1. Frequency Increases: The relationship between wavelength, frequency, and speed is given by the equation:

* Speed = Wavelength x Frequency

When wavelength and speed decrease, to maintain this equation, the frequency must increase.

2. Energy Increases: The energy of a wave is directly proportional to its frequency.

* Energy = Planck's constant x Frequency

Therefore, as the frequency increases (due to decreasing wavelength and speed), the energy of the wave also increases.

3. Wave Behavior Changes: The behavior of a wave can be affected by its wavelength and speed.

* Diffraction: Waves tend to diffract (bend around obstacles) more when their wavelength is comparable to the size of the obstacle. So, a decrease in wavelength could lead to less diffraction.

* Interference: The interference pattern of waves (constructive and destructive interference) is dependent on the wavelength. A decrease in wavelength can lead to a finer interference pattern with more closely spaced maxima and minima.

Examples:

* Sound Waves: A higher frequency sound wave will have a shorter wavelength and a higher pitch. It will also carry more energy, which is why loud sounds can be painful.

* Light Waves: Visible light with shorter wavelengths (like blue light) has a higher frequency and more energy than light with longer wavelengths (like red light). This is why ultraviolet (UV) light, with even shorter wavelengths, is harmful to our skin.

It's important to note: While this explanation focuses on the relationship between wavelength, frequency, and speed, it's crucial to consider the specific type of wave and its medium. The behavior of waves can vary significantly depending on these factors.