What are the 3 formulas in physics?
The three equations are, v = u + at. v² = u² + 2as. s = ut + ½at²
All-inclusive calculations in physics for senior secondary schools written by Solomon Dauda was published in the year 2010 and uploaded for 000 level For other’s category students of WAEC, JAMB & POST UTME (WAEC, JAMB & POST UTME) offering PHYSICS course.
How do I calculate force?
Force exerted by an object equals mass times acceleration of that object: F = m * a .
How do I calculate current?
The current formula is given as I = V/R. The SI unit of current is Ampere (Amp).
What is the basics of physics?
Physics is a study of how the universe behaves. Physics is a natural science that involves the study of matter and its motion through space and time, along with related concepts such as energy and force. More broadly, it is the study of nature in an attempt to understand how the universe behaves.
What is the most famous physics formula?
The equation E = Mc2 is perhaps the most famous equation of twentieth- century physics. It is a statement that mass and energy are two forms of the same thing, and that one can be converted into the other (ibid., p.
What is 1st equation of motion?
The first equation of motion is v = u +at. Here, v is the final velocity, u is the initial velocity, a is the acceleration and t is the time.
What is E mc2 used for?
E = mc2, equation in German-born physicist Albert Einstein’s theory of special relativity that expresses the fact that mass and energy are the same physical entity and can be changed into each other.
What is the full form of E mc2?
“Energy equals mass times the speed of light squared.” On the most basic level, the equation says that energy and mass (matter) are interchangeable; they are different forms of the same thing. Under the right conditions, energy can become mass, and vice versa.
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.
How do we calculate torque?
Measure the distance, r , between the pivot point and the point the force is applied. Determine the angle θ between the direction of the applied force and the vector between the point the force is applied to the pivot point. Multiply r by F and sin θ and you will get the torque.
What is the SI unit of force?
The SI unit of force is the newton, symbol N. The base units relevant to force are: The metre, unit of length — symbol m. The kilogram, unit of mass — symbol kg. The second, unit of time — symbol s.
How do you calculate speed?
Speed tells us how fast something or someone is travelling. You can find the average speed of an object if you know the distance travelled and the time it took. The formula for speed is speed = distance ÷ time.
How do I calculate voltage?
- To find the Voltage, ( V ) [ V = I x R ] V (volts) = I (amps) x R (Ω)
- To find the Current, ( I ) [ I = V ÷ R ] I (amps) = V (volts) ÷ R (Ω)
- To find the Resistance, ( R ) [ R = V ÷ I ] R (Ω) = V (volts) ÷ I (amps)
- To find the Power (P) [ P = V x I ] P (watts) = V (volts) x I (amps)
How do you calculate Ohm’s law?
What is a watt formula?
Amps (A) x Volts (V) x Power Factor = Watts (W)
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.
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.
What is the most powerful equation?
Einstein’s E=mc² is the world’s most famous equation. Simple as that. It is short, it is elegant, and it describes a phenomenon so crucial that everyone should know about it.
What are the 4 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 are the formula of 3 laws of motion?
The formula of 3 laws of motion are ……. 1) Every object stays in the same position until an external force is applied on it. 2) F = ma. 3) An action has an equal and opposite reaction.
What is velocity relation?
velocity ratio is The ratio of the distance moved by the point at which the effort is applied in a simple machine to the distance moved by the point at which the load is applied, in the same time. In the case of an ideal (frictionless and weightless) machine, velocity ratio = mechanical advantage.
Why is speed of light c?
Speed of light is now universally represented by symbol ‘c’. This symbol originated from the initial letter of the Latin word “celerity” meaning “swift” or “quick”. This symbol was used by Weber and Kohlrausch in their papers in 1856.