Cycle 4 Assessment Review

What is the formula for Coulomb's law?

Tags

NGSS.HS-PS2-4

Which of the following devices is an example of using magnetic forces in everyday life?

• Lightbulb

• Generator

• Thermometer

• Stopwatch

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Describe how the electric force between two charges changes if the distance between them is doubled.

• The force remains the same.

• The force doubles.

• The force is halved.

• The force is reduced to a quarter.

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NGSS.HS-PS2-4

Which material can be used to demonstrate the process of induction?

• Glass

• Electroscope

• Plastic

• Wood

Explain the role of a voltmeter in a circuit.

• It measures the current flowing through the circuit.

• It measures the resistance of the circuit.

• It measures the potential difference across two points in the circuit.

• It measures the power used by the circuit.

Calculate the current flowing through a circuit with a potential difference of 12V and a resistance of 4Ω using Ohm's law.

• 2A

• 3A

• 4A

• 6A

What happens to the total resistance in a parallel circuit when more resistors are added?

• It increases.

• It decreases.

• It remains the same.

• It doubles.

Design a simple series circuit using a battery, a switch, and two lightbulbs. Describe the flow of current when the switch is closed.

• The current flows through one lightbulb only.

• The current flows through both lightbulbs in sequence.

• The current does not flow at all.

• The current flows directly back to the battery without lighting the bulbs.

Which of the following processes involves the conservation of charge?

• Evaporation

• Induction

• Combustion

• Photosynthesis

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NGSS.HS-PS2-4

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Predict the effect on the electric force if the charge of one object is tripled while the distance remains constant.

• The force is reduced to a third.

• The force remains the same.

• The force triples.

• The force is nine times greater.

Tags

NGSS.HS-PS2-4