change,current,time

• What is the definition of charge?

  Charge is a measure of total current over time
• How can charge be compared to water flow?

  Charge is like total water flowed over time
• What symbol represents charge?

  Charge is represented by the letter q
• In what unit is charge measured?

  Charge is measured in coulombs
• What is the equation for calculating charge?

  Charge equals current multiplied by time
• If a kettle draws 12 amps for 50 seconds, how much charge passes through?

  600 coulombs
• How do you find the current if charge and time are given?

  Rearrange to i = q / t
• How do you convert kilo coulombs to coulombs?

  Multiply by 1000
• How many seconds are in two hours?

  7200 seconds
• If a phone charger transfers 43.2 kilo coulombs in two hours, what is the current?

  6 amps
• What are the steps to calculate charge from current and time?

  1. Identify current in amps (i)
  2. Identify time in seconds (t)
  3. Use the equation: charge (q) = i × t
• What are the steps to find current from charge and time?

  1. Identify charge in coulombs (q)
  2. Identify time in seconds (t)
  3. Rearrange the equation: i = q / t