Understanding Polar Molecules and Electrostatic Attraction

Understanding Polar Molecules and Electrostatic Attraction

Assessment

Interactive Video

Physics, Science

4th - 8th Grade

Hard

Created by

Sophia Harris

FREE Resource

The video tutorial from Frostbite Theater demonstrates an experiment using a PVC pipe and a plastic cup to show how water molecules, which are polar, are attracted to a charged object. The presenters explain the structure of water molecules and how their polar nature causes them to be drawn towards a negatively charged pipe. Viewers are encouraged to try the experiment at home using common items like a comb or a balloon. The video concludes with a light-hearted remark about the mess created during the demonstration.

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

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