Science Fill In The Blanks.

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Friction prevents our foot from ____________________ over the ground.

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Friction always opposes ____________________ between the surfaces in contact with each other.

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Sliding friction is ____________________ than the static friction.

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Objects which can move quickly through the water have a ____________________ shape.

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Friction produces ____________________.

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Ball bearings reduce friction because they ____________________ rather than 'slide.

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Shapes that are designed to reduce air resistance are called ____________________ shapes.

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The shape of an aeroplane is similar to that of a ____________________ in flight.

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The friction when something moves through a liquid or gas is called ____________________.

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Sprinkling of powder on the carom board ____________________ friction.

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Cars and speedboats are ____________________ to reduce drag.