I'm making flash cards for my end of year science exam so answer in a question: answer format. any answer even if it's just one is appreciated!

Protons and neutrons are found within the nucleus of an atom

Selma made a diagram to compare convection and radiation. which label belongs in the area marked x? must involve temperature differences between substances or objects only occurs when molecules are in direct contact involves the movement of fluids based on density differences can occur where there is little or no matter

An electron in an x-ray machine is accelerated through a potential difference of 1.00 × 104 v before it hits the target. what is the kinetic energy of the electron in electron volts?