Question

boykin invented more than 25 devices! his most famous invention improved a heart - helping device called the pacemaker. if a heart does not beat normally, a pacemaker sends a charge. this small amount of electricity fixes the heartbeat.
this pacemaker is powered by batteries. the wires send electricity from the pacemaker to the heart.
complete the chart. what does \charge\ mean in this passage?

Explanation:

The context clue "small amount of electricity" directly relates to the concept of electrical energy. In the context of a pacemaker sending a charge, it refers to the electrical energy it transmits.

Answer:

how much energy something has