Electricity 2nd ESO

What is electricity?

• GAS

• ENERGY

• LIQUID

• MATERIAL

What particles move from atom to atom?

• Protons

• Neutrons

• Electrons

• Nucleus

Which of the following materials are electrical insulators?

• wood, paper, water

• plastic, wood, ceramic

• water, cooper

• wood, paper and plastic

What particles are found in the nucleus?

• Neutrons

• Protons and electrons

• Neutrons and protons

• Neutrons and electrons

A buzzer transforms electrical energy into....

• Heat

• Light

• Movement

• Sound

If a component provides electrical energy to the rest of the circuit is called

• Generator

• Control element

• Insulator

• Conductor

Is the flow of electrons from atom to atom

• Electric pulse

• Electric energy

• Electric flow

• Electric current

Ohm´s formula is:

• V = R / I

• V = I / R

• I = R / V

• I = V / R

Calculate the resistance of a circuit if the: V=10v and I=5A

• 4

• 0,5

• 1/2

• 2

Which is the unit of meassurement of electrical current

• Ampers

• Volts

• Ohms

• Power