How Strong Are You In Physics Formula? Quiz

Explanation
The formula for motion force is F = ma, where F represents the force applied to an object, m represents the mass of the object, and a represents the acceleration of the object. This formula is derived from Newton's second law of motion, which states that the force acting on an object is directly proportional to the mass of the object and the acceleration it experiences. Therefore, F = ma is the correct formula for motion force.

Explanation
The formula S = ut + ½at² represents Newton's second formula for motion, also known as the equation for calculating displacement. It relates the initial velocity (u), time (t), acceleration (a), and displacement (S) of an object in motion. The equation takes into account both the initial velocity and the effect of acceleration over time, allowing us to calculate the total displacement of an object at a given time.

Explanation
The formula to calculate the buoyant force acting on an object submerged in a fluid is F = mg. In this case, the stone is thrown in water, so we need to find the buoyant force. The buoyant force is equal to the weight of the fluid displaced by the stone, which is equal to the weight of the stone itself. Therefore, we can use the formula F = mg to calculate the buoyant force acting on the stone.

Explanation
Ohm's law states that the current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to the resistance of the conductor. The formula I = V/R represents Ohm's law, where I is the current in amperes, V is the voltage in volts, and R is the resistance in ohms. This formula shows that the current is equal to the voltage divided by the resistance.

Explanation
In Ohm's law formula, the letter "I" represents the current. Current is the flow of electric charge in a circuit, measured in amperes (A). Ohm's law states that the current (I) flowing through a conductor is directly proportional to the voltage (V) across the conductor and inversely proportional to the resistance (R) of the conductor. Therefore, "I" represents the current in the formula.

Explanation
The formula for heat conduction is E = mC∆t. This formula represents the amount of heat energy (E) transferred through conduction, where m is the mass of the object, C is the specific heat capacity of the material, and ∆t is the change in temperature.

Explanation
The given correct answer for this question is "Gauss formula". The Gauss formula, represented as Q = ϕϵ0, is a mathematical equation derived from Gauss's law in electromagnetism. It relates the electric flux (ϕ) passing through a closed surface to the electric charge (Q) enclosed within that surface and the electric constant (ϵ0). This formula is used to calculate the electric field in various situations, such as when dealing with symmetric charge distributions or finding the electric field due to a point charge.

Explanation
The symbol ϕ in the equation Q = ϕϵ0 represents the total flux. Flux is a measure of the flow of a physical quantity through a surface. In this context, it represents the total electric flux, which is the total amount of electric field passing through a given surface. The equation relates the electric charge (Q) to the electric flux (ϕ) and the electric constant (ϵ0), which is a fundamental constant in electromagnetism. Therefore, the correct answer is "Total flux."

Explanation
The correct formula to solve this problem is F = -kx. This formula represents Hooke's Law, which states that the force exerted by a spring is directly proportional to the displacement of the spring from its equilibrium position. The negative sign indicates that the force is in the opposite direction of the displacement. The force constant, k, represents the stiffness of the spring and determines how much force is required to stretch or compress it. Multiplying the force constant by the displacement, x, gives the magnitude of the force exerted by the spring.

Explanation
The equation P = mgh represents the potential energy of an object. Potential energy is the energy possessed by an object due to its position or state. In this equation, P represents the potential energy, m represents the mass of the object, g represents the acceleration due to gravity, and h represents the height or distance from a reference point. Therefore, the correct answer is Potential Energy.