Common Assessment Review

A 1 Ω and 2 Ω resistor are connected in parallel to a 10 V battery. Determine the total current of the circuit.

• 3.33 A

• 6.67 A

• 15 A

• 25 A

The diagram shows a circuit with two resistors. What is the reading on ammeter A?

• 1.3 A

• 3.0 A

• 1.5 A

• 0.75 A

Determine the power for this circuit if the current is 0.75 amps. (Power = Voltage x Current)

• 9 Watts

• 15 Watts

• 12 Watts

• Cannot be determined

Current and resistance have a ___________ relationship.

• Inverse

• Direct

• Inversely squared

• Open

Two identical light bulbs are wired to a battery in series. Which of the following actions would cause the greatest increase of power used by each light bulb?

• Connecting a third, identical light bulb in series

• Connecting a two more identical light bulbs in series.

• Rewiring the circuit to be parallel.

• Connecting a resistor in series.

Where should you place a switch in order to ONLY control the 2 Ω resistor?

• A

• B or C

• D

• none of them

Tags

NGSS.HS-ETS1-3

If a student wishes to measure the voltage drop across the 6 Ω resistor, they should place the terminals of a voltmeter:

• between points a and b.

• between points b and c.

• between points c and d.

• between two of any of these points in this circuit.

The diagram below shows an electrical circuit with three bulbs and three switches. The switches are labeled X, Y, and Z. When all three switches are closed all three bulbs are lit. Which of the following statements describes what will happen if switch Y is opened?

• Only bulb 1 will be lit.

• Only bulb 2, 3 will be lit.

• All three bulbs will be lit.

• None of the bulbs will be lit.

Tags

NGSS.MS-PS2-3

The direction of the conventional current (the direction a positive charge would flow) in this circuit could best be described as:

• clockwise

• counter clockwise

• negative to positive

• towards the battery

A student would like to place a switch in this circuit so that it controls only light bulb 3 (the third, counting from the left). The student should:

• place the switch on the right side of bulb 3.

• place the switch on the negative side of the battery.

• rewire the circuit from series to parallel and place the switch on the branch for light bulb 3.

• rewire the circuit from series to parallel and place the switch as close to the battery as possible in the circuit.

Tags

NGSS.HS-ETS1-2