Exploring Non-Contact Forces Quiz

If two charged objects are placed near each other, which of the following statements is true about the electric field strength between them?

• It is stronger when the charges are farther apart.

• It is weaker when the charges are closer together.

• It is stronger when the charges are closer together.

• It remains constant regardless of the distance between the charges.

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DOK Level 2: Skill/Concept

A student conducts an experiment to measure the force between two charged objects. Which of the following factors should the student consider to ensure accurate results?

• The color of the objects.

• The distance between the objects.

• The material of the table.

• The time of day.

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DOK Level 2: Skill/Concept

Which of the following best describes the interaction between magnetic field lines when two magnets are brought close to each other?

• Field lines from like poles attract each other.

• Field lines from opposite poles repel each other.

• Field lines from like poles repel each other.

• Field lines from opposite poles do not interact.

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DOK Level 2: Skill/Concept

In an experiment, a student observes that a charged balloon sticks to a wall. Which of the following best explains this phenomenon?

• The balloon and the wall have the same charge.

• The balloon and the wall have opposite charges.

• The balloon is neutral, and the wall is charged.

• The balloon is charged, and the wall is neutral.

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DOK Level 3: Strategic Thinking

A student is planning an experiment to demonstrate non-contact forces. Which of the following setups would be most appropriate?

• Using a spring scale to measure the weight of an object.

• Observing the attraction between a magnet and a paperclip.

• Measuring the temperature change in a heated object.

• Timing how long it takes for a ball to roll down a ramp.

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DOK Level 3: Strategic Thinking

Which of the following statements correctly describes the force between two electric charges?

• It is always attractive.

• It is always repulsive.

• It can be either attractive or repulsive depending on the charges.

• It does not depend on the type of charges.

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DOK Level 2: Skill/Concept

A student is asked to design an experiment to show that magnetic fields exist between objects. Which of the following would be a suitable method?

• Using a compass to detect the direction of a magnetic field around a magnet.

• Measuring the temperature change of a heated metal rod.

• Observing the color change of a chemical reaction.

• Weighing an object on a balance scale.

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DOK Level 3: Strategic Thinking

Which of the following best describes the relationship between electric field strength and distance from a point charge?

• Electric field strength increases with distance.

• Electric field strength decreases with distance.

• Electric field strength remains constant with distance.

• Electric field strength is not affected by distance.

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DOK Level 2: Skill/Concept

A student observes that a magnet can move a paperclip without touching it. What does this observation demonstrate?

• Contact force.

• Non-contact force.

• Gravitational force.

• Frictional force.

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DOK Level 2: Skill/Concept

Which of the following experiments would best demonstrate the existence of electric fields?

• Using a charged rod to attract small pieces of paper.

• Measuring the mass of an object with a balance.

• Observing the boiling point of water.

• Timing the fall of an object under gravity.

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DOK Level 3: Strategic Thinking