The measured resistance of the heater is The voltage applied across the heating resistor is The power dissipated by the heating resistor isThe mass of water in cup is Paste a copy of your temperature–time graph here.Was the thermal energy gained by the water greater, the same as, or less than the electrical energy dissipated by the resistorThe heating resistor is rated at 10 ohms and 1 watt. What percentage of the power rating was used during this activity? Why didn’t the resistor burn upWhat are some factors that could account for the percent difference between the experimental and the accepted values for the electrical equivalent of heat
Do a straight-line fit on each of the straight lines of the sawtooth velocity-time graph. Record each slope in the table below, and then average them to find your value for the acceleration due to gravity
How does your value for g (slope of velocity versus time) compare to the accepted value of the acceleration of a free-falling object (g = 9.8 m/s2)? Calculate a percent difference between your measurement and the standard value of g
What factors do you think may cause the experimental value to be different from the accepted value
How does the decrease in gravitational potential energy of a falling ball compare to its increase in kinetic energy
What happens to the total of the gravitational potential energy plus the kinetic energy as a ball falls
What happens to the gravitational potential energy (Energy #1) as the ball falls
What happens to the kinetic energy (Energy #2) as the ball falls
What does the “Total Energy–Time” graph tell you about the total energy of the ball as it falls
What is one reason that some of the energy is lost as the ball falls
What happens to an object when you apply a net force to it?What happens to the motion of an object if it has a constant mass but you change the magnitude of the net force on itPaste the velocity-time graph of your data showing the four runsRecord the mass of the cart that was measured using a scaleCompare the average cart mass with Mscale by calculating a percent difference. Show your workWhy did the slope change at for each runFor Runs #2, #3, and #4, what did you observe about the slope of the Linear Fit as the net force increasedWhat are the units for the slope for each graph? ExplainWhat happens to an object’s acceleration if the net force applied to the object is increased but the object’s mass remains constant
(1 point) What is the precision of the caliper? 0.01 mm (or 0.0005”)(2 points) Record your measurements of the diameter of the quarter in the table below(2 points) Record your measurements of the thickness of the quarter in the table below(0 points) Which coin did you choose for the next part of the experiment(2 points) Record your measurements of the diameter of the coin in the table below6. (2 points) Record your measurements of the thickness of the coin in the table below(1 point) Why is it a good idea to average your measurements(1 point) What is the precision of your diameter measurements(1 point) What is the precision of your thickness measurements(3 points) Use the averages of your measurements and the coin masses listed in the table in the introduction, and calculate the volume and density for the quarter and your coin. Record your results in the table below. Be sure to use the appropriate number of significant digits and correct units(1 point) Is the coin you chose made of the same metal as the quarter? How do you know(1 point) How many quarters would be required to make a stack as tall as your height(1 point) What would the total mass of such a stack be(1 point) Could you use your caliper to measure the thickness of a single sheet of paper? To what accuracy? To what precision(1 point) Devise a scheme to measure the average thickness of the pages of a book more accurately than using the caliper on a single sheet. Describe and implement your scheme
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