Basics of Electricity

Electricity is the flow of...

• Electrons

• Protons

• Atoms

• Neutrons

What materials allows all electrons to flow through them

• Rubber

• Insulators

• Conductors

• Resistors

What material does NOT allow any electrons to go through them?

• Metals

• Insulators

• Conductors

• Resistors

Voltage is the...

• amount of electrons flowing

• force or pressure behind current

• opposition to the current

• electrical power

Current is the...

• amount of electrons flowing

• force or pressure behind the electrons flowing

• opposition to the flow of electrons

• electrical power

Resistance is the...

• amount of electrons flowing

• force or pressure behind the electrons flowing

• opposition to the flow of electrons

• electrical power

When we increase resistance in a circuit, what happens to current?

• Current increases too.

• Current will decrease

• Current will stay the same.

• Current will leave.

Finish this statement: "The design process helps us..."

• Develop a solution to solve a problem

• Solve just technical problems

• Develop problems for solutions.

• Elaborate on solutions that already have been found.

From the choices below select the best reason why electricity is important to technology:

• Electricity is a form of energy powering important devices.

• Electricity can be used to zap things.

• Every technology needs electricity to work.

• None of the above

From choices below what is the best description of what needs to happen for electricity to work.

• Every circuit needs a resistor in order to function.

• Electrons need a complete path of insulators to flow.

• Batteries are the only source of energy that can make electricity.

• Electrons need a complete circuit to flow