A charge does not need to touch another to push it. It fills the space around itself with an electric field, a sort of invisible reach, and any charge that wanders in feels a force at once.
An electric field is a region where an electric charge experiences a force. Field lines point in the direction of the force on a positive charge, so they point away from a positive charge and toward a negative one. Around a point charge the field is radial; between parallel plates it is uniform.
An electric field is a region where an electric charge experiences a force. The field lines show the direction of the force on a positive charge, pointing away from positive and toward negative.
Around a point charge the field is radial; between two oppositely charged parallel plates it is uniform.
Place charges and plates and watch the field lines and the force on a small positive test charge.
Four quick checks. Each correct answer earns XP and lights this skill on your star map.
An electric field is a region where a charge experiences...
Electric field lines point...
The electric field around an isolated positive point charge is...
Between two oppositely charged parallel plates the field is...
A single charge gives a radial pattern, parallel plates give a uniform field.
Field lines show the direction of the force on a positive charge, so they leave a positive charge and enter a negative one. They never cross, and where they are closer the field is stronger.
Unlocks once the four checks above are done. Worth more XP, written in the style of Paper 2.
A small positive charge is placed between a positive plate and a negative plate. The force on it points...
Field lines are drawn around a negative point charge. They point...
Two electric field lines are shown crossing. This is wrong because field lines...
Electric fields are mapped. Keep the chain going.