Cátodo

Cátodo

Assessment

Interactive Video

Science, Engineering, Physics

4th - 9th Grade

Hard

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The video explains the role of the cathode in different devices. In power-consuming devices, the cathode is negative, while in energy-providing devices, it is positive. During electrolysis, the cathode is negatively charged and connected to the negative terminal of a power supply, attracting cations that gain electrons.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a device that uses power, what is the charge of the cathode?

Variable

Neutral

Negative

Positive

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the charge of the cathode in a device that supplies energy?

Neutral

Positive

Negative

Variable

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

During electrolysis, to which terminal is the cathode connected?

Neutral terminal

Ground terminal

Negative terminal

Positive terminal

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of charge does the cathode have in electrolysis?

Variable

Neutral

Negative

Positive

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to cations at the cathode?

They remain unchanged

They gain electrons

They lose electrons

They become neutral