energy transfer

• What is energy defined as?

  The capacity to do work or cause change
• What is the formula for Kinetic Energy (KE)?

  $E_k =$$\frac{1}{2} mv^2$
• What does Kinetic Energy depend on?

  Mass and velocity of the object
• What is Potential Energy (PE)?

  Energy stored due to position or condition
• What is Gravitational Potential Energy (GPE)?

  Energy due to an object's height
• What is the formula for Gravitational Potential Energy (GPE)?

  $E_g =$$mgh$
• What does Gravitational Potential Energy depend on?

  Mass, gravity, and height of the object
• What is Elastic Potential Energy?

  Energy stored in stretched or compressed materials
• What is Chemical Energy?

  Energy stored in chemical bonds
• When is Chemical Energy released or absorbed?

  During chemical reactions
• What is Thermal Energy also known as?

  Heat
• What causes Thermal Energy in an object?

  Random motion of molecules or atoms
• What is Electrical Energy?

  Energy carried by moving charges
• What is Nuclear Energy?

  Energy stored in the nucleus of an atom
• When is Nuclear Energy released?

  During nuclear reactions
• What is Light Energy?

  Energy carried by electromagnetic waves
• What is Sound Energy?

  Energy carried by sound waves
• What is the formula for Work?

  $W =$$Fd$
• What is the formula for Power?

  $p =$$\frac{W}{t}$
• How is Efficiency expressed?

  As a percentage
• What is the formula for Efficiency?

  $\text{Efficiency} =$$\frac{\text{useful energy output}}{\text{total energy input}} \times 100\%$
• What is the Conservation of Energy principle?

  Energy cannot be created or destroyed
• What is Energy Transfer?

  Movement of energy from one place to another
• What is Energy Transformation?

  Change of energy from one form to another
• What is Mechanical Energy?

  Sum of kinetic and potential energy
• What is the SI unit of energy?

  Joule (J)
• What does one Joule represent?

  Work done by one newton over one meter
• What is the definition of efficiency in machines?

  How good a machine is at its job
• How is efficiency calculated?

  Efficiency = useful energy given out / total energy put in × 100
• What are the units of efficiency?

  Percent (%)
• What does work represent in energy transfer?

  Energy transferred when work is done
• How is work done calculated?

  Work done = force × distance moved in direction of the force
• What is the formula for work done in letters?

  $W =$$Fd$
• What is the unit of work done?

  Joules (J)
• What is kinetic energy?

  The energy an object has due to its movement
• How is kinetic energy calculated?

  Kinetic energy = $\frac{1}{2} \times mass \times velocity^2$
• What is the formula for kinetic energy in letters?

  $E_k =$$\frac{1}{2} mv^2$
• What are the units of kinetic energy?

  Joules (J)
• What is gravitational potential energy?

  The energy an object has due to its height
• How is gravitational potential energy calculated?

  Gravitational potential = mass × gravitational constant × height