- (1) Mirror formula, 1/v + 1/u = 1/f.
- (3) Lens formula 1/v – 1/u = 1/f.
- (1) Electric Current, I = q/t.
- (2) Potential difference, v = W/Q.
- (3) Ohm’s law, V = IR.
- (4) Resistivity, ρ = RA/L.
- (5) Conductivity = L/RA.
- (8) Electric power, P = W/t = VI = I2R.

**Table of Contents**show

## What are the 3 formulas in physics?

The three equations are, v = u + at. v² = u² + 2as. s = ut + ½at²

## What is the most important formula in physics?

E=mc^2. For our first, we’ll take perhaps the most famous equation of all. Albert Einstein’s 1905 equation relating mass and energy is both elegant and superficially counterintuitive. It says that energy is equal to the mass of an object in its rest frame multiplied by the speed of light squared.

## What are the 5 equations of motion?

The equations are as follows: v=u+at,s=(u+v2)t,v2=u2+2as,s=ut+12at2,s=vt−12at2.

## What is the basics of physics?

Physics – natural science that involves the study of matter and its motion through spacetime, along with related concepts such as energy and force. More broadly, it is the general analysis of nature, conducted in order to understand how the universe behaves.

## Is physics easy or hard?

“Physics is not an easy subject if you do not understand. If you do then you will do very well. Though our students had the material in hand they did not use it,” she said.

## What is the hardest physics formula?

Yet only one set of equations is considered so mathematically challenging that it’s been chosen as one of seven “Millennium Prize Problems” endowed by the Clay Mathematics Institute with a $1 million reward: the Navier-Stokes equations, which describe how fluids flow.

## How do I learn all physics formulas?

- Step 1 – Free Yourself from Stress. To learn anything, you need to de-stress yourself first.
- Step 2 – Try to Understand the Formula.
- Step 3 – Constantly Work On It.
- Step 4 – Stop Relying on your Formula Sheet.

## How can I study physics?

## Is velocity a speed?

Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object’s movement. Put another way, speed is a scalar value, while velocity is a vector.

## What does T in physics mean?

In the field of physics, the letter ‘T’ is often used to denote the period of oscillation (commonly reffered to as simply ‘period’). The period of oscillation can be defined as the duration of time between one wave and the next one passing the same spot. Its units are usually expressed in seconds.

## What is V motion physics?

v = Final velocity. a = Acceleration. t = Time of motion.

## What is V in mirror formula?

V is the image, image distance, so this is image distance, and that’s something we don’t know in this problem. And u is the object distance, these are the letters that we usually use for mirrors, object distance.

## What is formula science?

In science, a formula is a concise way of expressing information symbolically, as in a mathematical formula or a chemical formula. The informal use of the term formula in science refers to the general construct of a relationship between given quantities.

## What are the 4 forces?

There are four fundamental forces at work in the universe: the strong force, the weak force, the electromagnetic force, and the gravitational force. They work over different ranges and have different strengths. Gravity is the weakest but it has an infinite range.

## What are the 4 laws of physics?

These four basic forces are known as fundamental because they alone are responsible for all observations of forces in nature. The four fundamental forces are gravity, electromagnetism, weak nuclear force, and strong nuclear force.

## Why is physics so hard?

Why is Physics harder than Math? Answer: Physics demands problem-solving skills that can be developed only with practice. It also involves theoretical concepts, mathematical calculations and laboratory experiments that adds to the challenging concepts.

## What is the hardest subject?

The hardest degree subjects are Chemistry, Medicine, Architecture, Physics, Biomedical Science, Law, Neuroscience, Fine Arts, Electrical Engineering, Chemical Engineering, Economics, Education, Computer Science and Philosophy.

## Is physics harder than math?

Physics might be more challenging because of the theoretical concepts, the mathematical calculations, laboratory experiments and even the need to write lab reports.

## Is physics harder than biology?

Beginning university students in the sciences usually consider biology to be much easier than physics or chemistry. From their experience in high school, physics has math and formulae that must be understood to be applied correctly, but the study of biology relies mainly on memorization.

## What are the 7 unsolved math problems?

Clay “to increase and disseminate mathematical knowledge.” The seven problems, which were announced in 2000, are the Riemann hypothesis, P versus NP problem, Birch and Swinnerton-Dyer conjecture, Hodge conjecture, Navier-Stokes equation, Yang-Mills theory, and Poincaré conjecture.

## What are the top 5 formulas in math?

- Area of Triangle: area = (1/2) (base) (height)
- Pythagorean Theorem: a²+b²=c²
- Area of Rectangle: area = length x width.
- Area of Parallelogram: area = base x height.
- Area of Circle: π * r²
- Circumference of Circle: circumference = 2π * r.

## What is the longest math problem?

The longest-standing unresolved problem in the world was Fermat’s Last Theorem, which remained unproven for 365 years. The “conjecture” (or proposal) was established by Pierre de Fermat in 1937, who famously wrote in the margin of his book that he had proof, but just didn’t have the space to put in the detail.

## How do u calculate force?

Force exerted by an object equals mass times acceleration of that object: F = m * a .

## How can I memorize faster?

- Try to understand the information first. Information that is organized and makes sense to you is easier to memorize.
- Link it.
- Sleep on it.
- Self-test.
- Use distributed practice.
- Write it out.
- Create meaningful groups.
- Use mnemonics.