Describe a general rule for predicting the motion of an object that is being pushed or pulled by unbalanced forces?

7th grade activities

Force and Motion

(with Work)

2010-2011

Outline of Topics:

1.     Describing Motion: Graphing, Speed and Velocity 

2.   Describing Motion: Changing Velocity

3.   Forces, Their Sizes and Direction

4.   Force and Mass

5.   Its a grave matter: gravity and inertia

6.   Weight and Mass

7.   All work and no play: Work and Energy

Appendices

1:  7th Grade Vocabulary Related to Force and Motion

2:  Motion Detector Directions

3:  Day 1 Graphs with Focus Question at the End

4:  Day 1 Data Collection Sheet

5:  Day 2 Student Problem Sheet

6:  Day 2 Second Set of Problems

7:  Day 2 Graphs for is the Velocity Changing

8:  Day 3 Student Tables with Questions

9:  Day 4 Frame for Science Notebook

10:  Day 5 Skateboard Prediction and Actual Sheets

11:  Day 6 Data Table

12: Day 7 Student Handout

13: Day 7 Force Arrows

14:  Day 8 Data Analysis

15:  Uncovering Student Ideas in Physical Science probes

16:  National Enquirer advertisements

17: Excerpt from Joy Hakim’s The Story of Science: Newton at the Center, pages 172-183

18:  Directions for converting You Tube videos to another media file

First topic:  Describing motion

A three-day exercise

Learning goals

Reviewed from 6th grade (day 1):

I can interpret a position versus time line graph to determine types of one-dimensional motion of an object.

I can draw a position versus time line graph given appropriate data.

I can represent changes in motion in a variety of ways, including words, motion arrows, graphs, and by acting out.

(Day 2) I can use the information in a position vs. time graph to determine the speed of an object.

New for 7th grade: I can define velocity.

(Day 3) I can distinguish between speed and velocity.

Topic Word Bank

Day 1  Focus Question:  What can be learned from different representations of motion?

Materials and Preparation:

For the class:

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explanation:

passed in september 1935, these laws are known as nuremberg laws.   they forbid jews from marrying but not directly forced them to divorce aryans. what is most noticeable is the fact that the jews were defranchised, meaning by this that they were not expected to have any civil rights, including the right to vote. the right answer is deprived of the right to vote.