AFL Heat, Light and Sound

Which form of energy requires a medium through which to pass?

Which type of energy doesn't necessarily require a medium through which to pass

In the wave equation, $$v=f\times\lambda$$ , the symbol $$\lambda$$ signifies

It would be true to say that

Match the following

Reorder the following of increasing frequency

The speed of a wave was 340m/s. What would the frequency be if the wavelength is 34m? ( $$v=f\times\lambda$$ )

A wave is produced and found to be of a specific wavelength and frequency. If the wavelength is doubled and the frequency halved, what would the new speed be?

Match the heat transfer with the correct description

Light is being