It is a basic unit.It is invariable;it doesn't change with the place in the Universe where the body is found.Its unit in the SI is the kg.It's measured using sc
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Rigid
They aren't deformed when a force is applied.
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Characteristics of weight:
It's a derived unit.It's variable;it depends on the gravity in the place where it is measured.Its unit in the SI is the newton.It's measured using a dynamometer
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The unit of FORCE in the International System of Units is...
the newton (N)
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Push
The force that moves something away from you.
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banana
Go to last place!
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seesaw
Swap points!
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rocket
Go to first place!
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banana
Go to last place!
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boom
Lose 50 points!
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magnet
Take 10 points!
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fairy
Take points!
5
10
15
20
25
banana
Go to last place!
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What are contact forces?Examples
They are interactions between objects that touch:applied force,spring force,drag force,frictional force,normal force.
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What is force?
FORCE is a push or pull in a particular direction.FORCE is a vectorial magnitude and is represented by a vector.
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What is normal force?
Normal force si the force that a surface exerts on bodies that are placed on top of it.
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What is the weight?
It's the force with which a planet attracts bodies.The direction is always vertical and its sense is downwards, toward the center of the planet.
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What are non-contact forces?Examples.
They attract or repel,even from a distance:magnetic force,electric force and gravitational force.
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What is the tension?
Tension is the force exerted by a cable or rope when a body hangs from it or pulls on it.
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baam
Lose 15 points!
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star
Double points!
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shark
Other team loses 20 points!
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lifesaver
Give 25 points!
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What is mass?
Mass is the amount of matter in a body.It is a property of the body and it stays the same wherever it is.
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Effects of forces
Start the motion,change velocity,stop the motion,change direction,change chape.