The motion of charged particles causes electrical effects, small shocks, lightning and sparks. Electrical fields cause forces to act on charged particles.
What is the charge on the electron?
During the process of charging by friction, which particle is transferred?
What charge will a duster have if it has lost electrons?
A negative charge will do what to another negative charge?
What force is there between a positively charged object and a negatively charged object?
No force acts
Why does a Van de Graaff generator make a person’s hair stand on end?
Each strand of hair picks up a different charge and repels each other
Each strand of hair picks up the same charge and repels each other
Each strand of hair picks up a different charge and attracts each other
How can a dangerous spark discharge be prevented?
Earthing with a conductor
Earthing with an insulator
Wearing rubber boots
What does an arrow on an electric field diagram show?
Which way a neutral particle would be pushed
Which way a positive charge would be pushed
Which way an electron would be pushed
How is an electric field different if the field lines are closer together?
Field is unchanged
Field is stronger
Field is weaker
Why are insecticide spray droplets given a charge?
So they attract each other and clump together
So they remain in the atmosphere for a long time
So the droplets spread out evenly and fall quickly to the ground