Choose that correct alternative andrewrite and Statements :
Question -: The moon and the artificial Satellites are moving only under the influence of the ……………………. of the earth.
✹ Escape velocity
✹ Acceleration
✹ Gravitational field
✹ Centripetal
Question -: In …………………. Method a less reactive metal is coated on a morel reactive metal by electrolysis .
✹ Alloying
✹ Electroplating
✹ Annotation
✹ f – block
Question -: To prevent rusting a layer of ………………. metal is applied on Iron sheets .
✹ Copper
✹ aluminium
✹ Iron ore
✹ zinc
Question -: We can see the sun s even when it it is little below the horizon because of
✹ Reflection of light
✹ Refraction of light
✹ Dispersion of life
✹ Absorption of light
Question -: The temperature of ice can be below 0.C by mixing ……………… in it .
✹ Saw dust
✹ Sand
✹ salt
✹ Coal
Question -: Solve the following questions :
In which block of the modern periodic table are the nonmetals found ?
Write a chemical equation for the following event .
Zinc oxide is dissolved in dilute hydrochloric acid.
Name the electronic configuration and atomic number of aluminium
Write structural formula of methanol .
Name the oxide that forms salt and water by reacting with both acid and base .
Question -: Give scientific reasons :
It is recommended to use air tight container for storing oil for a long time.
The value of g is zero at the centre of the earth .
Geostationary satellites not useful for studies of polar regions .
Question -: Solve the following question :
Write short notes on mendeleev’s periodic law .
What is a catalyst ? Write any one reaction which is brought about by use of catalyst ?
The absolute refractive index of water is 1.36 what is the velocity of light in water ?
(velocity of light in vacuum 3 x 10m/s)
Explain the role of latent heat in the change of state of a substances?
Explain the term metallurgy.
Question -: Solve the following question :
Write the three laws given by kepler . How did they help Newton to arrive at the inverse square law of gravity?
An element has its electron configuration as 2,8,8,2. Now answer the following question .
What is the atomic number of this element ?
What is the group of this element?
.To which period does this element belong ?
Name the following diagram and explain the concept behind them .
Prove If the angle of incidence and angle of emergence of a light ray falling on a glass slad are i and respectively prove that . 1=e .
Question -: Read the following paragraph and answer the question .
If heat is exchanged between a hot and cold object. The temperature of cold object gose on increasing due to gaing of energy and the temperature of hot object goes on decreasing due to loss of energy.
The change in temperature continues til the temperatures of both the objects attain the same value .In this process , the cold object gains heat energy and the hot object loses heat energy . If the system of both the objects is isolated from the environment by keeping it inside a heat resistant box (meaning that the energy exchange takes place between the objects only ) then no energy can flow from inside or came into the box .
Question -: Heat is transferred from where to where ?
Which principle do we learn about from this process?
Which property of the substance is measured using this principle ?
Write the IUPAC names of the following structural formulae.
CH3 – CH2 – CH2 – CH3
CH3 – CH2 – COOH
CH3 – CO – CH2 -CH3
What is meant by space debris ? Why there is need to manage the debris.
Question -: Solve any one of the following question:
Study the following principle and answer the question .
A force is excreted on the current conductor . The direction of this force depends on both direction of the current and the direction of the magnetic field.
By which law we can determine the direction of force current carrying conductor .
Draw a diagram representing construction of this equipment .
Write the working of this equipment in brief .
Observe the following figure and answer the question :
Question -: Which type of microscope has arrangement of lenses shown in the adjoining figure?
Label the figure correctly.
Write the working of this microscope.
Where does this microscope used ?
Suggest a way to increase the efficiency of microscopes .
Question -: The moon and the artificial Satellites are moving only under the influence of the ……………………. of the earth.
✹ Escape velocity
✹ Acceleration
✹ Gravitational field
✹ Centripetal
Question -: In …………………. Method a less reactive metal is coated on a morel reactive metal by electrolysis .
✹ Alloying
✹ Electroplating
✹ Annotation
✹ f – block
Question -: To prevent rusting a layer of ………………. metal is applied on Iron sheets .
✹ Copper
✹ aluminium
✹ Iron ore
✹ zinc
Question -: We can see the sun s even when it it is little below the horizon because of
✹ Reflection of light
✹ Refraction of light
✹ Dispersion of life
✹ Absorption of light
Question -: The temperature of ice can be below 0.C by mixing ……………… in it .
✹ Saw dust
✹ Sand
✹ salt
✹ Coal
10th Question Paper Maharashtra Board Exam 2024 | Science Sample Paper
Question -: Solve the following questions :
In which block of the modern periodic table are the nonmetals found ?
Write a chemical equation for the following event .
Zinc oxide is dissolved in dilute hydrochloric acid.
Name the electronic configuration and atomic number of aluminium
Write structural formula of methanol .
Name the oxide that forms salt and water by reacting with both acid and base .
Question -: Give scientific reasons :
It is recommended to use air tight container for storing oil for a long time.
The value of g is zero at the centre of the earth .
Geostationary satellites not useful for studies of polar regions .
Question -: Solve the following question :
Write short notes on mendeleev’s periodic law .
What is a catalyst ? Write any one reaction which is brought about by use of catalyst ?
The absolute refractive index of water is 1.36 what is the velocity of light in water ?
(velocity of light in vacuum 3 x 10m/s)
Explain the role of latent heat in the change of state of a substances?
Explain the term metallurgy.
Question -: Solve the following question :
Write the three laws given by kepler . How did they help Newton to arrive at the inverse square law of gravity?
An element has its electron configuration as 2,8,8,2. Now answer the following question .
What is the atomic number of this element ?
What is the group of this element?
.To which period does this element belong ?
Name the following diagram and explain the concept behind them .
Prove If the angle of incidence and angle of emergence of a light ray falling on a glass slad are i and respectively prove that . 1=e .
Question -: Read the following paragraph and answer the question .
If heat is exchanged between a hot and cold object. The temperature of cold object gose on increasing due to gaing of energy and the temperature of hot object goes on decreasing due to loss of energy.
The change in temperature continues til the temperatures of both the objects attain the same value .In this process , the cold object gains heat energy and the hot object loses heat energy . If the system of both the objects is isolated from the environment by keeping it inside a heat resistant box (meaning that the energy exchange takes place between the objects only ) then no energy can flow from inside or came into the box .
Question -: Heat is transferred from where to where ?
Which principle do we learn about from this process?
Which property of the substance is measured using this principle ?
Write the IUPAC names of the following structural formulae.
CH3 – CH2 – CH2 – CH3
CH3 – CH2 – COOH
CH3 – CO – CH2 -CH3
What is meant by space debris ? Why there is need to manage the debris.
Question -: Solve any one of the following question:
Study the following principle and answer the question .
A force is excreted on the current conductor . The direction of this force depends on both direction of the current and the direction of the magnetic field.
By which law we can determine the direction of force current carrying conductor .
Draw a diagram representing construction of this equipment .
Write the working of this equipment in brief .
Observe the following figure and answer the question :
Question -: Which type of microscope has arrangement of lenses shown in the adjoining figure?
Label the figure correctly.
Write the working of this microscope.
Where does this microscope used ?
Suggest a way to increase the efficiency of microscopes .