Download presentation

Presentation is loading. Please wait.

Published byMelanie Galloway Modified over 4 years ago

1
December 14 Physics

2
A train car (mass=1000 kg) rear ends a stationary boxcar (mass = 5000 kg). After the collision they stick together and move at 5 m/s. What was the velocity of the 1000 kg train car before?

3
Objective: To analyze our dart lab data. Success criteria: Calculate the velocity of the dart before collision Examine the data for precision Justify the answer Evaluate the lab for possible errors Suggest improvements to the lab

4
Lab: Tailgated by a dart

5
Tail gated by a dart Problem: what is the velocity of the dart before it hits the car? Hypothesis: I believe that the dart goes ----- m/s before it hits the car. Procedure: sketch a diagram Data table: –Mass of car –Mass of dart –Velocity of car + dart after

6
Calculate: Obtain a numerical answer showing the relevant stages in the working.

7
Calculate the velocity of the dart before collision Before crash After (Dart )v d =(dart + car)v

8
Examine: Consider the lab in a way that uncovers the assumptions and interrelationships of the lab.

9
Examine the data for precision (Max – Min) / 2 x 100 Average Examine the lab for assumptions Examine the lab for interconnections (what depends on what?)

10
Justify: Give valid reasons or evidence to support your answer.

11
Justify the answer Show how your answer makes sense Is the answer realistic? Why, why not? How could you tell?

12
Evaluate: Assess the implications and limitations; make judgments about the ideas, works, solutions or methods in the lab.

13
Evaluate: Assess the limitations of the lab, and make judgments. useful features of lab Limitations of lab Is this lab valuable to do?

14
Suggest: Propose a solution, hypothesis or other possible answer.

15
Suggest better: Procedure Equipment Measurement Etc.

16
Out: Suggest a whole new lab that would address the same concept:

Similar presentations

OK

University of Delaware Workshops on Problem-Based Learning International Islamic University Malaysia www.udel.edu/pbl/IIUM Writing Effective Problem-Based.

University of Delaware Workshops on Problem-Based Learning International Islamic University Malaysia www.udel.edu/pbl/IIUM Writing Effective Problem-Based.

© 2018 SlidePlayer.com Inc.

All rights reserved.

To ensure the functioning of the site, we use **cookies**. We share information about your activities on the site with our partners and Google partners: social networks and companies engaged in advertising and web analytics. For more information, see the Privacy Policy and Google Privacy & Terms.
Your consent to our cookies if you continue to use this website.

Ads by Google

Ppt on microsoft excel tutorial Notebook backgrounds for ppt on social media Ppt on distrust of science Ppt on wireless sensor network security Ppt on networking related topics on meteorology Ppt on endangered species of plants Ppt on brand marketing jobs Ppt on impact of unemployment in india Ppt on indian financial market Ppt on travels and tourism in india