The Physics Issues in Science

Frictional force is not a fundamental force in physics. It is an emergent force that arises due to the interaction of objects with surfaces.

The SI unit of mass is kilogram (kg).

Temperature is a scalar quantity as it has only magnitude and no direction.

The formula for calculating the kinetic energy of an object is $E_k = \frac{1}{2}mv^2$, where $m$ is the mass of the object and $v$ is its velocity.

The law of conservation of energy states that energy can be transferred from one form to another, but it cannot be created or destroyed.

Sound is an example of a wave as it involves the propagation of mechanical energy through a medium.

The electromagnetic spectrum is the range of wavelengths of electromagnetic radiation.

Radio waves are not a type of electromagnetic radiation, but rather a type of mechanical wave.

The speed of light in a vacuum is $3 \times 10^8 \text{ m/s}$.

Nuclear fission is an example of a nuclear reaction as it involves the splitting of atomic nuclei.

The SI unit of electric current is ampere (A).

An open circuit is not a type of electric circuit as it does not provide a complete path for the flow of electric current.

The formula for calculating the resistance of a conductor is $R = \frac{V}{I}$, where $V$ is the voltage across the conductor and $I$ is the current flowing through it.

Silicon is an example of a semiconductor.

All of the above statements are true.