Also, Forces were difficult to teach online, mostly in: - Assembling forces - Drawing forces - Balance and Measurement of forces Finally, there is the topic related toAccelerated motion and Newton's second law, that was more difficult in relation with: - Path at steadily accelerated motion - Relationship between mass, force and acceleration - Free fall Target group: students According to the Slovenian physics teachers, the most challenging topics in learning online were the same in teaching online: ● Density, pressure and buoyancy ● Forces ● Accelerated motion and Newton's second law Regarding Density, pressure and buoyancythey found more difficulties in relation to: - Buoyancy - Pressure due to the weight of the stationary fluid - Density and specific gravity - Fluid pressure In relation with Forces they found difficult to understand the concept of Assembling forces and Drawing forces, and Balance of forces; while Accelerated motion and Newton's second lawhas been problematic with regard to: - Relationship between mass, force and acceleration - Path at steadily accelerated motion. 13
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