Earth's Motion and Simple Machines

Who is the proponent of the Copernican model?

• Ptolemy

• Nicholas Sparks

• Coperrnicaus

• Copernicus

This model states that the Earth is the center of the universe.

• Heliocentric Model

• Super Model

• Geocentric Model

• Copernican Model

This model states that the sun is the center of the universe.

• Heliocentric Model

• Ptolemaic Model

• Geocentric Model

• Super Nova Model

Earth _________ around the sun.

• slides

• revolves

• rotates

• glides

When Earth orbits on its own axis, it is called ______.

• Aphelion

• Rotation

• Revolution

• Perihelion

When Earth takes 365.25 days, it is called a/an _______.

• day

• year

• perihelion

• aphelion

When Earth takes 24 hours, it is called a/an _______.

• day

• year

• aphelion

• peihelion

Earth orbits on its own axis in _________ direction

• northward

• westward

• eastward

• southward

The earth is tilted at an angle of ________ degrees on its axis.

• 25.3 1/2

• 23 1/4

• 23.5

• 25 1/2

Which of the following is a lever?

• jar lid

• ramp

• bolt

• seesaw