Electric current is the continuous flow of __________ through a material.

What causes electric charges to flow in a circuit?

• Resistance

• Heat

• Voltage difference

• Magnetism

A circuit must be complete and unbroken for electric charges to flow.

• True

• False

What type of battery uses a conducting paste between two electrodes?

• Wet-cell battery

• Dry-cell battery

• Lead-acid battery

• Lithium ion battery

A __________ circuit is one where the current follows only one path.

Which type of battery is commonly found in phones, laptops, and electric vehicles?

• Lead-acid

• Lithium ion

• Dry-cell

• Alkaline

Resistance is measured in volts.

• True

• False

According to Ohm’s Law, voltage = current × __________.

What type of battery is made of lead and sulfuric acid and typically used in cars?

• Dry-cell

• Lithium ion

• Lead-acid

• Nickel-metal hydride

Tags

NGSS.MS-PS1-5

Alternating current constantly changes __________.

Tags

NGSS.HS-PS2-5