🌍 Earth’s Motion
This is the term for Earth spinning on its axis.
What is rotation?
What causes seasons on Earth?
Earth’s tilt
What does the Moon orbit?
Earth
What force causes tides?
Gravity
What force keeps planets, moons, and objects in motion in space?
Gravity
This is the term for Earth moving around the Sun.
What is revolution?
When the Northern Hemisphere is tilted toward the Sun, what season is it?
What is summer
What causes the phases of the Moon?
The Moon’s position relative to Earth and Sun
Which object has the biggest effect on Earth’s tides?
The Moon
What determines the strength of gravity?
Mass and distance
What causes day and night on Earth?
What is Earth’s rotation?
Why is it warmer in summer?
More direct sunlight and longer days
Does the Moon make its own light?
No, it reflects sunlight
Why does the Moon affect tides more than the Sun?
It is closer to Earth
Which has more gravity: the Sun or Earth? Why?
The Sun, because it has much more mass
Why does Earth stay in orbit around the Sun?
What is the gravitational force between Earth and the Sun.
What type of energy from the Sun heats Earth?
Solar (radiant) energy
What phase is the Moon in when it is completely lit?
Full Moon
How does distance affect gravity?
Closer objects have a stronger gravitational pull
How does energy from the Sun reach Earth?
Through electromagnetic waves
If Earth stopped rotating but still revolved around the Sun, what would happen?
What is one side would have constant daylight and the other constant darkness.
If Earth had no tilt, what would happen to seasons?
There would be no seasons
Why don’t we see all phases of the Moon in one night?
Because the Moon moves slowly in its orbit around Earth
If the Moon moved farther away from Earth, what would happen to tides?
Tides would be weaker
Explain why the Moon orbits Earth instead of the Sun, even though the Sun has more gravity.
The Moon is much closer to Earth, so Earth’s gravity has a stronger effect on it locally.