This persnickety number determines the strength of magnetic fields. It figures in everything from motors and generators to ...

Cats falling from super-high heights have a greater chance of survival than low-rise falls. That depends on two things: air resistance and apparent weight.

In the absence of air resistance, an object falling near the surface of the Earth should trace out a parabola, with an acceleration of 9.8 m/s 2 downward.

The falling drop increases speed until the resistance of the air equals the pull of gravity, at which point the drop begins to fall at a constant speed, its terminal velocity.

Experiments to measure the acceleration of a falling object There are various methods to measure acceleration due to gravity. At Higher level all rely on one of the equations of motion.

Thus, falling from high floors should have more unpleasant consequences than from low floors. But this way of thinking about the feline free-fall ignores air resistance.