electric fields

What creates an electric field

Electric charges

What is an electric field

the region (around a charged object) where another charged

object experiences a force

Where are electric fields created around

Any electrically charged objects

Describe the strength of a field in relation to distance to object/particle

Closer to object you get the stronger the field is the further away the weaker it is

How can you show an electric field and describe the position they are in

You can show an electric field around an object using field lines

Field lines go from positive to negative

They are at right angles to the surface

What does the closer the field lines suggest

Closer together the field lines are the stronger the field is

What happens to charged objects in an electric field

They feel a force, if they’re oppositely charged there will be an attractive force between them (electrostatic force / attraction)

If there have the same charge , the two particles/objects would repel each other (like charges repel)

Explain how sparking can be explained by electric fields

-sparks are caused when there is a high potential difference between a charged object and the Earth (or an earthed object).

– A high potential difference causes a strong electric field between a charged object and the earthed object.

– The strong electric field cause electrons in the particles to be removed (this is known as ionisation).

– air is normally an insulator but when it’s ionised it is more conductive, so our current can flow through it this is the spark