Physics

This is a finding on the topic that we are doing on, on which other people have tried out.

The person tested on vegetable oil, baby oil, Vaseline and Softsoap. He built a ramp and separated the substances into four different containers, in which a disposable paintbrush was placed. He had a stopwatch accurate to the hundredth of a second and distilled white vinegar to clean the substance off the ramp after the testing. He then slid a metal block down the ramp and recorded the timing.

These are the average times it took the block to read the end of the ramp with each lubricant: Softsoap = 0.63 sec. baby oil = 0.88 sec. vegetable oil = 1.01 sec. Vaseline = 1.22 sec.

The guy learned that because a substance is dense it does not mean that it cannot lubricate. One problem he had during the experiment was the cleaning of the ramp. He used a soap to clean the ramp initially, then realised that it was unfair as one of the substances was a type of soap too. So, he changed to using distilled white vinegar

The steps he took were as follows:
1)Statement of purpose and hypothesis
2)Methodology
3)Analysis of data
4)Summary and conclusion
5) Application

Lower Secondary Science Research Project
Proposal Form


Group Name:Dont09 Class: 1B

Name of Members and Signatures:
1)Olivia
2)Nadiah
3)Darren Low(leader)
4)Ting Fang

Project Title:
-Which household items are best for lubricating metal?


Problem Question:

-Which household items are best for lubricating metal?




Hypothesis:
Butter is the best substance for lubricating butter




Web-Address (Url) of Project Blog:
-Dont09.blogspot.com




Expected date of research completion:


Project Mentor and Signature:


Apparatus and Materials Needed:

-Oil(baby)
-butter(normal)
-powder(baby)
-soap(hand)
-fixed pulley
-retort stand
-string
-weight hanger
-weights[5g,10g,20g,50g]
-Smooth metal surface
-wooden plank
-plastic sheet


Experimental Procedure Setup:
Labels:
Substance 1-baby powder
Substance 2-soap
Substance 3-butter
Substance 4- Baby Oil

Step 1:place plastic sheet on the table.
Step 2:Place wooden plank on the plastic sheet
Step 3:Place metal surface on top of the wooden plank
Step 4:tie one end of the string to the metal surface
Step 5:Tie the other end of the string to the pulley connecting to the retort stand.
Step 6:pull the string on the pulley and make a loop hole with it, hang the weight hanger on it and place the weight(50g) on it.
Step 7:then, apply substance 1 ont the top surface of the wooden plank and the underside of the metal surface.
Step 8:Repeat step 6 with weights 20g,10g and 5g
Step 9:decrease the weights til the metal surface stops moving.
Step 10:Repeat step 7,8 and 9 with substance 2,3 and 4.
Stp 11:Record the amount of weight needed for each substance and compare the results
Step 10:write a conclusion and check if it supports your hypothesis(the lesser weight needed is the best household item)



Independent Variable:
-Household items

What you observe:
-observe the different amount of weight used to move the metal surface.

Controlled Variables (Constants):
-position of pulley
-metal surface
-length of string
-constant amount of substance used
-similar mass of substance applied on surface.