The interval within which the true value can be expected to lie, with a given level of confidence or probability, e.g. “the temperature is 20°C ±…
The front of a car is designed to crush in a fairly predictable way during a crash. A lot of the kinetic energy is converted to…
Isaac Newton His estimated IQ scores range from 190 to 200 by different measures. He wrote “Philosophiae Naturalis Principia Mathematica,” widely believed to be the most…
One of the most common things you will be doing with algebra in a physics course is rearranging physics equations. You may be doing this to simplify an equation, or you might be trying to get an unknown to one side of the equation to solve for it. Is physics a calculus or algebra? Answers…
Launcher The Projectile Launcher is used to investigate important concepts in two- dimensional kinematics. A steel ball placed in the launch barrel can be projected for different launch velocities and launch angles. An easy-to-use dial allows you to set the desired launch angle. What is a projectile class 11 physics? A projectile is any object…
The standard model does not explain gravity. The approach of simply adding a graviton to the Standard Model does not recreate what is observed experimentally without other modifications, as yet undiscovered, to the Standard Model. Why the Standard Model is important? The standard model has proved a highly successful framework for predicting the interactions of…
Terminal velocity is the maximum velocity (speed) attainable by an object as it falls through a fluid (air is the most common example). It occurs when the sum of the drag force (Fd) and the buoyancy is equal to the downward force of gravity (FG) acting on the object. What is terminal velocity of a…
Thus, the maximum height of the projectile formula is, H = u 2 sin 2 θ 2 g . What is the formula of height? Calculate the height of the object of interest by calculating “D * tan (theta),” where “*” indicates multiplication and “tan” is the tangent of angle theta. For example, if theta…
A mousetrap car works on the principle of a lever. One end of the lever is connected to a spring. When a force is used to pull up the other end of the lever up, the spring tightens, storing energy. When the lever is released, the stored energy in the spring is transferred back to…
Vectors. Kinematics. Force & Laws of motion. Rotation. Fluid. Gravitation. SHM. Centre of Mass. What are some major topics of physics? Measurement and the Language of Physics. Physics Terminology. Kinematics: The Physics of Motion. Graphing. Dynamics: Forces and Motion. Impulse and Momentum. Conservation of Energy. Periodic and Simple Harmonic Motion. Heat and Temperature. Teaching About…
Tangential velocity is the linear component of the speed of any object which is moving along a circular path. When an object moves in a circular path at a distance r from the center, then the body’s velocity is directed tangentially at any instant. This is termed as tangential velocity. What is tangential velocity in…
As a golf ball travels through the air, wind resistance creates drag, which slows the ball down. The dimples on a golf ball reduce the drag of the air making it possible for the ball to go faster and farther. At the USGA Test Center, scientists created a 70-foot-long tunnel to test golf balls. What…
Mechanical engineers use physics to ensure the machines, tools and engines they design will work as planned. Civil engineers use physics to establish that their bridges, roads, dams and other large infrastructure projects remain physically sound regardless of the stress placed on them. Is physics used a lot in engineering? Engineering is basically physics applied…
The average life of an anti glare coating is two years, and after that, you have to change it with the new one. The anti glare coating starts to wear off under various conditions, including scratches from keys, using lousy quality cleaning solutions, and microfiber cloths. How does anti-reflective coating work physics? AR coating utilizes…
Wind farms have different impacts on the environment compared to conventional power plants, but similar concerns exist over both the noise produced by the turbine blades and the visual impacts on the landscape . What is the physics behind windmill? Turbines catch the wind’s energy with their propeller-like blades, which act much like an airplane…
The beats produced per second refers to the difference between the frequencies of the two tuning forks. Formula used: The frequency of the beats produced is given by, fbeat=f1−f2 where f1 and f2 are the frequencies of the two sound waves. How does a tuning fork work physics? A tuning fork serves as a useful…
R = m(g – g) = 0. Thus, the apparent weight of the man becomes zero. This is because both the man and the lift are moving downwards with same acceleration ‘g’ and so there are no forces of action and reaction between the person and the lift. How do you calculate the weight of…
It turns out that the curvature of the spaghetti is to blame. When you apply force to a piece of spaghetti, it bends — then it breaks. Now free from the force that caused it to bend, it begins to straighten out. But on the opposite end of the spaghetti, that tension is being released…
Calculate the tension in the rope using the following equation: T = M x A. Four example, if you are trying to find T in a basic pulley system with an attached mass of 9g accelerating upwards at 2m/s² then T = 9g x 2m/s² = 18gm/s² or 18N (newtons). How do you solve pulley…
The basic physics of running are pretty simple. A runner applies a force to the ground that is directed opposite the direction they are running. Then Newton’s third law kicks in, and the ground applies and equal and opposite reaction force on the running, causing their body to be propelled upward and forward. How is…
The magnitude of this force is equal to that which you exert on the trampoline when you land. Hooke’s law is stated in the following equation: F = -kx where F is force, k is the spring constant and x is the displacement of the spring. What are the physics of a trampoline? Trampolines get…
To launch a projectile, a trebuchet utilizes the transfer of gravitational potential energy into kinetic energy. A massive counterweight at one end of a lever falls because of gravity, causing the other end of the lever to rise and release a projectile from a sling. How do you calculate a trebuchet? The formula we then…
3. For each object and each direction, write down ΣF = (sum of forces) = ma. to solve the problem completely. What is the sum of 2 forces? When vectors represent forces, their sum is called the resultant. The resultant of two forces can be found using the methods for adding vectors when the vectors…