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ASSERTION&REASON: Mark the correct choic...

ASSERTION&REASON: Mark the correct choice as: Assertion: Broad straps are used in bags.Reason: Broad straps last for long life.

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ASSERTION&REASON: Mark the correct choice as: Assertion: Sharp knives are used to cut the vegetables.Reason: Sharp edges exert more presure.

ASSERTION&REASON: Mark the correct choice as: Assertion : Water strider slides easily on the surface of water.Reason: Water strider experiences less buoyant force.

Assertion and Reason. Mark the correct choice as: Assertion: Temperature is a physical quantity. Reason: Thermometers is the gegree of hotness or coldness of a body.

Assertion & Reason: direction Mark the correct choice as Assertion: Radian is the unit of solid angle. Reason: One radian is the angle subtended at the center of a circel by an are of length equal to its radius.

Assertion and Reason. Mark the correct choice as:Assertion:Temperature is the measure of the heat energy.Reason:Energy is the capacity to do work.

Assertion & Reason : Direction : Mark the correct choice as : Assertion : It is safer under a tall tree during lightning . Reason : It will make you fore lightning .

Assertion and Reason. Mark the correct choice as : Assertion: Friction always opposes the motion. Reason: Whenever one surface moves or tries to moves over another surface, the force of friction starts acting on the surfaces .

Assertion and Reason. Mark the correct choice as: Assertion: The SI unit of temperature is kelvin. Reason: Thermometers are calibrated with some standard scales like celsius, fahrenheit and kelvin.

Assertion and Reason. Mark the correct choice as:Assertion: Convex mirror are used as rear view mirror in vehicles for observing traffic at our back.Reason: A convex mirror has a much larger field of view.

Assertion and Reason. Mark the correct choice as : Assertion: Force is defined as a push as a push or pull acting on a body. Reason: CGS unit of foree is newton.

SURA PUBLICATION-Force and Pressure-Example
  1. In a hydraulic life, the surface area of the input piston is 10cm^. Th...

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  2. ASSERTION&REASON: Mark the correct choice as: Assertion: Sharp knives ...

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  3. ASSERTION&REASON: Mark the correct choice as: Assertion: Broad straps ...

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  4. ASSERTION&REASON: Mark the correct choice as: Assertion : Water stride...

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  5. Give two example to verify that a force tends to change the shape of a...

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  6. Give two example to verify that a force tends to change the static con...

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  7. What do you feel when you thouch a nail immediately after it is hammer...

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  8. How does the friction arise between the surfaces of two bodies in rela...

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  9. Name two instrument, which help to measure the pressure of a Huid.

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  10. Define one atmosphere.

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  11. Why are heavy bags provided with broad straps?

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  12. How does surface help a plant?

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  13. Which has greater viscosity,oil or honey? Why?

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  14. Define friction.Give two exemples of the utility of friction In day to...

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  15. Write down three ways of minimising friction.

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  16. Why is a ball bearing used in a cycle hub?

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  17. Write down three applications of Pascal's law.

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  18. "Friction is a necessary evil"-explain.

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  19. Give the different types of friction and explain each with an example.

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  20. Describe an experiment to prove that friction depends on the nature of...

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