Chapter 5. Mechanical energy. Gendenshtein.
Physics, grade 7. Gendenshtein L.E., Kaidalov A.B. textbook, 2012
Contents
- Chapter 1. Physics and the physical methods of studying nature.
-
Chapter 2. The structure of matter.
- 5. Atoms and molecules.
- Sizes of molecules and atoms.
- 6. Motion and interaction of molecules.
- Brownian motion.
- 5. Atoms and molecules.
- Chapter 3. Motion and interaction of bodies.
-
Chapter 5. Work and energy
- 24 Simple mechanisms
- Centre of gravity
- 24.1 Pulleys
- 25. Lever
- 26. Mechanical work. Power.
- 28. Mechanical energy.
- 24 Simple mechanisms
§24 Simple machines
Center of gravity
Pulleys:
It is important to remember that the main difference between a movable pulley and a fixed one is best
reflected in their names, since the movable pulley moves together with the load, while the fixed one does not.
Static pictures in textbooks do not always clearly demonstrate this fact.
§25 Lever.
§26 Mechanical work. Power
Mechanical work
§28 Mechanical energy
Kinetic and potential energy.
Transformation of energy on the example of a spring pendulum, a mathematical pendulum and a Maxwell pendulum
Physics, grade 7. Gendenshtein L.E., Kaidalov A.B. textbook, 2012
Contents
- Chapter 1. Physics and the physical methods of studying nature.
-
Chapter 2. The structure of matter.
- 5. Atoms and molecules.
- Sizes of molecules and atoms.
- 6. Motion and interaction of molecules.
- Brownian motion.
- 5. Atoms and molecules.
- Chapter 3. Motion and interaction of bodies.
-
Chapter 5. Work and energy
- 24 Simple mechanisms
- Centre of gravity
- 24.1 Pulleys
- 25. Lever
- 26. Mechanical work. Power.
- 28. Mechanical energy.
- 24 Simple mechanisms
Useful links
Youtube channels
Article author: Andrei Olegovich