbiting the sun, larger than a meteoroid but smaller than a planet.

• meteor

• meteorite

• asteroid

• comet

Tags

NGSS.MS-ESS1-3

A(n) _____ is a small, icy object orbiting the sun, often with a visible tail of gas and dust.

• meteor

• meteorite

• asteroid

• comet