Physics Circuits

A parallel connection is a type of electrical circuit in which there is a single current pathway.

• True
• False

A series connection is a type of electric circuit in which there are multiple paths.

• True
• False

A device that controls current in electric circuits.

• Resistor

• Battery

An electric current is a flow of charged particles.

• True
• False

Tags

NGSS.HS-PS2-5

If a 75 W light bulb operates at a voltage of 120 V, what is the current in the bulb?

• 0.63 A
• 1.6 A
• 9.0 x 10³ A
• 1.1 x 10^-4 A

Tags

NGSS.HS-PS2-5

Three resistors with values of 4.0 Ω, 6.0 Ω and 8.0 Ω respectively, are connected in series. What is their equivalent resistance?

• 18
• 8.0
• 6.0
• 1.8

Three resistors with values of 4.0 Ω, 6.0 Ω and 10.0 Ω are connected in parallel. What is their equivalent resistance?

• 20.0 Ω
• 7.3 Ω
• 6.0 Ω
• 1.9 Ω

The rate at which electric energy is transferred is:

• power
• voltage
• resistance
• current

Tags

NGSS.HS-PS2-5

The current flowing in an electric circuit can be increased by:

• increasing voltage or decreasing resistance.
• decreasing voltage or increasing resistance.
• increasing voltage and increasing resistance.
• decreasing voltage and decreasing resistance.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

In an electric circuit, charges:

• flow around in a closed loop.
• get energy from an external source.
• flow from higher potential to lower potential.
• do all of these answer choices.

Tags

NGSS.MS-PS3-5