Which is heavier, a ton of feathers or a ton of lead?
They're both the same. The feathers would take up a lot more space though! Feathers have a lower density than lead (i.e. for the same volume, feathers are less heavy). In practice, if you drop a tonne of feathers and a tonne of lead from the same height at the same time (on Earth), the feathers will be pushed around more by air resistance and will take longer to reach the ground. But if you did that experiment somewhere without air resistance (e.g. another planet) you'd see that they would take the same amount of time, because they would have the same weight (and mass).
FN
Related Physics GCSE answers
All answers ▸For a vehicule with a constant acceleration (5 m/s^2) starting at rest, how long would it take to travel 1 km?
As a student rubs his feet along the carpet in his living room, he becomes charged. After this he places his hand on a metal radiator and receives an electric shock. Explain what charge the student obtains, why, and why he receives a shock.
Write the equations of motion for constant acceleration and describe each term involved. Explain how to apply these equations of motion to calculate the horizontal and vertical components of a projectile moving under the force of gravity only.
Describe the changes in forces experienced by a parachutist after they have started falling