<p>Full file at http://testbank360.eu/solution-manual-conceptual-physical-science-1st-edition-hewitt
Laboratory Suggestions,
with Answers to Lab Manual Questions
Introduction and Part 1 Activities and Experiments
Introduction
Tuning the Senses - Observation
Making Cents - Scientific Method
Part 1: Mechanics
Go! Go! Go! - Graphing Motion
Sonic Ranger - Graphing Motion
Pulled Over - Newton’s Second Law
Reaction Time - Free Fall
Egg Toss - Impulse
Bouncy Board - Impulse
Rolling Stop - Energy Transformations
The Big BB Race - Horizontal and Vertical Motion
Tuning the Senses [Activity]
This activity may be assigned as an "outside experience" (or homework), to be followed up later during
classroom discussion.
For the second half of this activity, watching the burning candle, for a large class of 28 students or so you
will probably want to use four groups of seven, (or seven groups of four), with one candle per group, as it
might be impractical and unnecessary
to burn 28 candles, or more, per class. Again, you may choose to assign this as an "outside experience", and
avoid clean-up and potential fire problems. This activity may easily be converted into an experiment by
having a student in each group measure and record the candle's length and diameter before and after
burning for a recorded time. The hypothesis to be tested could be, "The change in length per minute while
burning is not directly proportional to diameter."
Making Cents [Activity]
Brad Huff at The Fresno County Office of Education in Fresno, CA is credited for this activity. He
discovered in 1984 that there was nearly an equal distribution of pre/post 1982 pennies in circulation. His
students discovered the difference in mass as part of an exercise on how to use mass balances. So point out
to your students the role of a good scientific attitude in making "accidental" discoveries—this one could
have been overlooked as "human error."
The composition of the alloy in pennies was changed in 1982. Pennie