This is the daily classroom agenda for Paxton Center School Grade 7 Science. Lesson plans, homework, and other relevant information will be posted here each class.
P3 - RW, AG
P4 - JW
P6 - CO
Magnets and Magnetic Fields Lesson Outline
check completion Gr7P6
Coin Toss Choose to Choose Lane for first race
Best 2 out of three
Switch Lane each race.
Launch Lab
(This is the 12/16 Do Now assignment in GC)
All cans must start on the starting line.
You “Static tool” must be placed on the table.
When I signal to “start” you may pick up your tool and begin racing.
You may not push your can forward by:
contact
blowing
If your can falls off the edge, you must:
Pick it up.
Place it on the table at a point behind where it fell off.
Continue the race..
(This is the 12/16 Do Now assignment in GC)
Triboelectric series - list order of materials that tend to give up charge or gain charge through contact.
Donors - give electrons up and become positively charged
Gainers - take electrons through adhesion and become negatively charged
Induced Charge - When the electrons move out of an area and leave an unbalanced positive charge
Happens in conductors
conductors - materials that allow electrons to move through them freely
metals
Does not happen in insulators
insulator - materials that resist the movement of electrons
Metal objects acquire positive and negative poles
Rub balloon on hair
Balloon takes electrons through adhesion
becomes negatively charge.
Placed near a metal can - electrons (negative charges)are pushed to opposite side.
can now has a positive and negative poles
opposites attract
can is pulled toward the balloon
(This is the 12/16 Do Now assignment in GC)
Conductor
any material electrons can move through easily
all metals
used commonly in wiring foe all electrical technology
Insulator
any material that electrons cannot move through easily
glass, rubber, air
used for protection in safety and electrical equipment
Transferring charge
Contact - rubbing an insulator on another and removing electrons through adhesion
Conduction - electrons moving though metals such a s wires
always flows for object with a high charge toward lower charge
flow until charge is equalized
Induction - polarization of a conductor when a charge object is placed near it
Charges in the conductor flow away from a negatively charge object and group up at far end
gives the conductor opposing negative and positive poles.
Finish all work on Balloons and Static Charge vs Speed Graphing
Located in GC
Turn it in.
Watch the “Cheat Codes - Balloons and Static Charge vs Speed Graphing How-to Video” to help
Students who were absent will be accommodated.
Monday
Preflight checks - passed in/entered.
Launch order - random
Demonstrations
Mr. Wahlstrom will be back Thursday.
Rocket Launching is hoped for on Tuesday of next week.
Rinsed!
EC if you bring three or more to share with those who have none!
Located in Google Classroom.
Due before class tomorrow
Balloons and Static Electricity
Partners to cooperatively use the simulation and discuss each propmt.
Each student to write their own response on their copy of the documents.
All work not finished in GC is homework due before school tomorrow.
Check and Review in Class
Read “Rocket Design Basics “ in the Rocket Man document and be prepared to answer a few basic questions about:
What forces affect a rocket?
What design strategies will help make a rocket perform better?
Check and Review in Class
Finish as Needed and Share
Why don’t people fall off the other side.
Class Check - self grading
Score
Pass in
Review in Clever
Discuss contact vs noncontact force
Notes?
PhET Gravity Activity Worksheet
Share
Complete in Clever - backup option will be GC
Project Planning
Issue Materials
store in locker
no construction
Calculate the net force on the ball.
Calculate the acceleration of the ball.
Calculate the weight of the ball in Newtons on Earth.
Quiz Thursday - Newton’s Laws of Motion
Review
Team Formation
Materials Check
When one object exterts a force on a second object, the second object exerts and equal force on the first object in the opposite direction.
for every action there is an equal but opposite reaction.
action - the initial force
reaction - the equal but opposite push back
act on different objects (sketch)
because action and reaction act on different objects - they sometimes behave very differently.
Examples:
ball bounce
standing on floor
action and reaction make a force pair.
Forces always occur in pairs.
normal force is a reaction force to pushing against a surface
