Physical Science Apex Learning
3.4.2 Journal: What Floats Your Boat

2. Explain to someone who has not studied physical science how an object as large as an aircraft carrier can float in water.

3. When you step into a very full bath or hot tub, sometimes the water overflows. But when you step into a lake and swim, you don’t notice the level of the water rise at all. Explain why this is.

During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.