The meter is the fundamental unit of length in the SI system.

Velocity is defined as the rate of change of displacement with respect to time, so its dimension is [L]/[T].

A vector quantity is characterized by both its magnitude and its direction.

The dot product of two vectors is a scalar quantity that is equal to the product of the magnitudes of the two vectors and the cosine of the angle between them.

A conservative force is a force that does not depend on the path taken by the object. The gravitational force is a conservative force.

The work done by a force is equal to the change in the mechanical energy of the object.

The joule is the SI unit of energy.

The frequency of a wave is measured in hertz, which is equal to one cycle per second.

The speed of a wave is equal to the product of its frequency and its wavelength.

The intensity of a wave is measured in watts per square meter.

Radio waves, microwaves, infrared waves, and ultraviolet waves are all types of electromagnetic waves.

The speed of light in a vacuum is approximately 3 x 10^8 m/s.

Wavelength, frequency, amplitude, and intensity are all properties of a wave.

The superposition principle states that when two waves meet, they interfere with each other.

The pascal is the SI unit of pressure.