EIM 10 REVIEW 1ST PART

What is electricity?

• Flow of protons through a conductor

• Flow of electrons through a conductor

• Movement of atoms inside a wire

• Heat energy moving in metals

Which type of electricity is stored and stationary?

• Static electricity

• Current electricity

• Magnetic electricity

• Chemical electricity

Which type of electricity powers devices like flashlights and mobile phones?

• Static electricity

• Current electricity

• Thermal electricity

• Chemical electricity

What particle carries a negative charge in an electric current?

• Proton

• Neutron

• Electron

• Atom

What unit is used to measure voltage?

• Ohm (Ω)

• Watt (W)

• Volt (V)

• Ampere (A)

What does current measure?

• Speed of light in a wire

• Flow rate of electrons

• Energy of protons

• Pressure in a water pipe

Which of the following materials is the best conductor of electricity?

• Aluminum

• Copper

• Silver

• Gold

Which material is a good electrical insulator?

• Rubber

• Glass

• Copper

• Silver

What kind of circuit will not work because it has a gap?

• Open circuit

• Closed circuit

• Series circuit

• Parallel circuit

In a parallel circuit, if one bulb burns out:

• All other bulbs stop working

• The circuit stops entirely

• The other bulbs keep working

• Voltage becomes zero