Rotation and Revolution Study Guide

Question 1

the act of spinning around an axis; for example, how the Earth spins on its axis.

Answer 1

Rotation

Question 2

the movement of one object around another; for example, how the Earth travels around the Sun.

Answer 2

Revolution

Question 3

an imaginary line that an object rotates around; for example, the Earth’s axis runs from the North Pole to the South Pole.

Answer 3

Axis

Question 4

the force that pulls objects toward each other; for example, gravity keeps us on the ground and pulls objects down.

Answer 4

Gravity

Question 5

to apply or bring something into use; for example, to exert force means to push or pull with strength.

Answer 5

Exert

Question 6

the curved path that an object takes as it moves around another object in space; for example, the path the Earth takes around the Sun.

Answer 6

Orbit

Question 7

an imaginary line that divides the Earth into the Northern and Southern Hemispheres; it is located halfway between the North and South Poles.

Answer 7

Equator