SSC MAHARASHTRA SCI 01

Multiple Choice

Which of the following is a direct application of science and technology in space exploration?

• Launching rockets

• Growing plants

• Building bridges

• Painting art

Open Ended

How do you think advancements in science and technology have impacted our daily lives?

Multiple Choice

Which values are emphasized in the Preamble of the Constitution of India?

• Justice, Liberty, Equality, Fraternity

• Freedom, Wealth, Power, Unity

• Democracy, Monarchy, Aristocracy, Oligarchy

• Science, Technology, Engineering, Mathematics

Open Ended

How does the National Pledge reflect the responsibilities of Indian citizens towards their country and fellow citizens?

Multiple Choice

According to the Preface, what is the main purpose of the Science and Technology textbook for Std X?

• To memorize scientific facts

• To understand and explain science and technology in everyday life

• To prepare for competitive exams

• To conduct laboratory experiments only

Open Ended

List two ways in which the Science and Technology textbook encourages students to apply their knowledge outside the classroom, as mentioned in the Preface and For Teachers sections.

Multiple Choice

Which skills are highlighted as necessary for science education in the 'For Teachers' section?

• Observation, logic, estimation, comparison, application of information

• Memorization, repetition, obedience, silence

• Drawing, painting, singing, dancing

• Speed, strength, agility, endurance

Fill in the Blanks

The relationship between gravitational force and motion is discussed under which competency area in the Science and Technology Part 1 textbook?

Multiple Choice

What is the direction of the centripetal force acting on an object moving in a circular path?

• Away from the center of the circle

• Tangential to the path

• Towards the center of the circle

• Perpendicular to the path

Multiple Select

According to Kepler's laws, which of the following statements are correct?

• The orbit of a planet is a circle with the Sun at the center.

• The line joining the planet and the Sun sweeps equal areas in equal intervals of time.

• The square of the period of revolution of a planet is proportional to the cube of its mean distance from the Sun.

• All planets move at the same speed around the Sun.

Open Ended

Describe the significance of the value of G (universal gravitational constant) and how it is determined experimentally.

Fill in the Blanks

The gravitational force between two objects is inversely proportional to the square of the

between them.

Multiple Choice

Which scientist formulated the laws of planetary motion that helped Newton develop his theory of gravitation?

• Galileo Galilei

• Johannes Kepler

• Isaac Newton

• Henry Cavendish

Open Ended

Explain how Newton's law of universal gravitation relates to the centripetal force acting on planets in their orbits.

Open Ended

Explain how the gravitational force exerted by the moon causes high and low tides on Earth.

Multiple Choice

What is the gravitational force between Mahendra and Virat if their masses are 75 kg and 80 kg respectively and they are sitting 1 metre apart?

• 4.002 x 10^-7 N

• 7.33 x 10^2 N

• 9.8 N

• 1.83 x 10^9 N

Multiple Choice

Calculate the gravitational force due to the earth on Mahendra, given the mass of the earth is 6 x 10^24 kg, radius of the earth is 6.4 x 10^6 m, and Mahendra's mass is 75 kg.

• 733 N

• 4.002 x 10^-7 N

• 9.8 N

• 1.83 x 10^9 N

Multiple Choice

If the value of g on the surface of the earth is 9.8 m/s^2, what will be its value at the height of a typical weather satellite (400 km above the surface)?

• 8.7 m/s^2

• 9.8 m/s^2

• 0.225 m/s^2

• 9.77 m/s^2

Fill in the Blanks

The value of g is the same for all objects at a given place on earth. This was demonstrated by dropping two spheres of different masses from the leaning tower of

.

Open Ended

Will your weight remain constant as you go above the surface of the earth? Explain why or why not.

Open Ended

According to Newton’s law of gravitation, earth’s gravitational force is higher on an object of larger mass. Why doesn’t that object fall down with higher velocity as compared to an object with lower mass?

Multiple Choice

Which of the following statements about gravitational potential energy is correct?

• It increases as the height from the surface of the earth increases.

• It is always positive regardless of the height.

• It becomes zero at infinite distance from the earth.

• It depends only on the mass of the object, not on the height.

Open Ended

The velocity of free fall is the same for all objects in a spacecraft, regardless of their properties. Explain why space travellers appear to be weightless in a spacecraft orbiting the earth.

Multiple Choice

What is the escape velocity on the surface of the moon, given the mass and radius of the moon as 7.34 x 10^22 kg and 1.74 x 10^6 m respectively?

• 1.12 km/s

• 2.37 km/s

• 11.2 km/s

• 9.8 km/s

Fill in the Blanks

Science and

are important subjects for understanding the world around us.

Open Ended

Reflecting on the images and diagrams shown, what is one experiment or concept from science and technology that you found most interesting or would like to learn more about?