Free Fall
Key Stage 4
Meaning
Free fall is when an object accelerates due to only its weight due to gravity.
About Free Fall
- During free fall the only force acting on an object is its weight due to gravity.
- Objects in a gravitational field accelerate at a rate which is the same as the gravitational field strength.
- All objects in free fall will accelerate at the same rate, regardless of their mass or weight. However, objects do not always free fall due to air resistance. For example a feather and a hammer have the same rate of free fall in a vacuum but in an atmosphere air resistance has a greater effect on the feather so they appear to accelerate at different rates.
- Objects on Earth accelerate during free fall at a rate of 9.8m/s/s.