A student prepares bar charts for a block sliding down a rough incline
PHYSICS · Single correct · AP · Physics 1: Algebra-based · Work Energy and Power · Work Energy and Power
Problem
A student prepares bar charts for a block sliding down a rough incline, treating only the block as the system. The bars are labeled kinetic energy (KE), gravitational potential energy (PEg), elastic potential energy (PEs), and thermal energy (Eth). At the start, the block is purely gravitational potential energy and the incline contains no springs.
Which bar, if any, should be zero in every chart for this system?
(a) The thermal-energy bar
(b) The elastic potential-energy bar
(c) The kinetic-energy bar
(d) The gravitational potential-energy bar