Types of Forces
Presentation
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Science
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7th Grade
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Practice Problem
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Hard
+1
Standards-aligned
Nipuni Marasinghe
Used 73+ times
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16 Slides • 9 Questions
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Going ahead!!
by: Nipuni Marasinghe
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CONTACT and NON CONTACT FORCES!!
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Weight or Gravitational Force
+ Weight is a force that acts downwards
+ It is a non contact force
+ Weight is a force caused due to the gravitational field strength
+ Weight can also change with the mass of the object
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Weight depends on the mass.
When the mass increases, weight also increases.
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Weight increases with the strength of the gravitational force
The gravity of some places is greater than of another.
Earth's gravitational field strength is greater than the moon, thus you would weigh less in the moon than on Earth.
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The point at which weight acts!!
Activity on ruler shift.
Activity on center of mass in irregular object
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Multiple Select
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Multiple Choice
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Multiple Choice
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FRICTIONAL FORCE
This is a contact force
Caused due to rubbing of two surface
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Multiple Select
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Is Friction a nuisance??
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or is it important??
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Multiple Select
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Upthrust force in water
A force that opposes weight of an object in water
Enables the object to float if both weight and upthrust are equal
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Multiple Select
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Multiple Choice
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Multiple Select
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Multiple Select
Going ahead!!
by: Nipuni Marasinghe
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