Laws in Physics Trivia Quiz

Answer: Newton's third law of motion

According to Newton's third law of motion, "Every action that happens has an equal and opposite reaction and the force generated is in the opposite direction of the force applied". This is one of the most basic laws in physics. The harder you hit something, the harder it will hit you.

Answer: Zeroth law of thermodynamics

Thermal equilibrium is a condition under which two substance are in physical contact but share no heat. The zeroth law of thermodynamics states that, "if two thermodynamics systems are each in thermal equilibrium with a third one, then they are in thermal equilibrium with each other". Zeroth's law was stated after the three thermodynamics laws, but as this law is a basic concept of thermodynamics, it was placed before the first law.

Answer: Avogadro's law

Avogadro's law is an experimental gas law relating volume of a gas to the amount of substance of gas present. This law is a special case of the ideal gas law. According to this law, "Equal volume of every gas at constant temperature and pressure has same number of molecules". This number is known as Avogadro's constant.

Answer: Ohm's law

Ohm's law is one of the basic laws in physics. According to this law, "Voltage drop across a conductor is directly proportional to the amount of current flowing through it given temperature is constant". Hence we can state that V=I*R where V is the voltage drop, I is the current flowing and R is a proportionality constant called resistance.

Answer: Stefan's law

Black bodies are those bodies which absorb all the radiation falling on them. Stefan's law states that, "Total energy radiated from a black body is equal to the fourth power of its absolute temperature". We can write this statement as M = σ * T^4.

Here M is total energy radiated, T is the absolute temperature and σ is the proportionality constant, called the Stefan-Boltzmann constant, whose value is 5.67 * 10^-8 watt per meter squared per Kelvin to the fourth.

Answer: Hooke's law

According to Hooke's law, "The extension occurring in a spring is directly proportional to the force applied to extend it". This equation can be stated as F=-kx where F is the force applied, x is the small stretch in the spring and k is the spring constant.

In simple words this equation tells us that when we are trying to stretch a spring, it will increase in length. Now this increased length is directly proportional to the force applied on the spring to stretch it. Hence the more you stretch, the more force you need to apply to stretch the spring more and more.

Answer: Boyle's law

According to Boyles law, "Pressure of a given mass of an ideal gas is inversely proportional to its volume at a constant temperature". It can be written as PV=k where P is the pressure, V is the volume and k is the proportionality constant.

Answer: Graham's law

Graham's law of diffusion, also called Graham's law of effusion, was given by Thomas Graham in 1848. According to the law, "the rate of effusion of a gas is inversely proportional to the square root of the densities of the particles". This formula could be written as the rate of effusion of gas 1 / the rate of effusion of gas 2 = sqrt(M2/M1) where M2 and M1 are the masses of gas 2 and gas 1 respectively.

Answer: Charles's law

According to Charles law, "the volume of an ideal gas at constant pressure is directly proportional to the absolute temperature given pressure is constant". We can write this as V/T = K where V is volume, T is temperature of the gas and K is the proportionality constant. This law directly relates the temperature and the volume.

Answer: Coulomb's law

According to Couloumb's law, "the force between two charged particles is directly proportional to the product of their charge and inversely proportional to the square of the distance between them". We can write Coulombs law as F=(k*q1*q2)/r^2. Here F is the force, q1 and q2 are the charges and r is the difference between them. Coulomb is also the unit of charge.