PS 6.2 Electric Current

What is the term used to describe the flow of electric charge?

• Electric Current

• Potential Difference

• Electrical Resistance

• Ohm's Law

Answer explanation

The term 'Electric Current' refers to the flow of electric charge in a circuit. It is measured in amperes and is fundamental to understanding how electrical systems operate.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Which term refers to the difference in electric potential between two points?

• Electric Current

• Potential Difference

• Electrical Resistance

• Ohm's Law

Answer explanation

The term 'Potential Difference' specifically refers to the difference in electric potential between two points in a circuit, making it the correct choice. Other options describe different electrical concepts.

What is the measure of how much a material opposes the flow of electric current?

• Electric Current

• Potential Difference

• Electrical Resistance

• Ohm's Law

Answer explanation

The measure of how much a material opposes the flow of electric current is called Electrical Resistance. It quantifies how strongly a material resists the movement of electrons, making it the correct choice.

Which law relates voltage, current, and resistance in an electric circuit?

• Electric Current

• Potential Difference

• Electrical Resistance

• Ohm's Law

Answer explanation

Ohm's Law defines the relationship between voltage, current, and resistance in an electric circuit, stating that voltage equals current multiplied by resistance (V = I × R). Thus, the correct answer is Ohm's Law.

What is the term for the flow of electric charge in a circuit?

• Voltage difference

• Electric current

• Resistance

• Ohm’s law

Answer explanation

The flow of electric charge in a circuit is called electric current. It is measured in amperes and represents the movement of electrons through a conductor, distinguishing it from voltage difference and resistance.

What is the term for the potential difference between two points in a circuit?

• Electric current

• Resistance

• Voltage difference

• Ohm’s law

Answer explanation

The term for the potential difference between two points in a circuit is 'voltage difference'. It measures how much energy is available to move charges between those points, distinguishing it from current and resistance.

What is the term for a closed loop that allows electric current to flow?

• Electric circuit

• Voltage difference

• Resistance

• Ohm’s law

Answer explanation

An electric circuit is a closed loop that allows electric current to flow. It consists of a power source, conductors, and a load, enabling the movement of electrons. The other options do not describe a closed loop.

What is the term for the opposition to the flow of electric current in a material?

• Voltage difference

• Electric current

• Resistance

• Ohm’s law

Answer explanation

The term for the opposition to the flow of electric current in a material is 'Resistance'. It quantifies how much a material resists the flow of electric charge, making it the correct choice among the options provided.

What law relates voltage, current, and resistance in an electric circuit?

• Electric circuit

• Voltage difference

• Resistance

• Ohm’s law

Answer explanation

Ohm’s law defines the relationship between voltage, current, and resistance in an electric circuit, stating that voltage equals current multiplied by resistance (V = IR). Thus, the correct answer is Ohm’s law.

What does SI stand for in the context of measurement systems?

• Standardized Index

• Scientific Integration

• International System of Units

• Systematic Information

Answer explanation

SI stands for International System of Units, which is the standard system used globally for measurement. It provides a consistent framework for scientific and technical measurements, making it the correct choice.

Tags

NGSS.HS-PS2-1