Electrostatics

What is the SI unit for charge?

• Joules

• Coulombs

• Newtons

• Meters

Which two particles are attracted to each other?

• Two neutrons

• A proton and an electron

• Two protons

• An electron and a neutron

Electric Field strength depends on what

• charge

• distance

• charge and distance

• electric force

Which of the following materials conducts electricity the best?

• plastic

• rubber

• metal

• glass

Calculate the force exerted between two charged objects separated by a distance of 0.6 m. One object has a charge of -5 C and the other has a charge of +2.0 C.

• -1.5 x 10^-11 N

• 2.5 x 10^-11 N

• -2.5 x 10¹¹ N

• -7.5 x 10^-10 N

A repulsive force exists between which two particles?

• Two neutrons

• An electron and a neutron

• An electron and a proton

• Two electrons

How close must two electrons be to generate a force of 1000 N. Charge of an electron = 1.6x10^-19 C

• 4.8E-16
• 2.35E-31
• 1.4E-10
• 1.2E-5

which is the field for opposite charges

• 
• 
• 
• 

The process of removing excess charge by touching an object to Earth

• Electrostatics

• Charging by Conduction

• Grounding

• Equipotential

A material, such as glass, through which a charge will not move easily.

• Insulator

• Capacitor

• Grounding

• Conductor