In Vietnam, what is kinetic energy? What is the formula for calculating kinetic energy? What learning outcomes are required for kinetic energy content in the 10th-grade Physics curriculum?

In Vietnam, what is kinetic energy? What is the formula for calculating kinetic energy?

* What is kinetic energy?

Kinetic energy is the energy that an object possesses due to its motion. kinetic energy depends on the object's mass and velocity.

* Formula for calculating kinetic energy:

Wk = 1/2 mv^2 (J)

Where:

- m is the mass of the object (kg),

- v is the velocity of the object in motion (m/s).

- Wk is the kinetic energy, expressed in joules (J).

From the kinetic energy formula, we can calculate:

- The velocity of the object:

- The mass of the object:

* Some notes on kinetic energy:

- kinetic energy is a scalar quantity and always has a positive value.

- Velocity is relative, depending on the frame of reference, so kinetic energy is also relative. Typically, when the frame of reference is not mentioned, it is understood that kinetic energy is determined with respect to the ground reference frame.

- The formula for kinetic energy defines the kinetic energy of a moving particle and is also valid for a translationally moving object because in that case, every point of the object has the same velocity.

- kinetic energy Theorem: The change in kinetic energy of an object is equal to the work done by the external forces acting on it.

Where:

is the initial kinetic energy of the object (J)

is the subsequent kinetic energy of the object (J)

A is the work done by external forces acting on the object (J):

+ When the acting force does positive work, the object's kinetic energy increases (the object does negative work).

+ When the acting force does negative work, the object's kinetic energy decreases (the object does positive work).

* Relationship between kinetic energy and work of force

- Consider an object with mass m moving uniformly straight with acceleration a from a state of rest under the action of a constant force F.

- The kinetic energy of the object is equal to the work of the force applied to it.

Note: The definition of kinetic energy and the formula for calculating kinetic energy specified above is for reference only.

In Vietnam, what is kinetic energy? What is the formula for calculating kinetic energy? What learning outcomes are required for kinetic energy content in the 10th-grade Physics curriculum? (Image from the Internet)

What learning outcomes are required for kinetic energy content in the 10th-grade Physics curriculum in Vietnam?

Under section V, the General Education Program for Physics issued along with Circular 32/2018/TT-BGDDT, learning outcomes required for kinetic energy content in the 10th-Physics curriculum in Vietnam are:

- From the equation of uniformly varied straight motion with initial velocity being zero, deduce that the kinetic energy of the object equals the work done by the force applied to it.

- Analyze the transformation of the kinetic energy of the object in some simple scenarios.

- State the concept of mechanical energy; state the law of conservation of mechanical energy and apply the law of conservation of mechanical energy in some simple cases.

What is the general orientation of the educational methods for Physics in Vietnam?

Under section VI of the General Education Program for Physics issued along with Circular 32/2018/TT-BGDDT, the general orientation of the educational methods for Physics in Vietnam is specified as follows:

- Develop essential qualities, general competence, and physics competence for students through practice activities, experiences, exploration, and discovery of physical phenomena and processes in the natural world;

- Apply knowledge and skills to identify and solve practical problems. Focus on organizing self-study for students according to a plan and under the guidance of the teacher, appropriate to the age’s psychology and each student's capability.

- Flexibly apply methods, techniques, and forms of teaching organization to promote students' activeness, initiative, creativity, and understanding, and life experiences in learning;

- Avoid one-sided imposition and rote memorization. Apart from the main form of teaching in the classroom or laboratory, organize some experiential activities outside the classroom such as field trips, at production facilities, or craft villages according to class or student group scale. Emphasize the application and exploitation of the advantages of information and communication technology and experimental and practical devices in organizing learning activities for students.

- Implement integrated education, especially integrating science, technology, engineering, and mathematics education (STEM education); integrate environmental protection education, efficient and economical use of energy, natural disaster prevention and control, climate change adaptation, and responding to sustainable social development requirements.

What are the objectives of the 10th-grade Physics curriculum in Vietnam?

Under section III of the General Education Program for Physics issued along with Circular 32/2018/TT-BGDDT prescribing the objectives of the 10th-grade Physics curriculum:

- Along with other subjects and educational activities, help students form and develop essential qualities and general competence as prescribed in the General Curriculum.

- Help students form and develop physics competence, with the following manifestations:

+ Gain core universal knowledge and skills about physical systems modeling; energy and waves; forces and fields;

+ Apply some scientific process skills to explore and solve problems from a physics perspective;

+ Use some knowledge and skills in practice, behave with nature in accordance with the needs of sustainable social development and environmental protection;

+ Recognize personal abilities and strengths, orient career paths, and have a study and training plan to meet the career orientation requirements.