Gravity
What theory did Einstein introduce to challenge Newton's ideas?
Einstein proposed the theory of relativity.
Gravity depends on what two factors?
Gravity depends on mass and distance.
What is gravity?
Gravity is a type of force.
What would happen to the Earth if its orbit moved farther away from the Sun?
The Sun's gravitational pull on the earth would decrease.
How does the Sun's gravity compare to the Earth's gravity?
The Sun's gravity is stronger than the Earth's gravity. About 28 times stronger.
What effect does the moon's gravity have on the Earth?
The moon's gravity causes the tides on the Earth.
What is the moon's gravity compared to the Earth's?
The moon's gravity is less than the Earth's gravity. About 1/6 as strong.
According to Einstein, what does gravity do?
According to Einstein, gravity bends space and time.
Which has a stronger gravitational pull, an object with more mass or less mass?
An object with greater mass has a stronger gravitational pull.
Why is the Earth's gravity stronger than the moon's gravity?
The Earth has more mass than the moon.
