Which term describes a possible explanation of, or answer to, a scientific question that is based on prior knowledge or research and that is testable?

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

What is an aquifer for science class

Why does the equilibrium position of the spring change when a mass is added to the spring? will the mass oscillate around the new equilibrium position of the spring or the previous position without a mass attached to the spring? if the equilibrium position of the spring changes by 20 cm (assuming no initial mass) when a mass is added to the spring with constant 4.9 kg/s^2, what is the mass of the object attached to the spring?