Flashcardizz: Earth's Movements and Forces Questions

Front

What is the imaginary line that passes through Earth's center and the North and South poles called?

Back

Axis

Answer explanation

The imaginary line that runs through the Earth's center and connects the North and South poles is called the Axis. It is essential for understanding Earth's rotation, unlike the Equator, which is horizontal.

Front

What term describes the spinning of Earth on its axis?

Back

Rotation

Answer explanation

The term that describes the spinning of Earth on its axis is 'Rotation'. This is distinct from 'Revolution', which refers to the Earth's orbit around the Sun.

Front

What is the path called that a body follows as it travels around another body in space?

Back

Orbit

Answer explanation

The path a body follows as it travels around another body in space is called an 'orbit'. This term specifically describes the curved trajectory that celestial objects take due to gravitational forces.

Front

How many solstices occur in a year?

Back

Two

Answer explanation

There are two solstices each year: the summer solstice, when the sun is at its highest point, and the winter solstice, when it is at its lowest. Therefore, the correct answer is two.

Front

What is the name for the two days of the year on which neither hemisphere is tilted toward or away from the sun?

Back

Equinox

Answer explanation

The two days of the year when neither hemisphere is tilted toward or away from the sun are called equinoxes. During these times, day and night are approximately equal in length.

Front

What force attracts objects toward each other due to their masses?

Back

Gravity

Answer explanation

Gravity is the force that attracts objects toward each other based on their masses. It is responsible for keeping planets in orbit and causing objects to fall to the ground.

Front

What scientific law states that every object in the universe attracts every other object?

Back

Law of Universal Gravitation

Answer explanation

The Law of Universal Gravitation states that every object in the universe attracts every other object with a force proportional to their masses and inversely proportional to the square of the distance between them.

Front

What is the tendency of an object to resist a change in its motion called?

Back

Inertia

Answer explanation

The tendency of an object to resist changes in its motion is called inertia. It describes how an object at rest stays at rest and an object in motion stays in motion unless acted upon by an external force.

Front

What is a solstice?

Back

When the sun is at its most significant distance from the celestial equator

Answer explanation

A solstice occurs when the sun reaches its highest or lowest point in the sky at noon, marking the most significant distance from the celestial equator, resulting in the longest and shortest days of the year.

Front

If Earth's axis were not tilted, what would be the effect on the occurrence of solstices and equinoxes?

Back

There would be no solstices or equinoxes

Answer explanation

If Earth's axis were not tilted, there would be no variation in sunlight throughout the year, eliminating the conditions necessary for solstices and equinoxes. Thus, the correct answer is that there would be no solstices or equinoxes.