BASICS OF ELECTRICITY Worksheet - WordMint - Free Printable

Let's solve this matching exercise step by step. We are given 15 definitions (numbered 1 to 15) on the left and a list of possible answers (A to O) on the right. Our task is to match each definition with the correct term from the list.

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Step-by-step Matching:

1. Positive or negative state of electric current
→ This refers to the polarity of electricity.
✔ Answer: E. POLARITY

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2. Positive pole
→ In electrical terms, the positive terminal is called the anode.
✔ Answer: J. ANODE

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3. Negative pole
→ The negative terminal is called the cathode.
✔ Answer: I. CATHODE

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4. Constant and direct current
→ This describes galvanic current, which is a steady, direct flow of electricity.
✔ Answer: A. GALVANIC CURRENT

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5. Extremely low level of electricity that mirrors the body's natural electrical impulses
→ This is microcurrent, used in skincare and therapy to mimic natural bioelectricity.
✔ Answer: H. MICROCURRENТ

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6. Infuses an acidic (negative) product into the tissue from the negative pole toward the positive pole
→ This describes iontophoresis, where charged ions are driven through the skin using an electric current. Acidic (negative) products go from cathode (negative) to anode (positive).
✔ Answer: B. IONTOPHORESIS

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7. Process of introducing water-soluble products in the skin with the use of electric current
→ Again, this is iontophoresis — it uses electric current to deliver substances through the skin.
✔ Answer: B. IONTOPHORESIS

Wait! But both #6 and #7 point to B? Let’s check carefully.

Actually, #6 is more specific: it talks about acidic (negative) product moving from negative to positive — which is iontophoresis.

#7 is general: "introducing water-soluble products" using electric current — still iontophoresis.

But note: Iontophoresis is specifically for charged molecules using direct current.

So both #6 and #7 are referring to iontophoresis.

However, since we can’t assign the same letter twice unless allowed, let’s see if there's another possibility.

Wait — perhaps #7 could be anaphoresis?

No — anaphoresis is the movement of positive ions from the anode to the cathode.

But #7 is general: "water-soluble products" — so it's iontophoresis.

But let’s look at N. ANAPHORESIS — it's defined as the process of moving positive ions via current.

So #6 is about negative product (acidic), so it's iontophoresis.

#7 is general — but still iontophoresis.

But maybe the question allows multiple matches? Probably not — likely one per number.

Wait — perhaps anaphoresis is a subset?

Actually, anaphoresis is a type of iontophoresis — specifically, the movement of positive ions.

But #6 says “acidic (negative) product” → so negative ions, which would move from cathode to anode → that’s cataphoresis.

But cataphoresis isn't listed.

Wait — iontophoresis includes both anaphoresis and cataphoresis.

But iontophoresis is the general term.

So #6 and #7 both refer to iontophoresis.

But only one B.

Possibility: Maybe #7 is iontophoresis, and #6 is also iontophoresis, but perhaps they expect B for both.

But that’s unusual.

Alternatively, perhaps #7 is iontophoresis, and #6 is more specific — but still under B.

We’ll proceed and see.

Let’s continue.

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8. Also known as violet-ray thermal or heat-producing current
→ This is Tesla high-frequency current, often called violet ray because it produces a violet glow and generates heat.
✔ Answer: O. TESLA HIGH-FREQUENCY

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9. Distance between successive peaks of electromagnetic waves
→ This is the definition of wavelength.
✔ Answer: G. WAVELENGTH

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10. Light is blocked by the ozone layer
→ Ultraviolet (UV) light is absorbed by the ozone layer.
But which UV? There are types: UVA, UVB, UVC.

UVC is mostly blocked by the ozone layer.
So C. ULTRAVIOLET A, D. ULTRAVIOLET B, F. ULTRAVIOLET C — which one?

UVC is almost completely blocked by ozone.

So answer is F. ULTRAVIOLET C

✔ Answer: F. ULTRAVIOLET C

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11. Light at either end of the visible spectrum of light that is invisible to the naked eye
→ This is invisible light, such as infrared and ultraviolet.
✔ Answer: L. INVISIBLE LIGHT

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12. Has the longest length of the UV light spectrum
→ UV spectrum: UVA (longest wavelength), UVB, UVC (shortest).

So UVA has the longest wavelength.

✔ Answer: C. ULTRAVIOLET A

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13. Longer wavelengths penetrate more deeply, has less energy and produces more heat
→ This describes infrared light. It has longer wavelengths than visible light, penetrates deeper, produces heat.
✔ Answer: K. INFRARED LIGHT

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14. Light that is often called the burning light associated with sunburns
→ Sunburns are caused by UVB radiation, which damages skin cells.
✔ Answer: D. ULTRAVIOLET B

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15. Also known as phototherapy
→ Light therapy is also called phototherapy.
✔ Answer: M. LIGHT THERAPY

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Now back to #6 and #7.

Let’s re-express:

- #6: "Infuses an acidic (negative) product into the tissue from the negative pole toward the positive pole"

→ This is iontophoresis, specifically cataphoresis (movement of negative ions from cathode to anode).

- #7: "Process of introducing water-soluble products in the skin with the use of electric current"

→ This is iontophoresis — general term.

So both are B. IONTOPHORESIS.

But since both can't have the same letter, perhaps there’s a mistake?

Wait — what is N. ANAPHORESIS?

Anaphoresis: movement of positive ions from anode to cathode.

But #6 is about negative product → so not anaphoresis.

So #6 = B. IONTOPHORESIS

#7 = B. IONTOPHORESIS

But again, duplicate.

Unless... is #7 something else?

Wait — anaphoresis is sometimes used interchangeably with iontophoresis, but technically it’s a subtype.

But in many contexts, iontophoresis is the umbrella term.

Perhaps the test allows duplicates? Unlikely.

Wait — maybe #7 is iontophoresis, and #6 is anaphoresis?

No — anaphoresis is for positive ions.

#6 says acidic (negative) product → so negative ions → cataphoresis, not anaphoresis.

And cataphoresis is not listed.

So only option is B. IONTOPHORESIS for both.

But let’s check the list again.

Is there any other term?

What about N. ANAPHORESIS? Only for positive ions.

So #6 must be iontophoresis.

Similarly, #7 is iontophoresis.

So likely, both are B.

But since it's a matching exercise, perhaps the answer key expects B for both.

Alternatively, maybe #7 is meant to be iontophoresis, and #6 is a specific example.

But since both describe iontophoresis, we’ll go with B for both.

But let’s double-check the options:

- A. GALVANIC CURRENT
- B. IONTOPHORESIS
- C. ULTRAVIOLET A
- D. ULTRAVIOLET B
- E. POLARITY
- F. ULTRAVIOLET C
- G. WAVELENGTH
- H. MICROCURRENТ
- I. CATHODE
- J. ANODE
- K. INFRARED LIGHT
- L. INVISIBLE LIGHT
- M. LIGHT THERAPY
- N. ANAPHORESIS
- O. TESLA HIGH-FREQUENCY

Now, N. ANAPHORESIS is listed — so perhaps #6 is not B?

But anaphoresis is for positive ions, not negative.

So #6 cannot be anaphoresis.

Thus, #6 = B. IONTOPHORESIS

#7 = B. IONTOPHORESIS

But we can’t assign B twice.

Wait — unless the question allows it.

Or perhaps I made a mistake.

Alternative idea: Maybe #7 is iontophoresis, and #6 is anaphoresis — but no, anaphoresis is for positive.

Wait — perhaps anaphoresis is misused?

No — standard definition:
- Anaphoresis: movement of positive ions (from anode to cathode)
- Cataphoresis: movement of negative ions (from cathode to anode)

Neither is listed except iontophoresis as the general term.

So #6 is iontophoresis, and #7 is also iontophoresis.

So likely, both are B.

But let’s assume the test allows it.

Alternatively, perhaps #7 is anaphoresis, but that doesn't fit.

No.

Wait — perhaps #6 is anaphoresis if it were positive, but it says acidic (negative) product.

Acidic solutions are negatively charged when dissociated — like H⁺ and Cl⁻ — but the acidic product may be an anion.

Yes — so negative ions → cataphoresis.

But cataphoresis is not listed.

So the only choice is B. IONTOPHORESIS.

Therefore, both #6 and #7 are B.

But let’s see if the question allows multiple matches.

Since it’s a matching list, probably not.

Wait — perhaps #7 is iontophoresis, and #6 is anaphoresis — but that contradicts the charge.

Another possibility: #6 might be anaphoresis if the product were positive, but it says acidic (negative).

So no.

Therefore, conclusion: #6 and #7 both match B. IONTOPHORESIS

But since that’s impossible in a one-to-one matching, perhaps there’s a typo or misunderstanding.

Wait — let’s look at #6 again:

> "infuses an acidic (negative) product into the tissue from the negative pole toward the positive pole"

This is iontophoresis — correct.

But anaphoresis is not applicable.

So #6 = B

#7 = B

But let’s see if #7 could be anaphoresis — no.

Wait — anaphoresis is a type of iontophoresis.

But iontophoresis is the general term.

So both are covered under B.

Thus, #6 = B, #7 = B

But since we must pick one per number, and only one B, we must accept that both are B.

Perhaps the test allows it.

Alternatively, maybe #7 is anaphoresis, but that’s incorrect.

Wait — let’s search online: Is anaphoresis the process of introducing water-soluble products?

Yes — anaphoresis is a form of iontophoresis.

But iontophoresis is the broader term.

So #7 should be B.

So final decision: #6 and #7 both = B

But let’s write the full list.

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Final Matching:

| Number | Definition | Answer |
|--------|-----------|--------|
| 1 | Positive or negative state of electric current | E. POLARITY |
| 2 | Positive pole | J. ANODE |
| 3 | Negative pole | I. CATHODE |
| 4 | Constant and direct current | A. GALVANIC CURRENT |
| 5 | Extremely low level of electricity that mirrors the body's natural electrical impulses | H. MICROCURRENТ |
| 6 | Infuses an acidic (negative) product into the tissue from the negative pole toward the positive pole | B. IONTOPHORESIS |
| 7 | Process of introducing water-soluble products in the skin with the use of electric current | B. IONTOPHORESIS |
| 8 | Also known as violet-ray thermal or heat-producing current | O. TESLA HIGH-FREQUENCY |
| 9 | Distance between successive peaks of electromagnetic waves | G. WAVELENGTH |
| 10 | Light is blocked by the ozone layer | F. ULTRAVIOLET C |
| 11 | Light at either end of the visible spectrum of light that is invisible to the naked eye | L. INVISIBLE LIGHT |
| 12 | Has the longest length of the UV light spectrum | C. ULTRAVIOLET A |
| 13 | Longer wavelengths penetrate more deeply, has less energy and produces more heat | K. INFRARED LIGHT |
| 14 | Light that is often called the burning light associated with sunburns | D. ULTRAVIOLET B |
| 15 | Also known as phototherapy | M. LIGHT THERAPY |

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Note:

- #6 and #7 both match B. IONTOPHORESIS.
- If the format requires unique answers, then possibly a typo in the question or answer choices.
- But based on definitions, both are correctly matched to B.

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Final Answer Key:

1. E
2. J
3. I
4. A
5. H
6. B
7. B
8. O
9. G
10. F
11. L
12. C
13. K
14. D
15. M

✔ Completed.