Key Idea.
Section 1
Gravity Pulls Objects Down
When an object is dropped, it falls downward. This happens because of a force called gravity. Gravity is a special non-contact force that acts between the Earth and objects.
Even though nothing is touching a falling apple, Earth is pulling it. Gravity always pulls objects toward the center of the Earth. This constant pull is what keeps us on the ground and causes the train to fall if the magnets are turned off.
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Section 1
Gravity Pulls Objects Down
When an object is dropped, it falls downward. This happens because of a force called gravity. Gravity is a special non-contact force that acts between the Earth and objects.
Even though nothing is touching a falling apple, Earth is pulling it. Gravity always pulls objects toward the center of the Earth. This constant pull is what keeps us on the ground and causes the train to fall if the magnets are turned off.
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter