9. Work & Energy

A battery is connected to a $21.0\Omega$ resistor. If the circuit operates for one minute, how much work $W$ does the battery perform during this time? (Assume the current through the resistor is $I$ and the battery voltage is $V$.)

A car of mass $m$ starts from rest at the top of a hill of height $h$ and coasts down into a valley, neglecting friction and air resistance. What will be the car's speed as it coasts into the gas station on the other side of the valley at ground level?

How does energy transform from $\mathrm{potential energy}$ to $\mathrm{kinetic energy}$ in a system?

Which statement best describes the difference between $\mathrm{potential energy}$ and $\mathrm{kinetic energy}$?

Which of the following is an example of mechanical energy?

A proton is released from rest at the dot in a region with a uniform electric field pointing to the right. Afterward, the proton:

In the context of energy carriers, why are they often described as being either 'full' or 'empty'?

Which of the following is an example of $\mathrm{kinetic}\mathrm{energy}$?

Which of the following statements is true regarding $\mathrm{potential} \mathrm{energy}$ and $\mathrm{kinetic} \mathrm{energy}$?

In the photo, a roller coaster is at the top of a hill. What is happening in terms of $KE$ (kinetic energy) and $PE$ (potential energy)?

Which of the following statements best describes potential energy?

Which physical property is kinetic energy most directly related to?

In an air-standard Otto cycle, what is the state of the working fluid at the beginning of the compression process?

Which of the following is an example of kinetic energy being converted to potential energy?

Which of the following processes would require an input of energy?