Electricity Test Review

Maya is setting up a simple electrical circuit for her science project. She needs to identify the component labeled A in the diagram. What is A? Mark only one oval.

• Battery

• Resistor

• Switch

• Lightbulb

• Ammeter

Priya is setting up a simple circuit for her science project. She needs to identify which arrow shows the direction that electrons flow. Mark only one oval.

• A

• B

• C

• D

• E

Tags

NGSS.HS-PS2-5

Scarlett is setting up a simple circuit for her science project. She needs to identify which arrow shows the direction the current flows. Mark only one oval.

• A

• B

• C

• D

• E

Arjun and Ava are setting up a circuit for their science project. They want to know which setup has the LEAST amount of total resistance. Mark only one oval.

• Parallel

• Series

Abigail and Nora are setting up electrical circuits for their science project. Abigail sets up a circuit in Parallel, while Nora sets up a circuit in Series. Which setup has the MOST current? (Remember if there is MORE resistance, it will DECREASE current.) Mark only one oval.

• Parallel

• Series

James is setting up a circuit for his science project. How does the type of wire he uses affect the current? Mark only one oval.

• Metals have more delocalized electrons which lets the electrons move more easily along the wire

• Insulators have more delocalized electrons which will let the electrons move faster along the wire

• The colors of the wire affect the way the electrons move down the wire

• Current is affected the most by metals because it prevents the flow of the electrons

Tags

NGSS.HS-PS3-5

Anika is designing a circuit and is considering the impact of the resistor's design on the current density in the wire. What is true about the design of the resistor and its impact on the current density in the wire? Mark only one oval.

• A resistor that has a very small cross-sectional area will create a lesser electron drift velocity. This will increase the current density in the wire.

• Decreasing the length of the resistor will create a greater electron drift velocity. Because there will be less resistance, the current density in the wire will increase.

• Increasing the length of the resistor will create a greater electron drift velocity. Because there will be more resistance, the current density in the wire will increase.

• A resistor that has a very large cross-sectional area will create a lesser electron drift velocity. This will decrease the current density in the wire.

Priya is setting up a new home theater system and wants to ensure the best sound quality. For efficient electrical conduction, the wire connecting her speakers should be made of a material with a high number of .

• delocalized electrons

• bound electrons

• nonmetal electrons

• protons and electrons

Tags

NGSS.HS-PS3-5

Evelyn and Lily are setting up a science experiment with electrical circuits. They learned that both resistors should have a very cross-sectional area to increase flow of electrons.

Mark only one oval.

• large

• small

Aiden and Aria are setting up a circuit and want to increase the flow of electrons through it. Both resistors should have a to achieve this.

• short length

• long length

• high resistivity

• medium resistivity