Circuits (Part 1)

Which diagram shows a functioning circuit?

Choose all that are true.

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Tags

NGSS.HS-PS2-5

Match the Si unit with the correct electrical property.

• Current

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• Voltage

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• Resistance

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Tags

NGSS.HS-PS2-5

What does Ohm's law state about the relationship between resistance, voltage, and current?

• Resistance equals voltage divided by current.

• Resistance equals current divided by voltage.

• Voltage equals resistance multiplied by current.

• Current equals voltage divided by resistance.

If a multimeter reads 0.5 amps and the voltage is 1.5 volts, what is the resistance in the circuit?

• 3 ohms

• 0.75 ohms

• 2 ohms

• 1 ohm

What device is used to measure the current in a circuit according to the passage?

• Multimeter

• Voltmeter

• Ammeter

• Ohmmeter

Arrange the following in the correct order to complete the formula for Ohm's Law.

a

b

c

Current

Resistance

Voltage

Calculate the resistance of a circuit with a voltage of 8 volts and 4 amps.

• 2 ohms

• 32 ohms

• 12 ohms

• 0.5 ohms

This circuit’s power source is a 9-volt battery. The current is 0.75 amps. The length, material, and thickness of the wire provide how much resistance?

• 6 ohms
• 12 ohms
• 15 ohms
• 9 ohms

Which diagram correctly shows the relationship between resistance, voltage and current?

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• 

If the (a)   of a circuit increases, and the (b)   is held constant, the (c)   will decrease. If the resistance of a circuit decreases, and the voltage is held constant, the current will (d)   .

• resistance
• voltage
• current
• increase