Potential Difference / Voltage

Potential difference is the ________ charges lose or gain across a circuit component.

• energy

• force

• resistance

• all of the above

Potential difference is measured in:

• amperes

• coulombs

• ohms

• volts

To measure the potential difference across a component, a voltmeter must be placed in _______ with the component.

• parallel

• series

• either

• neither

The potential difference across a switch would be:

• -1.5 V (a loss of 1.5 V)

• 0 V

• 1.5 V (a gain of 1.5 V)

• any of the above

The potential difference across a D-cell battery is:

• -1.5 V (a loss of 1.5 V)

• 0 V

• 1.5 V (a gain of 1.5 V)

• any of the above

If the battery is connected to a single load, the energy consumed by the load must be:

• less than 1.5 V

• 1.5 V

• greater than 1.5 V

• It cannot be determined.

If the battery is connected to two loads in series, the energy consumed by each load will be:

• less than 1.5 V

• 1.5 V

• greater than 1.5 V

• It cannot be determined.

If the battery is connected to two loads in parallel, the energy consumed by each load will be:

• less than 1.5 V

• 1.5 V

• greater than 1.5 V

• It cannot be determined.

The electrical energy consumed by the load is:

• dissipated by the air or another insulator

• transferred to another circuit

• converted to other forms of energy

• all of the above