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ASSERTION&REASON: Mark the correct choic...

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

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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 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 : Two persons on the surface of moon cannot talk to each other. Reason : There is no atmosphere on moon.

Assertion and Reason. Mark the correct choice as : Assertion: The pressure at the bottom of the sea is lesser then that near the surface. Reason: The pressure exerted by a liquid depends upon the depth of the liquid and density of the liquid .

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.

Water strider insect slides on the wather surface easily due to the ______ of water.

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: There is danger of a vehicle skidding on a wet road. Reason:The tyres of the vehicle lose their grip on the road due to increase in friction due to presrnce of water on the road..

SURA PUBLICATION-Force and Pressure-Example
  1. ASSERTION&REASON: Mark the correct choice as: Assertion: Sharp knives ...

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

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

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

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

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

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

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

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  9. Define one atmosphere.

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  10. Why are heavy bags provided with broad straps?

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  11. How does surface help a plant?

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

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

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  14. Write down three ways of minimising friction.

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

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

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

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

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

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  20. Explain how friction can be minimised.

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