A question of physics One (National High School Exam) caused controversy this Sunday (10). Physics teachers at Anglo Course and the Elite Education Network pointed out that question 124 of the green test can be canceled.
The question brings as context a electric coffee maker of 700 W of power that boiled half a liter of water in three minutes. The student needed to calculate the energy efficiency of the object. See the question:
The Anglo Course physics team commented that there is a conceptual flaw. “When you calculate the power of the coffee maker with the data in the statement, we find a value of 933 W. This value is above the total power provided by the statement of the 700 W coffee maker”, which would be physically impossible.
The teacher Bruno Sáfrom Elite Rede de Ensino, reinforced: “the power of the coffee maker (933 W approximately) ends up having a value greater than the total/nominal power supplied (700 W), which goes against physical concepts.”
Despite this issue, the physics test was and brought current themes. O difficulty level was average.
CNN will have unofficial Enem feedback
A CNN will have the . The correction will be carried out by SAS Educação in partnership with the Ari de Sá school, in Fortaleza (CE), and will be available on our portal after the end of the test.
