SSC (Marathi Semi-English) १० वीं कक्षा - Maharashtra State Board Important Questions for Science and Technology 1

Draw the diagram of refraction of light in the glass slab

We can see the sun even when it is little below the horizon because of ______.

Explain the role of citizen in pollution control.

What will be the weight of a person on earth, who weighs 9N on the moon?

A ball falls off a table and reaches the ground in 1 s. Assuming g=10 m/s^2, calculate its speed on reaching the ground and the height of the table.

i) If g = GM/r² then where will the value of g be high at Goa Beach or on top of Mount Everest? 

Identify the law shown in the figure and state three respective laws.

For freely falling object we can write the Newton’s second equation of motion as …..

A metal ball of mass 5 kg falls from a height of 490 m. How much time it will take to reach the ground? (g = 9.8 m/s²)

What would be the value of ‘g’ on the surface of the earth if its mass was twice and its radius half of what it is now?

The value of universal gravitational constant (G) in the SI unit is ______.

Write a short note.

Escape Velocity

Write the Kepler's laws.

Give scientific reasons for the following:

Newton's gravitational law is the universal law of gravitation.

Calculate the escape velocity on the surface of the moon given the mass and radius of the moon to be 7.34 × 10²² kg and 1.74 × 10⁶ m respectively.

(Given: G = 6.67 × 10^-11 Nm²/kg²)

When is free fall possible?

Observe the figure and answer the questions:

1. State Newton's universal law of gravitation.
2. If the distance between the two bodies is tripled, how will the gravitational force between them change?
3. What will happen to gravitational force, if mass of one of the object is doubled?

Fill in the blank:

The modern periodic table consists of ……………. periods.

Fill in the blank:

The formulae of chloride of metal M is MCl2. The metal M belongs to ……………. group.

The element eka-silicon in Mendeleev’s periodic table is known as ………… in the modern periodic table.