5.1 Concepts & Units

What is the unit for electrical charge?

• coulombs
• amperes
• volts
• ohms

What is the symbol for charge?

• q
• V
• I
• Ω

What is 'e'?

• elementary charge
• electron
• charge

What happens when a neutral charge object lost electrons?

• has positive charge
• has negative charge

What happens when a neutral charged object gained electrons?

• has negative charge
• has positive charge

is it possible to remove/gain protons instead of electrons?

• no
• yes

What is the symbol for electrons?

• e^-

• e

What particle is +1.6x10^-19 C?

• p⁺ charge

• +e charge

What is quantised?

• amount based on multiples of a basic unit.
• amount based on big quantities

What type of material is when you have free electrons?

• conductor
• insulator