Spinning & Circling
This is the imaginary line that passes through the North and South poles that Earth spins around
What is axis?
Seasonal differences are primarily dependent on this specific characteristic of the Earth.
What is the tilt of the Earth on its axis?
This is the force that keeps the Earth in orbit around the sun and the moon in orbit around the Earth.
What is gravity?
This is the tendency of an object to resist a change in its motion.
What is inertia?
Earth completes one of these every 24 hours, spinning from West to East.
What is rotation?
This event occurs twice a year when there are equal amounts of day and night (12 hours each).
What is an equinox?
According to the Law of Universal Gravitation, these two factors determine the strength of gravity between two objects.
What are mass and distance?
These two forces combined are what keep the Earth and moon in their stable orbits.
What are inertia and gravity?
This term describes the movement of Earth around the sun, which takes approximately one year.
What is revolution?
During this season, a hemisphere is tilted away from the sun, causing sunlight to hit a larger area and lowering temperatures.
What is winter?
This is the scientific term for the amount of matter in an object.
What is mass?
What is a force?
Earth’s path around the sun is not a perfect circle, but rather this oval-shaped figure.
What is an ellipse (orbit)?
This is the day of the year when the sun appears highest in the sky for a specific hemisphere.
What is a solstice?
This is the measure of the force of gravity on an object; it would be zero in deep space.
What is weight?
The more of this an object has, the more inertia it possesses, making it harder to start or stop.
What is mass?
While the sun appears to "set" in the West, it is actually this specific movement of Earth that causes it to disappear from view.
What is rotation?
Sunlight hits this imaginary line most directly, resulting in less seasonal change than at the poles.
What is an equator?
This law states that every object in the universe attracts every other object.
What is the Law of Universal Gravitation?
Newton's first Law of Motion states.....
What is ...."an object at rest will stay at rest unless a force moves it."