Physics Chapter on Friction
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Questions and Answers

What primarily causes friction between two surfaces?

  • The weight of the objects
  • The speed of the objects
  • The temperature of the surfaces
  • The roughness and material of the surfaces (correct)

What is an example of rolling friction?

  • A boat moving through water
  • A ball rolling down a hill (correct)
  • A person walking on sand
  • A car sliding on ice

How does friction affect the motion of an object?

  • It can increase or decrease the object's velocity (correct)
  • It always increases the object's momentum
  • It has no effect on the object's motion
  • It only increases the object's speed

At what coefficient of friction is there virtually no friction?

<p>0.00 (B)</p> Signup and view all the answers

What type of friction do falling objects experience due to air resistance?

<p>Fluid friction (A)</p> Signup and view all the answers

What type of friction involves two surfaces sliding against each other?

<p>Sliding friction (D)</p> Signup and view all the answers

What does the experiment aim to investigate regarding friction?

<p>How friction changes the distance and speed of the car (A)</p> Signup and view all the answers

In the context of the experiment, what simulation tool will likely be used to collect data?

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

What is the expected outcome when the friction value is increased from 0.00 to 0.05?

<p>A decrease in the car's speed (C)</p> Signup and view all the answers

What type of friction occurs when an object moves through air or water?

<p>Fluid friction (D)</p> Signup and view all the answers

Flashcards

Friction

A force that opposes motion between two surfaces in contact. It can be divided into sliding, rolling, and fluid friction.

Velocity

The rate at which an object changes its position over time. It is measured in units like meters per second (m/s).

Sliding friction

The type of friction occurring when two surfaces slide against each other, like rubbing your hands together.

Rolling friction

The type of friction that occurs when one surface rolls over another, like the wheels of a car on the road.

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Fluid friction

The friction experienced by an object moving through a fluid, such as air or water.

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Fluid Friction (Air)

Friction that occurs in the air, caused by the air resisting the movement of an object.

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