What are the content and requirements of knowledge of physics on dynamics in the high school curriculum in Vietnam?

No.

Content

Requirements to be met

3

dynamics

Newton's three laws of motion

- Perform an experiment, or use the given data to derive a ~ F, a ~ 1/m, from which the expression a = F/m or F = ma (2 Newton's law).

- From the available results (taken from experiments or using given data), or reasoning based on a=F/m, it can be stated that mass is a characteristic quantity for the inertia of the object.

- State Newton's 1st law and illustrate it with specific examples.

- Apply the relationship of derived units with 7 basic units of the SI system.

- State that the force of gravity acting on an object is the force of attraction between the Earth and the object; the center of gravity of an object is the point at which gravity acts on the object; The weight of an object is calculated as the product of the mass of the object with the acceleration in free fall.

- Describe with real-life examples of equal and unequal forces.

- Describe qualitatively the motion of falling in a uniform gravity field in the presence of air resistance.

- State Newton's 3rd law, illustrated by specific examples; apply Newton's 3rd law in some simple cases.

Some forces in practice

- Described by practical examples and represented by drawings: Gravity; Friction force; Drag when an object is moving in water (or in the air); Lifting (push upward) force of water; String tension.

Explain the lifting force acting on an object in water (or in air).

Force balance, torque

- Using the figure, sum up the forces on a plane.

- Using the figure, analyze a force into perpendicular component forces.

- Discuss to design the plan or select the plan and implement the plan, synthesizing two concurrent forces using practical tools.

- State the concept of torque, torque; State the effect of a torque on an object that only rotates the object.

- State and apply moment rule for some simple cases in practice.

- Discuss to derive the conditions for the object to be in equilibrium: the total force acting on the object is zero and the total moment of force acting on the object (for any point) is zero.

Density, liquid pressure

- State that the density of a substance is the mass per unit volume of that substance.

- Establish and apply the equation Δp = ρgΔh in some simple cases; Design proposal is illustrated mode

No.

Content

Requirements to be met

4

Work, energy, power

Work and energy

- Create a simple model illustrating the law of conservation of energy, involving several different forms of energy.

- Give an example showing that energy can be transferred from one object to another by doing work.

- State the expression to calculate the equality of the product of the applied force and the displacement in the direction of the force, stating that the unit of work is the unit of energy measurement (with 1 J = 1 Nm); Calculate the work in some simple cases.

Kinetic and potential energy

- From the equation of linear motion that varies uniformly with an initial velocity of zero, the kinetic energy of an object can be derived which is equal to the work of the force acting on the object.

- State the formula for calculating potential energy in a uniform gravity field, which can be applied in some simple cases.

- Analyze the transformation of kinetic and potential energy of an object in some simple cases.

- 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.

Power and efficiency

- From some practical situations, discuss to state the physical meaning and definition of power.

- Apply the relationship of power (or speed at which work is done) with the product of force and velocity in some real-life situations.

No.

Content

Requirements to be met

5

Momentum

Momentum definition

- From real situations, discuss to state the physical meaning and definition of momentum.

Conservation of momentum

- Conduct experiments and discuss, state the law of conservation of momentum in a closed system.

- Apply the law of conservation of momentum in some simple cases.

Momentum and collision

- Draw the relationship between the total force acting on the object and the rate of change of momentum (the total force acting on the object is the rate of change of the object's momentum).

- Perform experiments and discuss the energy change in some simple collision cases.

- Discuss to explain some simple phenomena.