PHYSICAL QUANTITY
Force: formulas and units of measurement
Force: symbol F, unit N. Formulas and explanations for Mechanics, Magnetism.
FF\text{Н}newton
KEY CONNECTIONS
Formulas
F=maF = ma
F_{\text{упр}}=k\left|\Delta l\right|Fупр = k|Δl|
F_{\text{тр}}=\mu NFтр = μN
F_{\text{тр}}=\mu mg\cos\alphaFтр = μmg cos α
F=mgF = mg
F=G\frac{m_1m_2}{r^2}F = Gm₁m₂ / r²
F_A=IlB\sin\alphaFₐ = IlB sin α
F_{\text{Л}}=|q|vB\sin\alphaFл = |q|vB sin α
NOTATION
Quantities in formulas
- F
- Force is a measure of the interaction of bodies that changes their movement or shape.
- m
- Mass is a scalar physical quantity that is a measure of the inertia of a body.
- a
- Acceleration is the rate of change of a body's velocity.
- F_{\text{упр}}
- Elastic force is a force that occurs when a body deforms.
- k
- The stiffness of a spring is a characteristic of its resistance to deformation.
- \Delta l
- Elongation is a change in the length of a body during deformation.
- F_{\text{тр}}
- Friction force is a force that prevents the relative movement of surfaces.
- \mu
- Friction coefficient is a characteristic of the resistance to movement of contacting surfaces.
- N
- The support reaction force (normal pressure force) is the force with which the support acts on the body perpendicular to the surface.
- g
- Gravity acceleration is the acceleration of a body under the influence of gravity without taking into account the resistance of the medium.
- \alpha
- Angle is a quantity characterizing the mutual rotation of directions.
- G
- Gravitational constant is a coefficient characterizing the force of universal gravity.
- m_1
- The mass of the first body is a measure of the inertia of the first body under consideration.
- m_2
- The mass of the second body is a measure of the inertia of the second body under consideration.
- r
- Distance - the length of the space between selected points.
- F_A
- Ampere force is the force of a magnetic field on a current-carrying conductor.
- I
- Current strength is the charge passing through the cross section of a conductor per unit time.
- l
- Conductor length is the length of the conductor section under consideration.
- B
- Magnetic induction is a force characteristic of a magnetic field.
- F_{\text{Л}}
- The Lorentz force is a force acting on a moving charge in a magnetic field.
- q
- Electric charge is a quantity that determines the participation of a body in electrical interaction.
- v
- Velocity is the rate and direction of change of a body's position.
THEORY
Related Lessons
Force, gravity and apparent weight7 class · 22 min→Elasticity and net force7 class · 24 min→Friction force7 class · 18 min→Buoyant force7 class · 22 min→Charge interaction and electric field8 class · 26 min→Magnetic field action and motor8 class · 24 min→Newton's three laws9 class · 28 min→Gravity, elasticity, weight and friction9 class · 32 min→Circular dynamics and satellites9 class · 26 min→Newton's laws10 class · 20 min→
PRACTICE
Related tasks
DIRECTORY