On Monday I rode a RipStik up a gentle slope, turned around, and came back down the slope.
___________________ What is the name of the shape formed by the curve on the graph?
___________________ Between zero and ten seconds, what is happening to my velocity?
___________________ At exactly ten seconds, what is my velocity according to the graph?
___________________ Between ten and twenty seconds, what is happening to my velocity?
The data in the table and graphs are from a lab three ball dropping experiment.
_______________ _________ According to the data and graphs, what is the acceleration of gravity?
A marble with a mass of 5 grams sits on a banana leaf 10 centimeters vertically above the table. The acceleration of gravity g of 980 cm/s².
_________ __________ Calculate the Gravitational Potential Energy of the marble.
_________ __________ At the bottom of the banana leaf the same marble is moving at a velocity of 100 cm/s. Calculate the Kinetic Energy of the marble.
______________ As a percentage of the original Gravitational Potential Energy, how much energy was lost to friction and other sources of energy loss?
Mathematical models
_____
Identify by the letter which of the mathematical relationships on the graph represents the time versus distance relationship for a RipStik moving at a constant linear velocity with no acceleration.
_____
Identify by the letter which of the mathematical relationships on the graph represents the time versus distance relationship for a ball falling under the constant acceleration of gravity g.
_____
Identify by the letter which of the mathematical relationships on the graph represents the height versus velocity relationship for a marble rolling from a height h down a banana leaf and onto a flat table.
The graph shows pulley data gathered by a student in physical science.
Plot the data provided in the table on the graph below and draw a line through the points.
____________ Based on the data, what is the Actual Mechanical Advantage for the pulley system?
____________ The pulley system had four load lines. What is the Ideal Mechanical Advantage?
____________ Use the preceding two questions to calculate the efficiency of the pulley system.
______________ What was the likely cause of the efficiency being less than 100%?
Write out Newton's first law.
Give a mathematical statement of Newton's second law.
Write out Newton's third law.
__________ __________ A RipStik was accelerated using a force of 15 Newtons. The mass of the RipStik and the rider was 75 kilograms. Calculate the acceleration of the RipStik.
Volume V = length l × width w × height h
mass m = density ρ × Volume V
distance d = velocity ѵ × time t
Gravitational Potential Energy GPE = mgh
acceleration of gravity g = 980 cm/s²
Kinetic Energy KE = ½mѵ²
momentum = mass m × velocity ѵ
Force F = mass m × acceleration a