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Friction grade 5
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disadvantages of friction force
done
friction force is important for ............................
done
G.R bat stretches its wings on landing
done
G.R a fish has a streamline shape
done
the friction force between water and moving object through it is called ......................
water resistance
Air resistance acts in ...................... to the movement direction
opposite
when a body moves through water, it is affected by .................
water resistance
birds and bats have ...................... to decrease air resistance
wide wings
by increasing the speed of the car , air resistance .....................
increases
air resistance acts in ................. to the movement direction
opposite
friction force increases between ............... surfaces and .............. between smooth surfaces
rough - decrease
it is the friction force between water and moving objects
water resistance
the friction force between air and moving objects
air resistance
A force enables us to control the car speed and to change its direction
friction force
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