Electricity

Which two particles are attracted to each other?

• Two neutrons

• A proton and an electron

• Two protons

• An electron and a neutron

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

How is the electric force between two charges affected when both of the charges are cut in half?

• decreases four times

• no change

• increase four times

• increases 2 times

What happens to the electric force between two charges when the distance is in creased four times?

• 4 times more electric force

• 16 time more electric force

• 16 times less electric force

• 64 times more electric force

Coulomb's law says that the force between any two charges depends

• directly on the size of the charges

• inversely on the square of the distance between the charges

• both are correct

Tags

NGSS.HS-PS2-4

What is the electric force between a 2.5 C charge and a negative 1 C charge when they are separated by a distance of 20 m?

• 1,125,000,000 N

• 56,250,000 N

• 0.125 N

• 0.00625 N

A 2-C charge and 4 -C charge attract each other with 10 N of force. How much will a 2-C charge and 8-C charge attract each other when placed the same distance apart?

• 5 N

• 12 N

• 10 N

• 20 N

What is the major difference between static electricity and current electricity?

• Current electricity involves a continuous flow of neutrons; static electricity is a sudden transfer of protons
• Current electricity can be deadly; static electricity is almost always safe
• In current electricity, there's a single transfer of electrons; in static electricity, there's a steady flow of electrons
• Current electricity involves a flow of electrons; static electricity involves a single transfer of electrons

Which of the following atoms is considered neutral?

• An atom with 5 protons, 6 neutrons, and 5 electrons.

• An atom with 5 protons, 5 neutrons, and 6 electrons.

• An atom with 6 protons, 5 neutrons, and 5 electrons.

• An atom with 6 protons, 6 neutrons, and 5 electrons.

Which of the following an insulator?

• copper
• wood
• silver
• salt water

A material through which a charge will not move easily is called...

• insulator

• conductor

• charger