Science

• What is Voltage and what is it measured in?

  The energy applied to push electric charges through a circuit, measured in volts.
• What is current and what is it measured in?

  The flow of electric charges through a circuit, carrying energy from the source to the components, measured in amperes (amps)
• What is resistance and what is it measured in?

  The flow of electric charges through a circuit, carrying energy from the source to the components, measured in amperes (amps).
• What is a series circuit?

  • Components are connected in a single path, so the same current flows through each component
  • Total resistance is the sum of the individual resistances
• What is a parallel circuit?

  • Components are connected in separate branches, allowing different currents to flow through each branch
  • Total resistance is less than the smallest individual resistance
• Examples of a where a series circuit or a parallel circuit is used

  Series: Christmas tree lights

  Parallel: In homes for electrical outlets
• What does the law of conservation of energy state?

  The law of conservation of energy states that energy cannot be created or destroyed, only transferred or transformed from one form to another.
• What causes some of the energy to get lost when it is getting transferred or transformed?

  Heat due to inefficiencies in the system
• What processes lead to a reduction in useable heat during energy transfers and transformations?

  In energy transfers and transformations, various processes such as friction, air resistance, and heat loss can occur, leading to a reduction in usable energy, causing it to not be 100% efficient.
• Viewpoints and choices to consider when making decisions about the use of non-renewable energy resources

  • Environmental impact of resource extraction and use
  • Finite nature of non-renewable resources
  • Potential for technological advancements to improve efficiency
  • Importance of transitioning to renewable energy sources for long-term sustainability
• Describe Ohm's Law and the triangle used to find voltage, resistance and current?

  1. Current flowing through a conductor is directly proportional to the voltage applied across it and inversely proportional to the resistance of the conductor2. Mathematically expressed as I = V/R, where I is the current, V is the voltage, and R is the resistance