11/6 – 11/17/17 (Orange, Blue Free Fall, Cir Mot)

Here are the screen shots for the last couple of weeks. There as many as you might expect because 2 of those days were Red Days and two of those days were tests.

: Time Stamp. Biggest story of the Week. Daggone it Al!

: Leonardo!

: Notice that Stegosaurus Tail is “upside down” here.

: A negative Trio this time showing money first being put in the bank and then (after ten days) being pulled from the bank. The overall trend (the second derivative) is negative so your bank account is doomed.

: Notice the the negative area of the v vs. t graph is growing. The accumulation (or actually NEGATIVE accumulation) is growing exponentially.

: Same bank account pushed out to 30 days.

: Two convenient conversions.

: 3.2.5

: Check out that asteroid and the air that can’t get out of the way. Rapidly compressed air skyrockets in temperature. Why do you think that happens?

: Robert . . . BAINES!

: 3.2.6 the set up

: 3.2.6 the finish

: 3.3

: 3.3

: 3.3.2a

: 3.3

: 3.3

: 3.3.7 The relationship between period (Tp) and omega.

: We switched to Blue Free Fall Physics. This is how we are finding the acceleration due to gravity.

: The ∆y from ceiling to floor in the room.

: In class data . . . only one siggy allowed. Makes the data horrible.

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: Significant Figures are all about how accurate your digits are in your numbers.

: Notice that with the ± numbers, the error is spelled out for you . . . it is the tenth position here that is questionalble . . .the tens digit and the units digit are fine here, so the reading the number’s digits left to right, the first iffy I come across in the tenths position so there are 3 siggies here.

: Only one siggie in 0.75 above, but the 1.24 has 2 siggies. Remember, 1st iffy is last siggy.

: dd stads for digital diarrea.

: At the stadium for a little celebration of gravity.

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: Eventhough the balls are going up this is still considered “free fall” . A free fall problem is where gravity is the ONLY force acting on the object. Since gravity causes an object to accelerate towards the earth (which we usually call down) then the ay is negative. It is a downward arrow that is telling the velocity arrow to tend toward the downward direction. Even if the velocity arrow is pointed up at first, the gravity will eat away at it until it turns it around. Once it turns the object around and brought it back to earth it want to bring it back to earth faster and faster so the velocity vector gets longer and longer in the downward direction. . . . until it finally hits the ground.