
Al Can Lab
Presentation
•
Physics
•
11th Grade
•
Practice Problem
•
Medium
+2
Standards-aligned
Anonymous Anonymous
Used 8+ times
FREE Resource
5 Slides • 10 Questions
1
2
Multiple Choice
Bellwork : Which part of the atom can move the easiest?
protons
neutrons
electrons
3
**This shows what charge glass and rubber would typically hold after charging-by-friction.
4
Physics Simulation: Aluminum Can Polarization (physicsclassroom.com)
1] Select "glass rod" ( positive ) and "show charges" at the bottom of the sim. Bring glass rod close to the can, but don't touch the can.
2] Slowly bring the rod closer to the can, until it touches - repeat as needed.
**What is happening to the electrons in the can as you do this?
5
Multiple Choice
When the positively-charged glass rod is brought near the can, what happens to the negative charges in the can?
negative charges in the can move away from the positive rod
negative charges in the can move toward the positive rod
negative charges in the can stay in place
6
Multiple Choice
As the glass rod is brought closer to the can, what happens to the negative charges in the can?
negative charges in the can move away from the positive rod
more negative charges move toward the positive rod and they get more concentrated
negative charges in the can stay in place
7
Multiple Select
Why is the can attracted to the rod? [ select all that apply ]
opposites attract
negative charges in the can separate and are concentrated on the side near the positive rod
the can seems to be negative to the rod
8
Physics Simulation: Aluminum Can Polarization (physicsclassroom.com)
3] Repeat with the rubber rod.
4] Slowly bring the rod closer to the can, until it touches - repeat as needed.
**What is happening to the electrons in the can as you do this?
9
Multiple Choice
When the negatively-charged rubber rod is brought near the can, what happens to the negative charges in the can?
negative charges in the can move away from the negative rod
negative charges in the can move toward the negative rod
negative charges in the can stay in place
10
Multiple Choice
As the rubber rod is brought closer to the can, what happens to the negative charges in the can?
more negative charges move away from the negative rod, getting more concentrated on the lower-half
more negative charges move toward the negative rod, getting more concentrated in the upper-half
negative charges in the can stay in place
11
Multiple Select
Why is the can attracted to the rod? [ select all that apply ]
opposites attract
negative charges in the can separate and are concentrated on the side away from the rubber rod
the can seems to be positive to the rod
12
Physics Simulation: Aluminum Can Polarization (physicsclassroom.com)
5] Add both rods and keep them on separate sides of the can as you lower them. Lower them both gradually.
6] Try to get the can to stay in between the two rods.
**Does the can seem to be attracted to one of the rods more than the other?
13
Poll
Was it easy to make the can stay in between both rods?
yes
no
14
Poll
Did it seem like the can was attracted to one rod more than the other?
yes
no
15
Poll
Exit-Pass : Which rod did the can seem to be more attracted to?
positive, glass rod
negative, rubber rod
neither, it was attracted to both rods the same
Show answer
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