Task 2 and before

• What is the definition of energy transfer?

  Energy transfer is the movement of energy without changing forms.
• How does energy transformation differ from energy transfer?

  Energy transformation is the change of the form of energy.
• What are the types of potential energy?

  • Gravitational Potential Energy (GPE)
  • Elastic Potential Energy (EPE)
  • Chemical Potential Energy (CPE)
  • Nuclear Potential Energy (NPE)
• What is Gravitational Potential Energy (GPE)?

  GPE is energy stored in gravitational pull.
• What is Elastic Potential Energy (EPE)?


  EPE is energy stored in elastic objects.
• What is Chemical Potential Energy (CPE)?

  CPE is energy stored in chemicals, released when burned.
• What is Nuclear Potential Energy (NPE)?

  NPE is energy stored in the atom nucleus, which can cause explosions.
• What are the types of kinetic energy?

  • Electrical Energy
  • Sound Energy
  • Heat Energy
  • Light Energy
  • Mechanical Energy
• What is the most useful form of energy?

  Electrical Energy is the most useful form of energy.
• What does Sound Energy do?

  Sound Energy makes noise.
• What does Heat Energy do?

  Heat Energy makes things hot.
• What does Light Energy do?

  Light Energy makes things brighter.
• What is Mechanical Energy?

  Mechanical Energy is a mixture of both potential and kinetic energy.
• What is the formula for Gravitational Potential Energy (GPE)?

  GPE = mgh
• What do the variables in the GPE formula represent?

  m is mass in kg, g is 9.8 m/s², and h is height in metres.
• What is the formula for Kinetic Energy (KE)?

  KE = ½ mv²
• What do the variables in the KE formula represent?

  m is mass in kg and v is velocity in m/s.
• What are the three ways heat energy can be transferred?

  • Conduction
  • Convection
  • Radiation
• How does conduction work?


  Conduction works through solid objects, with metals being good conductors.
• What are insulators?

  Insulators are materials that do not transfer energy well, such as rubber.
• How does convection work?

  Convection works through convection currents, where hotter fluids rise and colder fluids fall.
• How does radiation work?

  Radiation works through waves, such as infrared and visible light.
• What are examples of energy transformation scenarios?

  • Electrical energy to heat energy in electrical heaters
  • Chemical potential energy in batteries to electrical energy
  • Waste products such as heat energy

  
• What does the 0th Law of Thermodynamics state?

  The 0th Law of Thermodynamics states that hot stuff moves to cold stuff.
• What does the 1st Law of Thermodynamics state?

  The 1st Law of Thermodynamics states that energy cannot be created nor destroyed, only transformed.
• What is a wave?

  A wave is a regular periodic disturbance in a medium or space that carries energy from one place to another.
• What are the two classifications of waves?

  • Longitudinal waves
  • Transverse waves
• How do transverse waves move?

  Transverse waves move through matter in an up and down motion.
• What is required for transverse waves to travel?

  Transverse waves can travel through a medium and some can pass through vacuums.
• How do longitudinal waves look?

  Longitudinal waves look like springs that are being squashed and stretched.
• What are compression and rarefaction in longitudinal waves?

  Compression is the squishing, while rarefaction is the stretching of the wave.
• What are the components of a wave?

  A wave has a crest, trough, amplitude, and wavelength.
• What is amplitude in a wave?

  Amplitude is the distance from the base to the top of a wave.
• What is wavelength?


  Wavelength is the distance between one point on one wave and the same point on the next wave.
• What is a period in wave motion?

  A period is the time it takes for one wavelength to pass a specific point.
• What is frequency in wave motion?

  Frequency is the number of wavelengths that pass a point in a given time frame.
• How does amplitude relate to energy?

  Higher amplitude waves have higher energy.
• How does period relate to frequency?

  A smaller period results in increased frequency.
• What is the formula for wave speed?

  v = d/t
• What does the variable 'v' represent in wave equations?

  'v' represents wave speed.