What is the main purpose of the PVC pipe and plastic cup in the experiment?

Understanding Polar Molecules and Electrostatic Attraction

Interactive Video
•

Sophia Harris
•
Physics, Science
•
4th - 8th Grade
•
Hard
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9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
To show how water can be filtered
To demonstrate water's boiling point
To measure the speed of water flow
To illustrate the concept of electrostatic attraction
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are water molecules considered polar?
They have a symmetrical distribution of charge
They have an asymmetrical distribution of charge
They are always positively charged
They are made of only hydrogen atoms
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the shape of a water molecule often compared to?
A straight line
A square
A triangle
Mickey Mouse
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the overall charge of a water molecule?
Positive
Negative
Neutral
Variable
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when a negatively charged pipe is brought near a stream of water?
The water molecules move away from the pipe
The water molecules remain unaffected
The water molecules evaporate
The water molecules are attracted to the pipe
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect of opposite charges in the context of this experiment?
They have no effect
They repel each other
They attract each other
They neutralize each other
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following items can be used to replicate the experiment at home?
A metal spoon
A wooden stick
A glass bottle
A comb
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of the charged object in the home experiment?
To freeze the water
To change the water's color
To attract the water stream
To heat the water
9.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What did the presenters conclude about the experiment?
It made a mess but was informative
It was too complex to understand
It was unsuccessful
It was irrelevant to the topic
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