Distinguish between force and pressure. · How does the pressure exerted by a liquid change with depth of the liquid?

Distinguish between force and pressure.
· How does the pressure exerted by a liquid change with depth of the liquid?
· Why does buoyant force act upward on an object submerged in water?
· How does the buoyant force on a fully submerged object compare with the weigh of the water displaced?
· What are the temperatures for freezing water and boiling water on the Kelvin temperature scale?
· In which direction does thermal energy flow between hot and cold objects?
· How does heat differ from thermal energy?
· How is the energy value of food determined?
· What is the role of “loose” electrons in heat conductors?
· Describe how heat is transferred by convection
· What kind of objects give off radiant energy?
· What are the four common phases of matter, and what are the processes which transform one to another?
· Does a gas give off energy or absorb energy when it changes to a liquid? How about a solid changing into a liquid?