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Electric Force and Conductors vs. Insulators Quiz

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Electric Force and Conductors vs. Insulators Quiz

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Questions and Answers

What is the fundamental property of matter related to the presence of excess protons or electrons?

Magnetic field

Magnetic charge

Electric charge (correct)

Electric field

According to the Law of Charges, how do like charges interact with each other?

Repel (correct)

Stay neutral

Attract

Alternate attraction and repulsion

What do electric field lines represent around a charged object?

Field strength and direction (correct)

Charge magnitude only

Magnetic properties

Distance between objects

Which statement best describes the density of electric field lines with respect to the strength of the electric field?

Denser lines indicate a stronger field (B) Signup and view all the answers

What is static electricity primarily attributed to?

Friction or contact with charged objects (A) Signup and view all the answers

Which material is most likely to allow electric charge to remain stationary on its surface unless discharged through a conductive path?

Insulator (A) Signup and view all the answers

What does Coulomb's Law state?

The electric force is directly proportional to the square of the charges of the objects. (B) Signup and view all the answers

What kind of materials are conductors?

Materials that allow electric charge to flow easily through them. (A) Signup and view all the answers

How can insulators be charged by induction?

Bringing a charged object close without touching. (A) Signup and view all the answers

What is the definition of electric current?

The rate at which charge flows past a point in a circuit. (B) Signup and view all the answers

In which type of circuit do components connect end-to-end?

Series circuits (A) Signup and view all the answers

What happens to the electric force between two charged objects if the distance between them is doubled?

The force decreases by a factor of 4. (B) Signup and view all the answers

What is the main function of transformers in the distribution of electricity?

Step up voltage for long-distance transmission (A) Signup and view all the answers

What is the main difference between AC and DC currents?

DC currents flow in one direction continuously (B) Signup and view all the answers

What type of materials can be attracted to a magnet and magnetized?

Magnetic materials (B) Signup and view all the answers

Where do magnetic field lines flow from and towards inside a magnet?

From north to south outside the magnet, and from south to north inside the magnet (B) Signup and view all the answers

Which type of current is commonly used for long-distance transmission and why?

AC current, due to its continuous flow in one direction (A) Signup and view all the answers

What property distinguishes magnetic from non-magnetic materials?

Ability to be attracted to magnets and magnetization (B) Signup and view all the answers