DAY 19

#Goals: SWBAT...

1. set up a lab experiment without being given specific instructions. (think on your own, folks)

2. collect vx data

3. determine delta x correctly

4. get the ball bearing in the cup, 1st time

Warm-Up (5min)

Copy, and fill in the blanks:

1. After measuring y_tabletop and y_cup, I can _________ them, and solve for Δ__.
2. Using the ____-____ equation, I can then solve for the ____ the projectile takes to fall from that height.
3. Now that I know the flight time, I can use that with the velocity equation, Δv = ____/_____
4. I'll need to rearrange the velocity equation to solve for displacement, so it looks like...
5. Δx =
6. That's the displacement from the edge of the table to where I put the ____ on the floor.
7. Done.

CLASSWORK

1. #018A: Pre-Lab completion

• Work in your groups. Each person must write their answers on their own paper.
• Here's the link to the pre-lab: LINK

2. #018B: lab data collection

• Make a data table with displacement and time. On your table, mark your x_i and x_f points with small pieces of tape - I suggest that your displacement length should be .50m, but it's up to you. You must collect constant velocity data on a FLAT SURFACE. Collect 10 trials for v_x. Take the average of those ten v_x values to find your average v_x
• Find delta x for your projectile motion
• find delta y between the top of the cup and the table top (you can measure the y_cup, y_tabletop, and _________ the two.
• solve the free-fall problem to determine the time to fall delta y
• Use a plumb bob to find the initial x position for your projectile motion
• using the time you determined above, determine the x displacement (use a plumb bob to make the edge-of-table position on the floor).
• When you're ready, call me over for your one attempt, and put your cup in the correct spot. Video your attempt.

3. #019A: Warm-Up Check

• I'm checking Days 10-19, for a total of 10 warm-ups and 20 points (2 points each)

At Home Learning (HW)

If you didn't finish your calculations for the placement of your target cup, your job is to finish those for Monday. On Monday, I will be available before school, during nutrition, and during lunch for those who still need to collect data, do math, or do their trial.