Problem

Can quarter and feather fall at the same speed?

Our hypothesis

Our hypothesis is quarters and feathers can not fall at the same speed, because quarters has more mass than the feathers, and the quarters will has more gravity, so the quarters will fall faster than the feathers.

What is Gravitation?

Gravitation is a general term describing the attractive influence that all objects with mass exert on each other. It is responsible for keeping the Earth and the other planets in their orbits around the Sun; for keeping the Moon in its orbit around the Earth, for the formation of tides; and also if there has no gravitation, every thing will be floating around.

What is Motion?

Motion means a continuous change in the location of a body. Change in motion is the result of applied force. Motion is typically described in terms of velocity, acceleration, displacement, and time. An object's momentum is directly related to the object's mass and velocity, and is conserved within a system, as described by the law of conservation of momentum.

Falling Object

Materials for our experiment

• Feather

• Ruler

• Timer

• Quarter

Our experiment procedure

First, we found a quarter, a feather, a timer and a ruler.

Second, we use the ruler and drop the quarter and feather at a same height, and than we use the timer test out the speed from quarter fall down and feather fall down.

Third, we will write down all the result, and than make a chart for it.

Those result are :

Height : 12in. 22.in 30in.

Feather : 1sec. 1sec. 1.5sec.

Qurter : 0.5sec. 0.7sec. 0.9sec.