Phryday!

Finally, we reach the end of the week! And only one more until break!!!

Physics A and B conducted an investigation that looked at Archimedes Principle and Buoyant forces. We measured weights of objects in air, their apparent weights in water, the weigh of the fluid displaced by the object and found that the apparent loss of weight by the objects indicated the weight of the displaced water and whether the object floated or sank depended on who was larger - the weight of the displaced fluid (buoyant force) or the object's weight. We'll put more flesh on this bone Monday when we look further at density and buoyancy.

Introductory Physics reviewed their labs on levers and pulleys before looking at the remaining simple machines. All machines modify force or distance and we looked at how that idea applied to the simple machines and their real-world representatives. On Monday, we'll review the machines before starting to take on energy.

Honors Physics tied work to internal energy today before looking at the property of specific heat, the amount of heat energy required to be gained or lost to change the temperature of 1 kg of substance by 1° C. With this concept, we can calculate how much heat energy a substance gained or lost to show a particular temperature change. We'll review this on Monday before taking a look at latent heat - how much energy do we need gain or lose to promote a phase change.