Introduction to Force and Types of Forces

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Questions and Answers

What is force?

  • Something that changes color of objects
  • A pull on an object
  • A push on an object (correct)
  • Something that slows down objects

Which force keeps us on the ground and gives objects weight?

  • Normal force
  • Gravity (correct)
  • Friction
  • Magnetic force

What type of force opposes motion when two surfaces rub against each other?

  • Magnetic force
  • Applied force
  • Gravity
  • Friction (correct)

Which force is responsible for attracting or repelling objects made of certain materials like iron or steel?

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

When we push or pull different objects to move them, what type of force are we applying?

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

What effect does gravity have on the motion of objects when they are dropped or thrown?

<p>Speeds them up (B)</p> Signup and view all the answers

Which type of force could you demonstrate by rubbing your hands together or pushing objects across different surfaces?

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

Which type of force is generated when sandpaper is rubbed over paper?

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

What is the main characteristic of static friction?

<p>It only acts when there is movement involved (A)</p> Signup and view all the answers

When does dynamic friction occur?

<p>When solid surfaces rub against each other (A)</p> Signup and view all the answers

Which type of force plays a role in keeping objects on the ground and giving them weight?

<p>Gravitational force (D)</p> Signup and view all the answers

What is the definition of Contact Force?

<p>Force that causes objects to push against each other or pull apart (C)</p> Signup and view all the answers

What characteristic makes gravity different from other forces?

<p>It increases linearly with separation (B)</p> Signup and view all the answers

Which of the following is NOT a type of contact force mentioned in the text?

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

What property of friction distinguishes static friction from kinetic friction?

<p>Static friction is greater than kinetic friction (A)</p> Signup and view all the answers

Which force type is described as not allowing anything to slide smoothly along its pathway?

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

What property of gravitational forces sets them apart from other forces?

<p>They depend only on the distance between two masses (D)</p> Signup and view all the answers

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