Expert Physics Tutoring

MS1:

- Potential energy is the energy an object has due to its position or condition (1)

- Unit is Joules (J) (1)

MS2:

- States that energy cannot be created or destroyed, it can only be transferred or changed in form (1)

- Describes how energy is transformed from one type to another, but the total energy remains the same (1)

- Provides real-world examples (1)

MS3:

- Identifies the correct equation: KE = mgh (1)

- Substitutes values correctly: KE = (2)(9.8)(10) (1)

- Gives final answer in Joules (1)

MS4:

- Work Done = Force × distance (1)

MS5:

- Mechanical energy is transferred from the person lifting the object (1)

- Gravitational potential energy is gained by the object (1)

MS6:

- Identifies the correct equation: Power = Work Done / Time (1)

- Assumes time is 1 second (1)

- Substitutes values correctly: Power = 500 / 1 (1)

MS7:

- Friction (1)

- Resistance (1)

MS8:

- Describes the use of a heat source to boil water (1)

- Explains how the steam drives a turbine (1)

- Mentions the generator converting mechanical energy to electrical energy (1)

MS9:

- Identifies the correct equation: KE = 1/2mv² (1)

- Substitutes values correctly: KE = 1/2(1000)(20²) (1)

- Gives final answer in Joules (1)

MS10:

- Watt (W) (1)