Physics Chapter 5 Quiz

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Questions and Answers

What defines charged particles?

  • They are the result of electric fields.
  • They only exist within electric motors.
  • They are always negatively charged.
  • They can attract or repel other charged particles. (correct)

What is the primary function of an electric generator?

  • Directly power electrical appliances.
  • Convert mechanical energy into electrical energy. (correct)
  • Convert mechanical energy into thermal energy.
  • Store electrical energy for later use.

Which of the following accurately describes an electric field?

  • A field that only exists in magnetic materials.
  • A field surrounding electric charges where forces act on other charges. (correct)
  • A phenomenon caused solely by moving particles.
  • A force field that does not influence charges present in it.

What does electromotive force refer to?

<p>The voltage that causes an electric current to flow. (B)</p> Signup and view all the answers

What is the main purpose of an electric motor?

<p>To convert electrical energy into mechanical energy. (A)</p> Signup and view all the answers

What is the primary function of a galvanometer?

<p>To measure very small currents (D)</p> Signup and view all the answers

What describes magnetic domains?

<p>Microscopic groupings of atoms with aligned magnetic fields (A)</p> Signup and view all the answers

Which of the following best defines a magnetic field?

<p>The region of magnetic influence around magnetic poles (C)</p> Signup and view all the answers

What do magnetic field lines represent?

<p>The shape of a magnetic field (B)</p> Signup and view all the answers

Which statement is true about the magnetic force?

<p>It attracts unlike poles and repels like poles (B)</p> Signup and view all the answers

Flashcards

Charged Particles

Sources of electric fields that cause attraction or repulsion of other charged particles.

Electric Charge

A fundamental electrical property that causes attraction or repulsion.

Electric Field

A force field around charges where a force acts on other charges.

Electric Generator

Converts mechanical energy to electrical energy.

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Electric Motor

Converts electrical energy to mechanical energy.

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Electricity

Vibrating or flowing charges.

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Electromotive Force

Voltage that causes current.

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Galvanometer

A device measuring small electric currents and their direction.

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Magnet

An object attracting iron or magnetic materials.

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Magnetic Domain

Clusters of aligned atomic magnets.

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Magnetic Field

Region of magnetic influence, effect on moving charges.

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Magnetic Field Lines

Lines showing magnetic field shape - compass aligns.

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Magnetic Force

Attraction/repulsion between magnets, interacts with moving charges.

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Magnetism

Property of attracting/repelling magnetic materials, inherent.

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Transformer

Device to raise or lower electrical potential.

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