Hey guys. :) Ok, so here's a summary of a new idea i have for the project. :)
Firstly, the object will be kept constant while the surfaces used will vary through out the experiment. Secondly, to measure friction, we could use a pulley system and attach it to the object. We would have to keep adding weights to the pulley system till the object moves.
So, this should be our procedure:
Step 1. Chose 3 different surfaces (eg: parquet, concrete and terracotta tiles)
Step 2: Chose a flat object preferably less than a kg.
Step 3: Attach a pulley system to the object and make sure weights can be added onto it.
Step 4: Place the object onto the first surface (eg: parquet) and start adding weights until the object moves.
Step 5: Record the weights added.
Step 6: Repeat step 4 and 5 for the other 2 different surfaces.
Step 7: Plot a graph and table. :)
*The frictional force needed to overcome the mass of the object would be measured using the ratio of the weight added and the mass of the object. ---> Ratio: weight added/mass of object
So... For example, the object weighs 100g and for the test on parquet floor requires a 5g weight to be added, then the frictional force is 0.05N.
How does it sound? :)
i hope this might work ! but i still dont get the part where we put the object on a flat surface and attach it to a pulley, than attach the weights to it. Until it starts moving.
ReplyDeleteim not really sure how that part will work. maybe i cant picture it properly so i cant understand :/