What is torque and its significance?
Torque is a measure of the force that can cause an object to rotate about an axis. Just as force is what causes an object to accelerate in linear kinematics, torque is what causes an object to acquire angular acceleration. Torque is a vector quantity.
What is physical significance?
A property’s “physical significance” means exactly what it seems to mean: what the property describes in the physical world. Basically, “physical significance” is a fancy term for “definition”.
What is physical torque?
Torque is the measure of the force that can cause an object to rotate about an axis. Hence, torque can be defined as the rotational equivalent of linear force. The point where the object rotates is called the axis of rotation. In physics, torque is simply the tendency of a force to turn or twist.
What is the physical significance of angular momentum?
In physics, angular momentum (rarely, moment of momentum or rotational momentum) is the rotational equivalent of linear momentum. It is an important quantity in physics because it is a conserved quantity—the total angular momentum of a closed system remains constant.
Why torque is important in our life?
Torque surrounds us. Millions and millions of 4,000-pound automobiles zip along the roads daily. Lack of torque control has caused wheel detachment on vehicles, failures with life-saving medical instruments and prevented electronic devices from functioning. Without torque control, our daily lives would not be the same.
What is torque simple definition?
Torque is a twisting force that speaks to the engine’s rotational force and measures how much of that twisting force is available when an engine exerts itself. This applies torque, or a twisting force, to the bolt. While horsepower is simply measured in horsepower, torque is typically measured in pounds feet (lb. -ft).
What is physical significance of refractive index?
What is the physical significance of refractive index? The refractive index of any medium gives the ratio of the speed of light in vacuum to the speed of light in that medium. This means that the ratio of the speed of light in vacuum or air to the speed of light in water is 1.33.
What is the physical significance of ψ?
ψ is a wave function and refers to the amplitude of electron wave i.e. probability amplitude. It has got no physical significance. The wave function ψ may be positive, negative or imaginary. (ii) ψ2 is high, the probability of finding an electron is high i.e. electron is present at that place for a long time.
How do you explain torque?
Torque is a rotating force produced by an engine’s crankshaft. The more torque an engine produces, the greater its ability to perform work. The measurement is the same as work, but slightly different. Since torque is a vector (acting in a certain direction), it’s quantified by the units pound-feet and newton-meters.
What happens when torque is zero?
Because there is no net torque acting on an object in equilibrium, an object at rest will stay at rest, and an object in constant angular motion will stay in angular motion. Because the net torque is equal to zero, the torques in Example 1 are balanced and acting in equilibrium.
Is angular momentum always conserved?
Just as linear momentum is conserved when there is no net external forces, angular momentum is constant or conserved when the net torque is zero. If the change in angular momentum ΔL is zero, then the angular momentum is constant; therefore, →L=constant L → = constant (when net τ=0).
What is the meaning of the word torque?
Torque is defined as the turning effect of a force about the axis of rotation or it is the moment of force about the axis of rotation. Torque as a force that causes rotational motion.
Are there any torques in the real world?
In the real world, you often see more than one force acting on an object to cause torque. The net torque is the sum of the individual torques. In rotational equilibrium, there is no net torque on the object. There may be individual torques, but they add up to zero and cancel each other out.
How is torque related to the moment arm?
The magnitude of torque depends on how much force is applied, the length of the lever arm that connects the axis to the point where the force is applied, and the angle between the force vector and the lever arm. The distance is the moment arm, often denoted by r.
What does the cross product of torque mean?
Torque direction meaning. So torque, mathematically, is the cross product of the radial distance vector and a force vector. This cross product gives another vector that is orthogonal to both vectors and it points either outside or towards the “page” (in the context of a two dimensional diagram).