Electricity Worksheet - Free Printable
Educational worksheet: Electricity Worksheet. Download and print for classroom or home learning activities.
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Step-by-step solution for: Electricity Worksheet
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Show Answer Key & Explanations
Step-by-step solution for: Electricity Worksheet
Let's go through the worksheet "What is Electricity?" step by step and solve each part with clear explanations.
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Diagram: A simple atomic model with a central nucleus and orbiting particles.
- Nucleus: The center of the atom.
- Contains protons (positive charge) and neutrons (no charge).
- Electrons: Small particles that orbit the nucleus in shells or energy levels.
- Carry a negative charge.
✔ Labeling:
- Protons → inside nucleus → + charge
- Neutrons → inside nucleus → neutral (0 charge)
- Electrons → orbiting around nucleus → – charge
> 💡 Tip: The number of protons equals the number of electrons in a neutral atom.
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Diagram: Two atoms shown, one losing an electron to the other via a dotted arrow.
This shows electron transfer between atoms — specifically, static electricity due to charging by friction or contact.
✔ Labeling:
- Atom on top: Losing an electron → becomes positively charged (cation)
- Atom on bottom: Gaining an electron → becomes negatively charged (anion)
✔ Explanation:
> When two atoms come into contact, electrons can be transferred from one atom to another. In this case, the top atom loses an electron and becomes positively charged because it now has more protons than electrons. The bottom atom gains that electron and becomes negatively charged because it has more electrons than protons. This process is called charging by contact, and it results in static electricity.
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Diagram: A conductor (like a wire) with electrons moving from left to right. Arrows show flow of negative charges (electrons), and positive charges are stationary.
✔ Fill-in-the-blank:
> This diagram shows electric current flowing in a conductor.
✔ Label and explain what is happening in the conductor:
Label:
- Electrons (–) → moving from left to right
- Positive ions (+) → fixed in place (part of the metal lattice)
Explanation:
> In a conductor like copper wire, electrons are loosely held and can move freely. When a voltage is applied, these free electrons drift from the negative end to the positive end of the wire. This flow of electrons is called electric current. The positive charges (atomic nuclei) remain fixed in place. The movement of electrons creates an electric current, which is how electricity flows through wires.
> ⚠️ Note: Although we say "current flows from positive to negative" (conventional current), the actual flow of electrons is from negative to positive.
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✔ Answer: Atoms
> All matter is composed of tiny building blocks called atoms.
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✔ Answer: Electric
> Electrons and protons carry electric charges — electrons are negative, protons are positive.
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✔ Answer: Negative
> Electrons are negatively charged subatomic particles.
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✔ Answer: Positive
> Protons are positively charged and located in the nucleus.
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✔ Answer: Core electrons
> These are electrons in inner shells that are tightly bound to the nucleus and do not participate in bonding.
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✔ Answer: Valence electrons
> These are the electrons in the outermost shell and are involved in chemical reactions and electrical conduction.
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✔ Answer: Flow of electrons or electric current
> Wires provide a path for electrons to move in a controlled way, creating a steady electric current.
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| Question | Answer |
|--------|--------|
| 1 | Label: Nucleus (protons +, neutrons 0), Electrons – |
| 2 | Electron transfer; one atom loses electron (becomes +), other gains (becomes –) → static charge |
| 3 | This diagram shows electric current. Electrons flow from negative to positive through conductor. |
| 4 | Atoms |
| 5 | Electric |
| 6 | Negative |
| 7 | Positive |
| 8 | Core electrons |
| 9 | Valence electrons |
| 10 | Flow of electrons / electric current |
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Let me know if you'd like a printable version or help turning this into a teaching guide!
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1. Label the parts of the atom and their charges.
Diagram: A simple atomic model with a central nucleus and orbiting particles.
- Nucleus: The center of the atom.
- Contains protons (positive charge) and neutrons (no charge).
- Electrons: Small particles that orbit the nucleus in shells or energy levels.
- Carry a negative charge.
✔ Labeling:
- Protons → inside nucleus → + charge
- Neutrons → inside nucleus → neutral (0 charge)
- Electrons → orbiting around nucleus → – charge
> 💡 Tip: The number of protons equals the number of electrons in a neutral atom.
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2. Label and explain what is happening with the above two atoms.
Diagram: Two atoms shown, one losing an electron to the other via a dotted arrow.
This shows electron transfer between atoms — specifically, static electricity due to charging by friction or contact.
✔ Labeling:
- Atom on top: Losing an electron → becomes positively charged (cation)
- Atom on bottom: Gaining an electron → becomes negatively charged (anion)
✔ Explanation:
> When two atoms come into contact, electrons can be transferred from one atom to another. In this case, the top atom loses an electron and becomes positively charged because it now has more protons than electrons. The bottom atom gains that electron and becomes negatively charged because it has more electrons than protons. This process is called charging by contact, and it results in static electricity.
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3. This diagram shows ________.
Diagram: A conductor (like a wire) with electrons moving from left to right. Arrows show flow of negative charges (electrons), and positive charges are stationary.
✔ Fill-in-the-blank:
> This diagram shows electric current flowing in a conductor.
✔ Label and explain what is happening in the conductor:
Label:
- Electrons (–) → moving from left to right
- Positive ions (+) → fixed in place (part of the metal lattice)
Explanation:
> In a conductor like copper wire, electrons are loosely held and can move freely. When a voltage is applied, these free electrons drift from the negative end to the positive end of the wire. This flow of electrons is called electric current. The positive charges (atomic nuclei) remain fixed in place. The movement of electrons creates an electric current, which is how electricity flows through wires.
> ⚠️ Note: Although we say "current flows from positive to negative" (conventional current), the actual flow of electrons is from negative to positive.
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4. All matter is made of _________.
✔ Answer: Atoms
> All matter is composed of tiny building blocks called atoms.
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5. Small particles in an atom have an _________ charge.
✔ Answer: Electric
> Electrons and protons carry electric charges — electrons are negative, protons are positive.
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6. Electrons have a ___________ charge.
✔ Answer: Negative
> Electrons are negatively charged subatomic particles.
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7. Protons have a ___________ charge.
✔ Answer: Positive
> Protons are positively charged and located in the nucleus.
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8. Inner orbiting electrons are called ___________.
✔ Answer: Core electrons
> These are electrons in inner shells that are tightly bound to the nucleus and do not participate in bonding.
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9. Outer orbiting electrons are called ___________.
✔ Answer: Valence electrons
> These are the electrons in the outermost shell and are involved in chemical reactions and electrical conduction.
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10. We use wires to produce an orderly ___________.
✔ Answer: Flow of electrons or electric current
> Wires provide a path for electrons to move in a controlled way, creating a steady electric current.
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✔ Final Answers Summary:
| Question | Answer |
|--------|--------|
| 1 | Label: Nucleus (protons +, neutrons 0), Electrons – |
| 2 | Electron transfer; one atom loses electron (becomes +), other gains (becomes –) → static charge |
| 3 | This diagram shows electric current. Electrons flow from negative to positive through conductor. |
| 4 | Atoms |
| 5 | Electric |
| 6 | Negative |
| 7 | Positive |
| 8 | Core electrons |
| 9 | Valence electrons |
| 10 | Flow of electrons / electric current |
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Let me know if you'd like a printable version or help turning this into a teaching guide!
Parent Tip: Review the logic above to help your child master the concept of electricity worksheet high school.
