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Year 8

Static electricity

I can describe how objects with a positive or negative charge attract or repel other charged objects.

icon-background-square
New
New
Year 8

Static electricity

I can describe how objects with a positive or negative charge attract or repel other charged objects.

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Lesson details

Key learning points

  1. Some objects can be charged by rubbing with certain materials.
  2. Objects with a static electric charge can exert a force on other objects (that contain electric charge).
  3. The electrostatic force acts at a distance.
  4. Objects with opposite electric charges attract each other.
  5. Objects with the same electric charge as each other repel each other.

Keywords

  • Static electricity - is caused by the build-up of charge on insulators.

  • Positive charge - is attracted to a negative charge.

  • Negative charge - is attracted to a positive charge.

  • Electrostatic force - is a force acting between charges.

Common misconception

Pupils often think ‘negative’ refers to a neutral material, that there is only one type of charge and that friction creates charge.

The understanding of the particle model of matter needs to be secure before introducing atomic structure. Using dynamic models to help pupils visualise what is happening to the negative charge helps them progress in their thinking.


To help you plan your year 8 science lesson on: Static electricity, download all teaching resources for free and adapt to suit your pupils' needs...

Link pupils' own experiences of static electricity to examples in the lab that illustrate its key properties. Introduce pupils to the concept of positive and negative charges and encourage them to describe their properties by investigation and comparing their explanations to a model .
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Content guidance

  • Risk assessment required - equipment
supervision-level

Supervision

Adult supervision required

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Licence

This content is © Oak National Academy Limited (2025), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Lesson video

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6 Questions

Q1.
1. Which of these materials is a good electrical conductor?
plastic
glass
rubber
Correct answer: copper
Q2.
What is an insulator?
Correct answer: a material that does not allow electricity to pass through
a device that generates electricity
a material that allows electricity to pass through
a type of battery
Q3.
Which of the following are carry a charge?
atom
Correct answer: proton
neutron
Correct answer: electron
Q4.
Which of the following statements about the structure of an atom is correct?
protons orbit the nucleus
electrons have a relative mass of 1
electrons are located in the nucleus
Correct answer: electrons orbit the nucleus
Q5.
What is the charge on an electron?
positive
Correct answer: negative
neutral
Q6.
What happens when you rub your hands together quickly?
they get colder
Correct answer: they heat up due to friction
they become electrically charged
they start glowing

6 Questions

Q1.
Which of the following things need to be done to electrostatically charge a plastic ruler?
connect it to a 9 V battery with a wire
connect it to 230 V mains electricity
rub it with aluminium foil
Correct answer: rub it with a cloth
Q2.
Which two of the following are the types of electrostatic charge?
neutral
Correct answer: positive
Correct answer: negative
north
south
Q3.
A charged ruler is able to pick up the uncharged pieces of paper as shown. Which of the following statements is correct?
An image in a quiz
Correct answer: there is an electrostatic force of attraction between the ruler and paper
there is an magnetic force of attraction between the ruler and paper
there is an gravitational force of attraction between the ruler and paper
Q4.
Which of the following statements can correctly describe the ruler shown? Select all that apply.
An image in a quiz
Correct answer: the ruler is electrostatically charged
the ruler has a positive and negative terminal
Correct answer: the ruler has a positive charge
the ruler is magnetic
Q5.
Which of the following will the two balloons shown experience due to their electrical charges?
An image in a quiz
an upward force
a downward force
Correct answer: a force of attraction
a force of repulsion
Q6.
The ends of the plastic strip shown are pushing away from each other. Which of the following statements can explain why? Select all that apply.
An image in a quiz
Correct answer: the plastic strip is charged
Correct answer: the charge on both ends of the strip is the same
Correct answer: the strip has been rubbed with cloth
the strip has been magnetised
Correct answer: like charges repel

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