Forces Quiz
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Questions and Answers

What force is exerted through a fully stretched object?

  • Electric force
  • Spring force
  • Magnetic force
  • Tension (correct)

What force is the attraction or repulsion between two charged objects?

  • Spring force
  • Magnetic force
  • Electric force (correct)
  • Tension

What force is exerted between two magnetic poles?

  • Spring force
  • Tension
  • Magnetic force (correct)
  • Electric force

What type of diagrams provide a visual representation of an object and the forces acting on it?

<p>Free-body diagrams (B)</p> Signup and view all the answers

In a free-body diagram, what does the size of the arrow represent?

<p>The relative magnitude of the force (C)</p> Signup and view all the answers

What force opposes the gravitational force when an object is resting on a surface?

<p>Normal force (C)</p> Signup and view all the answers

What force is present when an object is moving across a surface?

<p>Friction (C)</p> Signup and view all the answers

What force acts on an object as it encounters air resistance while falling?

<p>Air resistance (C)</p> Signup and view all the answers

Which force is always equal in magnitude and opposite in direction to gravity?

<p>Normal force (B)</p> Signup and view all the answers

What is the force that occurs when two objects rub against each other, restricting or preventing motion?

<p>Friction (B)</p> Signup and view all the answers

Which force is responsible for pulling objects down to Earth?

<p>Gravity (B)</p> Signup and view all the answers

What is the force applied to one object from another, like pushing on a piece of furniture to move it across the floor?

<p>Applied force (B)</p> Signup and view all the answers

Which force acts on an object in the air, like when a feather slowly floats to the ground instead of dropping quickly?

<p>Air resistance (B)</p> Signup and view all the answers

What is the force that balances the weight of an object on a surface?

<p>Normal force (A)</p> Signup and view all the answers

What is an object's weight caused by?

<p>Gravity (B)</p> Signup and view all the answers

Flashcards

Tension

The force exerted through a fully stretched object, pulling it taut.

Electric force

The force of attraction or repulsion between two charged objects.

Magnetic force

The force exerted between two magnetic poles, either attracting or repelling them.

Free-body diagram

Diagrams that visually represent an object and all the forces acting upon it.

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Force magnitude

In a free-body diagram, the length of the arrow represents the strength of the force.

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Normal force

The force that opposes the gravitational force when an object is resting on a surface.

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Friction

The force that resists motion between two surfaces in contact.

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Air resistance

The force that opposes an object's motion through the air.

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Normal force

The force that always balances the weight of an object on a surface, acting in the opposite direction.

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Friction

The force that occurs when two surfaces rub against each other, preventing or restricting motion.

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Gravity

The force that pulls objects towards the center of the Earth, giving objects weight.

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Applied force

The force applied to an object by another object, like pushing a box across the floor.

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Air resistance

The force that acts on an object in the air, causing it to slow down or fall slowly.

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Normal force

The force that balances the weight of an object resting on a surface, acting perpendicular to it.

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Weight

An object's weight is directly caused by the force of gravity acting upon it.

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