Free Fall Simulator
Drop objects from any height on Earth, the Moon, Mars, or Jupiter and watch gravity at work — see velocity and distance update in real time.
Frequently Asked Questions
What is free fall?
Free fall is motion under the sole influence of gravity, with no air resistance. All objects in free fall near Earth accelerate downward at 9.81 m/s² regardless of their mass — a feather and a bowling ball fall at the same rate in a vacuum.
How is free fall different from other types of motion?
In free fall there is only one force acting: gravity. This creates constant acceleration, meaning velocity increases steadily over time (v = g·t) while the distance fallen grows quadratically (d = ½·g·t²).
Why do objects fall slower on the Moon?
The Moon has much less mass than Earth, so its gravitational pull is weaker — about 1/6th of Earth's (1.62 m/s² vs 9.81 m/s²). An object dropped from the same height will take about 2.5 times longer to land on the Moon.
What is the formula for free fall?
Velocity at time t: v = g·t. Distance fallen: d = ½·g·t². Time to fall height h: t = √(2h/g).
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