Energy Analysis 2 - Questions
The Energy Analysis 2 Concept Builder is comprised of 3 Difficulty Levels. Each Difficulty Level presents the same motion scenario with numerical values for mass and height. The amount of mechanical energy dissipated to other forms between locations is also stated. Students must analyze the motion to determine the PE and KE values at two or more specified locations along the path. Numerical values of mass, height, and dissipated energy are chosen at random from a list of permitted values. Given the random nature of question generation, it is difficult to list all the possible combinations of numerical values.
The number of misses are tracked and used to determine a Health Percentage. The Health Percentage is reported once the analysis is complete. Students have the option of repeating the Difficulty Level in order to improve their Health Percentage.
The 3 different difficulty levels are shown below. Teachers are encouraged to view the levels in order to judge which level(s) of difficulty is(are) most appropriate for their classes.
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Energy Analysis 2
NOTE: All numerical values are selectd at random from a list of permitted values. There is thus a large amount of variety in each question presented to students' screens. The value of g that is used is selected by the student when the program starts.
Apprentice Difficulty Level
Question Group 1
At location A, a 36.0-kg sledder has a height of 32.0 m above the bottom of the hill and possesses 980 J of kinetic energy. While coasting to location B at a height of 14.0 m, 1680 J of mechanical energy is dissipated. Determine the missing potential energy (PE) and kinetic energy (KE) values for locations A and B. Use g = 10.0N/kg.
Master Difficulty Level
Question Group 2
At location A, a 42.0-kg sledder has a height of 38.0 m above the bottom of the hill and and a speed of 14.0 m/s. While coasting to location B at a height of 14.0 m, 1240 J of mechanical energy is dissipated. Another 1680 J of mechanical energy is dissipated while moving from B to location C. Determine the missing potential energy (PE) and kinetic energy (KE) values for locations A, B, and C. Use g = 10.0N/kg.
Wizard Difficulty Level
Question Group 3
At location A, a 38.0-kg sledder has a height of 42.0 m above the bottom of the hill and and a speed of 18.0 m/s. While coasting to location B at a height of 22.0 m, 1250 J of mechanical energy is dissipated. Another 1480 J of mechanical energy is dissipated while moving from B to location C. Determine the missing potential energy (PE) and kinetic energy (KE) values for locations A, B, and C and calculate the speed at C. Use g = 10.0N/kg.