Multiple Choice Questions

Ten > Pressure

Asked by Atith Adhikari · 1 year ago

Which one of the following statements is correct for a hand pushing a ball into the water as shown in the given figure?

A equal pressure acts on all parts of the ball under water

B the more the ball is pushed into the water, the lesser the upthrust it experiences

C the pressure on the ball acts only in the upward direction

D the upthrust on the ball increases until it completely sinks into the water

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Ten > Pressure

Asked by Atith Adhikari · 1 year ago

When a ship enters a river from a sea, it was found to sink more than before. What is the reason for this?

A the temperature of seawater is more than that of river water

B the density of seawater is more than that of river water

C the temperature of seawater is less than that of river water

D the density of seawater is less than that of river water

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Ten > Pressure

Asked by Atith Adhikari · 1 year ago

When an object is suspended using spring balance in air, water, and glycerin, the weight is found to be W1, W2, and W3 respectively. What will be the weight of the object in those mediums in increasing order?

A W1 < W2 < W3

B W2 < W1 < W3

C W3 < W2 < W1

D W3 < W1 < W2

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Ten > Pressure

Asked by Atith Adhikari · 1 year ago

In a hydraulic machine, if the cross-sectional area of the larger piston is twice the area of the samller piston, what is the correct group of the weights on the smaller piston (W1) and the larger piston (W2) to keep the machine balanced?

A W1 = 4N, W2 = 2N

B W1 = 5N, W2 = 10N

C W1 = 2N, W2 = 1N

D W1 = 3N, W2 = 1.5N

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Ten > Pressure

Asked by Atith Adhikari · 1 year ago

What is the condition for flying a hydrogen balloon upwards in the air?

A weight of the balloon = weight of air displaced

B weight of balloon > weight of air displaced

C weight of the balloon = volume of air displaced

D weight of baloon < weight of air displaced

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Ten > Pressure

Asked by Atith Adhikari · 1 year ago

On which law/principle is a lactometer based?

A Pascal's law

B Archimedes' principle

C Law of Gravitation

D Newton's law

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Ten > Scientific Learning

Asked by Atith Adhikari · 1 year ago

What type of unit is watt?

A fundamental unit

B local unit

C derived unit

D SI unit

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Ten > Scientific Learning

Asked by Atith Adhikari · 1 year ago

If we water the plant every day, to grow its height, what is the dependent variable?

A amount of water

B quantity of soil

C height of plant

D size of the water pot

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Ten > Scientific Learning

Asked by Atith Adhikari · 1 year ago

Identify the unit analysis for v^2 = u^2 + 2as.

A $\rm ms^{-2} = m^2s^{-2} + m^2s^{-2}$

B $\rm m^2s = m^2s^{-2} + m^2s^{-2}$

C $\rm m^2s^{-2} = m^2s^{-2} + m^2s$

D $\rm m^2s^{-2} = m^2s^{-2} + m^2s^{-2}$

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Ten > Scientific Learning

Asked by Atith Adhikari · 1 year ago

Based on units, v^2 = u^2 + 2as is called?

A homogeneous equation

B non-homogeneous equation

C analogous equation

D variable equation

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