| Method |
Precise Learning Objective |
Linked |
Question / Activity
(Designed for maximum working out) |
Stepping Stones |
Pitstop Check
(Thinking Map) |
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The further away from the charged object, the weaker the field |
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When is an electric field of a charged object weakest? |
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When certain insulating materials are rubbed against each other they become electrically charged. |
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When do certain insulating materials become charged? What is static electricity?
https://www.youtube.com/watch?v=fT_LmwnmVNM
Phet - Creating static
https://phet.colorado.edu/sims/html/john-travoltage/latest/john-travoltage_en.html |
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A second charged object placed in the field experiences a force. |
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What happens to a second charged object placed in the electric field of the first charged object? |
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Negatively charged electrons are rubbed off one material and on to the other. |
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How do certain insulting materials become charged in terms of electrons? Extended writing:
Describe and explain how rubbing materials against each other can get them to become charged, in terms of particle movement. |
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Two objects that carry the same type of charge repel. |
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What happens when two objects of the same type of charge are close together? |
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The electric field is strongest close to the charged object. |
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When is an electric field of a charged object strongest? |
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The force gets stronger as the distance between the objects decreases. |
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What is the relationship between force and distance between two charged objects? |
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Two objects that carry different types of charge attract. |
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What happens when two objects of opposite type of charge are close together? Investigate the effect charged objects have on other objects placed near it – both charged and uncharged?
Phet - Interacting charges
https://phet.colorado.edu/sims/html/balloons-and-static-electricity/latest/balloons-and-static-electricity_en.html |
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Students should be able to draw the electric field pattern for an isolated charged sphere
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How would you draw the electric field pattern for an isolated charged sphere? Diagrams of electric fields
http://www.cyberphysics.co.uk/topics/electricity/higher_electricity/electric_field.htm |
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The material that gains electrons becomes negatively charged. The material that loses electrons is left with an equal positive charge. |
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What is the charge of a material that loses the electrons? |
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Attraction and repulsion between two charged objects are examples of non-contact force. |
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What type of force can the attraction and replulsion between two charged objects be classified as? |
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Students should be able to explain the concept of an electric field |
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What is an electric field? |
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Students should be able to describe the production of static electricity, and sparking, by rubbing surfaces
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How is static electricity and/or a spark produced? Dangers of static
https://www.youtube.com/watch?v=FzsTamPPnHc |
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Students should be able to explain how the concept of an electric field helps to explain the non- contact force between charged objects as well as other electrostatic phenomena such as sparking. |
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What happens to the electric field of charged objects? |
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Students should be able to describe evidence that charged objects exert forces of attraction or repulsion on one another when not in contact
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How does a charged object exert forces of attraction and repulsion when not in contact with another object? |
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Students should be able to explain how the transfer of electrons between objects can explain the phenomena of static electricity. |
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How can the phenomena of static electricity be explained? |
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