Electronics 10 Quarter 1 Examination

What is the smallest unit of an element that retains its chemical properties?

• Atoms

• Compound

• Electron

• Molecules

How many electrons can the first energy level of an atom hold?

• 2

• 4

• 8

• 16

Which subatomic particle has a positive charge?

• Electron

• Neutron

• Nucleus

• Proton

Which subatomic particle has a negative charge?

• Electron

• Neutron

• Nucleus

• Proton

Which subatomic particle is responsible for carrying electric current?

• Electron

• Neutron

• Nucleus

• Proton

What is the unit of electric current?

• Ampere

• Ohm

• Volt

• Watt

What is the unit of resistance?

• Ampere

• Ohm

• Volt

• Watt

Which of the following is an example of a conductor of electricity?

• Copper

• Plastic

• Rubber

• Wood

Which of the following elements is a good conductor of electricity?

• Carbon

• Copper

• Oxygen

• Sulfur

What is the term for a bond formed by the sharing of electrons between atoms?

• Covalent bond

• Metallic bond

• Ionic bond

• Polar bond