Exploring Gravity, Mass, Weight and Air Resistance... 'Does a larger 'Weight' Increase the Speed/Gravitational Pull? Will the Heavier Items Land First?'
The answer was surprisingly... NO! The gravitational pull remains the same. After investigation, we discovered that air resistance worked against the force of weight and gravity to slow the object's speed of landing! We worked with sheets of paper, rolled paper, tennis balls, hockey balls and other heavier objects with the same surface area (air resistance.) The hockey, tennis and scrunched paper all landed at the same time, despite having different 'weights'. Importantly, we learnt that weight is a force that is measured in newtons and works hand in hand with the force of gravity. Mass is measured in kilograms or grams and is the amount of matter or 'stuff' it contains. The more matter, the greater the mass! This is why, when the force of gravity is low (like in space), a person can feel weight-less. In space, the person's mass would still be the same as they would still be made of the same 'stuff'! Some of us then felt that 'Weight-Watchers' needed to be re-named 'Mass-Watchers' - very interesting!