Internal Energy and Temperature — العلوم الصف الثاني الإعدادي لغات

الدرس ده من وحدة «Matter and Energy» فى مادة العلوم لـالصف الثاني الإعدادي لغات على منصة دروسات.

الدرس متاح بالاشتراك: ترم كامل أو المادة لوحدها.

ملخص الدرس

This lesson defines the concept of a system and its three types: open, closed, and isolated. It explains the concept of internal energy as the sum of kinetic and potential energies of all particles in a system. It establishes temperature as a measure of the average kinetic energy of particles, distinguishing it from heat. The lesson then identifies three factors that affect the change in temperature of a body: mass, type of substance, and state of substance. Finally, it introduces the concept of specific heat and its practical applications, such as using water in car radiators for cooling.

هتتعلم إيه فى الدرس ده

• The concept of a system and its types (open, closed, isolated).
• Internal energy as the sum of kinetic and potential energies of particles.
• Temperature as a measure of the average kinetic energy of particles.
• The difference between heat and temperature.
• Factor affecting temperature change: Mass of the substance.
• Factor affecting temperature change: Type of the substance.
• Factor affecting temperature change: State of the substance.
• Specific heat: its definition and values for different materials.