Mechanically, electrically, by heating, by radiation

Cards (71)

  • What is energy transfer?
    How energy moves or changes form
  • If the object is released from the right side, which direction will it move?
    The object will move from right to left
  • How are the three electrical quantities related to each other?
    The relationship between voltage, current, and resistance is described by Ohm's law:
    V = I * R
    where V is voltage, I is current, and R is resistance.
  • What is the relationship between potential energy and kinetic energy shown in the image?
    As potential energy decreases, kinetic energy increases
  • How does the speed of the object change as it moves from left to right?
    The speed of the object increases from slow to fast to fastest
  • What occurs to kinetic energy as an object gains height?
    It converts to potential energy
  • What is the state of energy at rest positions?
    All energy is potential
  • What does it mean that energy is always conserved?
    Energy is never created or destroyed
  • What is the unit of voltage?
    Volt
  • What are the two types of energy that transform into each other during movement?
    Potential energy and kinetic energy
  • How does the kinetic energy change as the object moves from left to right?
    The kinetic energy increases as the object moves from left to right.
  • What does voltage do in a circuit?
    It pushes current through the circuit
  • What is the name of the electromagnetic spectrum shown in the image?
    Electromagnetic spectrum
  • What is current defined as?
    Flow of charge
  • When does energy transfer occur during motion?
    As motion slows at maximum height
  • What is the formula that relates voltage, current, and resistance?
    V=V =IR IR
  • How can the relationship between voltage, current, and resistance be visualized?
    • Voltage is like a pulling force (Volt)
    • Current is the flow (Amp)
    • Resistance controls the flow (Ohm)
  • How do higher frequency waves compare to lower frequency waves?
    Higher frequency waves have shorter wavelengths
  • How does resistance affect the flow of current in a circuit?
    It controls how tightly the rope is held
  • What are the two main types of energy shown in the image?
    • Potential energy
    • Kinetic energy
  • If the object is released from the left side, which direction will it move?
    The object will move from left to right.
  • What creates a convection current in water?
    Warmer water rising and cooler water sinking
  • If the heat source was turned off, how would the circulation or movement of the contents in the pot be affected?
    The circulation would slow down or stop
  • How does the potential energy change as the object moves from left to right?
    The potential energy decreases as the object moves from left to right.
  • What are the key points regarding energy during a swing?
    • At rest positions: All energy is potential (height maximized)
    • Bottom position: All energy is kinetic (speed maximized)
    • Energy continuously transfers between forms during swing
  • What is the state of energy at the bottom position of a swing?
    All energy is kinetic
  • How does the function of the different regions of the electromagnetic spectrum vary?
    • Gamma-rays and X-rays have high energy and can penetrate matter
    • Ultraviolet, visible, and infrared are used for imaging and lighting
    • Microwaves are used for heating and communication
    • Radio waves are used for broadcasting and communication
  • If you wanted to observe the internal structure of a material, which region of the electromagnetic spectrum would you use?
    X-rays
  • What are the steps in the convection process when heating water?
    1. Heat source warms bottom layer
    2. Water becomes less dense and rises
    3. Cooler water sinks to replace it
    4. Cycle repeats, distributing heat
  • What is the frequency range of the visible spectrum shown in the image?
    FREQUENCY
  • What are the three electrical quantities represented in the image?
    • Volt
    • Amp
    • Ohm
  • What do electromagnetic waves carry through space?
    Radiant energy
  • What is the wavelength range of the visible spectrum shown in the image?
    380-780 nm
  • What are the components of the electromagnetic spectrum?
    1. Gamma rays
    2. X-rays
    3. Ultraviolet
    4. Visible light
    5. Infrared
    6. Microwaves
    7. Radio waves
  • How does convection transfer heat?
    Heat is transferred by the movement of a fluid (liquid or gas).
  • What are the descriptions of the methods of energy transfer?
    • Mechanically: Transfer through forces acting on objects
    • Electrically: Flow through electrical circuits
    • By Heating: Thermal energy transfer methods
    • By Radiation: Transfer through electromagnetic waves
  • How can you use Ohm's law to solve for an unknown electrical quantity?
    • If you know any two of the three quantities (V, I, R), you can use Ohm's law to solve for the third.
    • For example, if you know the voltage (V) and resistance (R), you can solve for the current (I) using the formula I = V/R.
  • What type of cooking process is being depicted in the image?
    • The image depicts the process of boiling, where the contents of the pot are heated to the boiling point
  • What are the three modes of heat transfer shown in the image?
    • Conduction
    • Convection
    • Radiation
  • What is the name of the process shown in the image where heat is transferred through electromagnetic waves without the need for a medium?
    Radiation