Gravitation and Gravitational Acceleration (g) Explained
Gravity is the force of attraction between all objects with mass. Gravitational acceleration (g) is the acceleration imparted by gravity on falling objects
TL;DR: Gravity is the force of attraction between all objects with mass. Gravitational acceleration (g) is the acceleration imparted by gravity on falling ob…
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Gravitation and Gravitational Acceleration (g): Gravity is the force of attraction between all objects with mass. Gravitational acceleration (g) is the acceleration imparted by gravity on falling objects
Gravitation and Gravitational Acceleration (g) Explained Simply
Gravity is the force of attraction between all objects with mass. Gravitational acceleration (g) is the acceleration imparted by gravity on falling objects This is a key Physics concept for 10-12.
Frequently Asked Questions
Why is the Moon not pulled into Earth if gravity acts on it?
The Moon is in orbit around Earth. Gravity pulls it toward Earth, providing the centripetal force needed for circular motion. The Moon's orbital velocity is just right so it falls around Earth rather than into it.
How is g different at different latitudes?
Earth bulges at the equator and is flatter at the poles. At the equator, you are farther from Earth's center, so g is lower (9.78 m/s²). At the poles, you are closer, so g is higher (9.83 m/s²). Also, Earth's rotation creates a centrifugal effect that is maximum at the equator.
Can escape velocity be exceeded?
Yes. Escape velocity is the minimum speed to escape gravity if directed correctly. Speeds exceeding escape velocity result in faster recession from the body. Escape velocity applies to objects starting from a body's surface or orbit; the direction matters for achieving orbit vs escape.