Physics science fair project idea12/29/2023 "Theta" is the angle, "opposite" is the ramp height, and "hypotenuse" is the ramp length. The equation used to solve the angle of the ramp is sin(theta)=opposite/hypotenuse. If you know the height of the ramp and the length of the ramp, you do not actually need a protractor to figure out the angle of the ramp. If you want an advanced challenge, you can try to calculate the angle of the ramp.How does this change how well the tub slides down the ramp compared to a tub that has not been changed? Instead of changing the surface of the wood, you can try changing the bottom of the tub by rubbing it with oil or covering it with sandpaper.How does this change how the tub slides down the wood compared to sliding down wood that is not covered with oil or foil? Cover the surface of one piece of wood with oil or foil to decrease the friction. How does the increased friction on the board affect how well the tub slides down it? Conduct the same experiment with two dry wooden boards and increase the friction of one of the boards by covering it with sandpaper.How does the friction compare between the dry and icy surfaces based on your average slip angles and average slip heights? When you are done testing, look at your results and try to draw some conclusions.Calculate the average slip angle and the average slip height for each condition (the dry wood and the icy wood).It will be easier to keep track of your results if you write them down in your lab notebook in a data table like Table 1 below. Repeat steps 2–5 for at least three separate trials for each surface, and record your results. For any experiment, it is important to do multiple trials to assure that your results are consistent.Conduct the same experiment (steps 2–5) with the icy wood.At the angle that the tub first moves, measure the height of the book pile with the meter stick (in centimeters ) and the angle of the ramp with the protractor (in degrees ).Make your changes in height small enough so that you can accurately determine the ramp height and ramp angle just high enough to allow the tub to slip down the ramp.If it does not slip, remove the tub, raise the ramp height and try again.If it slips down the ramp, remove the tub, lower the ramp height and try again.Determine the ramp height and ramp angle at which the tub of sand first slips down the ramp.Build a ramp using several books and the piece of wood.Fill the plastic tub with sand and close the lid.
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