# Galileo's Incline plane Help for SAC.

• paul265
In summary, the data collected from this experiment demonstrated that the ratio of the distances traveled by the balls are proportional to the ratio of the squares of the time and independent of their weight.

#### paul265

Galileo's Incline plane... Help for SAC.

Hey everyone i am new here so excuse me if i confuse you all.
I am currently undertaking Galileo's incline plane for my yr.12 assessment and i am a little lost with what i am trying to prove...

the data i collected is as follows.
- The volume of the 2 balls used
- The length of the incline
- The angle used
- Weight of the beaker
- Weight of the beaker after each trial run(once water was placed into the beaker during each trial.)

I simply weighed the beaker. Then simultaneously i released the water clock and the ball to fall down the incline. Then i weighed the beaker after the water was collected after each run at full length, 3/4, 1/2 and 1/4.

My problem lies in what I am trying to figure out.
I don't know what i should figure out.. Whether i should find acceleration.(But how would i find that..) Or whether i should prove the formula that distance is inversly proportional to time squared.

Another thing that i have read on the net but don't understand is the theory that explains that: The difference in ratios of distance traveled is the distance in ratios of time squared.? How can i find time with the weight and distance traveled that i have found from conducted my experiment?

I also realize that i forgot 2 measure the mass of the 2 balls. Although one ball had a Volume of (3.4 * 10^-4) and the other was (4.1887* 10^-4) The heights of the incline are as follows.

full - 84cm
3/4 - 63cm
1/2 - 42cm
1/4 - 21cm (The angle of the incline is 57 degrees although.. the results should be the same with any angle so i guess you can presume the angle is 60 degrees.)

Any help is much appreciated and I am sorry 2 give u all a head ache. THANKS.

Welcome to PF.

I believe that what you are looking to show is that the ratio of the distances traveled by the balls are proportional to the ratio of the squares of the time and independent of their weight which demonstrates that gravity is constant.

Here's a video:

Last edited by a moderator:

Thanks 4 the help, hopefully it all clears up.. And yes that is what I was trying 2 understand. Thanks again. :)

Hey man thanks 4 the video upload although it is not helping my situation...
I am trying to understand how i can obtained time when i have distance traveled and the weight of the beaker (of the beaker with water in it.) Galileo used a water clock instead of a actual clock to demonstrate that distance traveled is inversely proportional to time squared.. although he also used some musical experiment for time... although the internet always refers to the statement that, the difference of the ratios of weight is equal to the difference of ratios of time... which i don't understand. How can i obtain time with the data i represented above?.

Thanks again...

paul265 said:
Hey man thanks 4 the video upload although it is not helping my situation...
I am trying to understand how i can obtained time when i have distance traveled and the weight of the beaker (of the beaker with water in it.) Galileo used a water clock instead of a actual clock to demonstrate that distance traveled is inversely proportional to time squared.. although he also used some musical experiment for time... although the internet always refers to the statement that, the difference of the ratios of weight is equal to the difference of ratios of time... which i don't understand. How can i obtain time with the data i represented above?.

Thanks again...

Just weigh the water that comes dripping out. It is presumably at a constant rate. mass/sec * seconds = mass.

So since the mass/sec is constant across all measurements

Mass1/Mass2 = seconds1/seconds2

When you don't have a quartz time piece and a laser beam trigger handy, it looks to be a pretty good quantitative way to "weigh" the effect of time.

thanks man... i figured it all out found a good website and my results all make scence and i successfully proved the formula... :)

I am ready to write it all up now although I am having trouble wording a good "AIM" together.
could any1 help me with writing up a aim. It will be much appreciated..

All i have at the moment for the aim is as follows.
(To demonstrate the relationship b/w time and distance traveled by an object accelerating through altering angles and masses. )
Any help would be great!

## What is Galileo's Incline plane?

Galileo's Incline plane is a device used to study the motion of objects on an inclined plane. It was developed by Italian scientist Galileo Galilei in the 16th century.

## How does Galileo's Incline plane work?

The Incline plane works by allowing objects to roll down a smooth, angled surface. This allows for the observation and measurement of how objects accelerate and move on inclined planes.

## What were Galileo's contributions to the development of the Incline plane?

Galileo's contributions include the realization that the acceleration of objects on an inclined plane is constant and independent of their mass. He also developed the concept of breaking down a motion into components perpendicular and parallel to the inclined plane.

## What are the practical applications of the Incline plane?

The Incline plane is used in various fields such as physics, engineering, and mathematics to study the motion of objects on inclined surfaces. It is also used in the design and testing of machines and structures that involve inclined planes.

## What is the significance of Galileo's Incline plane in the history of science?

The Incline plane was a key element in Galileo's experiments and observations that led to his groundbreaking laws of motion. It also helped pave the way for the development of calculus and the understanding of the concept of acceleration in physics.