Determination of g by freefall

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Name: Sarah Barendswaard Abubakr Date: 9/02/09

Teacher: Mr. Briffa Subject: Physics

Year: Y12 Task: Lab report

Determination of gravity by free fall

Introduction

In class we were given an instruction sheet where the aim, apparatus and method where given, from that we had to obtain results and process them.

Aim

To determine the value of acceleration due to gravity

Variables

Independent

Is the variable which we are changing to analyse how it changes the dependant variable; the distance of free fall

Dependant

The variable that we obtain from the results and is changed by the independent; the time taken for the ball to reach the ground

Control

The variables that we have not changed; mass of the ball, gravitational field strength.

Diagram

Apparatus

* Steel ball

* Millisecond timer

* Retort stand

* Release and capture mechanism for the ball

* Metre ruler

Method

The experiment was done as follows:

* The apparatus was set up as shown in the Diagram up to (x) cm

* The steel ball was stuck on the