Science- Gravitation Online Practice Exams

Science- Gravitation

Free Mock Test

Questions 15
Maximum mark 15

Introduction to Gravitation

Prepare for the Science - Gravitation chapter in your 9th class exams with MyTAT. Gain a fundamental understanding of gravitation, its significance, and how it influences the motion of objects in the universe.

Newton's Law of Gravitation

Learn about Sir Isaac Newton's law of gravitation, which describes the force of attraction between two masses. Understand the concept of gravitational force and its mathematical representation.

Gravity and Weight

Explore the relationship between gravity and weight. Learn how the force of gravity affects the weight of an object on different celestial bodies, such as the Earth, Moon, and other planets.

Free Fall and Acceleration Due to Gravity

Study the concept of free fall and how objects accelerate towards the Earth under the influence of gravity. Understand the acceleration due to gravity and its significance in various scenarios.

Motion of Planets and Satellites

Understand how gravitation governs the motion of planets and satellites in our solar system. Explore the orbits of planets around the Sun and the motion of artificial satellites around the Earth.

Kepler's Laws of Planetary Motion

Learn about Johannes Kepler's laws of planetary motion, which describe the motion of planets in their elliptical orbits around the Sun. Understand how these laws revolutionized our understanding of celestial bodies.

Gravitation and Universal Law of Gravitation

Explore the concept of universal gravitation and how it extends to all objects in the universe. Study the universal law of gravitation and its implications on celestial bodies.

Interactive Sessions with Experts

Connect with experienced Science tutors on MyTAT to participate in interactive sessions. Seek clarifications, discuss important topics, and receive personalized guidance to excel in your 9th class exams.

Visual Aids and Diagrams

Enhance your understanding of gravitation with the help of visual aids and diagrams. These illustrations provide valuable insights and make complex concepts easier to grasp.

Prepare Anytime, Anywhere

With MyTAT, you can study Science - Gravitation for your 9th class exams at your convenience. Access online study materials and interactive sessions anytime, allowing you to study at your own pace and from anywhere.

Prepare with Confidence

Prepare effectively with expertly crafted study materials and interactive sessions on Gravitation. Our comprehensive resources will help you gain a deep understanding of the laws of gravitation and its impact on celestial bodies.

Achieve Excellence in your 9th Class Exams

Visit to access our comprehensive resources for the Gravitation chapter. Prepare confidently with our study materials, interactive sessions, and expert guidance to excel in your 9th class exams. With MyTAT, you can achieve excellence and score high marks in your exams.

Science- Gravitation Online Practice Exams FAQs

1. What is gravitation?

Gravitation is the natural phenomenon by which all objects with mass or energy are brought toward one another. It is a force of attraction that exists between any two objects, regardless of their size or distance. Gravitation is responsible for keeping the planets in their orbits around the Sun, causing objects to fall towards the Earth, and governing the motion of celestial bodies in the universe. It is described by Isaac Newton's law of universal gravitation and plays a fundamental role in understanding the behavior of objects in the universe.

2. What is the law of universal gravitation?

The law of universal gravitation, formulated by Isaac Newton, states that every particle of matter in the universe attracts every other particle with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. Mathematically, it can be expressed as:

F = G * (m1 * m2) / r^2

Where F is the gravitational force between two objects, G is the gravitational constant, m1 and m2 are the masses of the two objects, and r is the distance between their centers of mass. This law explains why objects fall towards the Earth, why planets orbit the Sun, and how celestial bodies exert gravitational forces on each other throughout the universe.

3. What is the difference between mass and weight?

Mass and weight are two related but distinct concepts:

Mass: Mass is a measure of the amount of matter in an object. It is a fundamental property and remains the same regardless of the object's location. Mass is measured in kilograms (kg) and can be thought of as a measure of inertia, determining how difficult it is to change an object's motion.
Weight: Weight, on the other hand, is a measure of the force of gravity acting on an object. It depends on the object's mass and the gravitational field strength. Weight is measured in newtons (N) and varies with the strength of gravity. Weight can change based on the location of the object—for example, an object will weigh less on the Moon than on Earth due to the difference in gravitational pull.

In summary, mass is a measure of the amount of matter, while weight is a measure of the force of gravity acting on an object. Weight can vary depending on the gravitational field, whereas mass remains constant.

4. What factors affect the strength of the gravitational force?

The strength of the gravitational force between two objects depends on several factors, including:

Mass: The greater the mass of the objects, the stronger the gravitational force between them.
Distance: The closer the objects are to each other, the stronger the gravitational force. The force of gravity decreases with the square of the distance between the objects.
Gravitational Field Strength: The gravitational force also depends on the strength of the gravitational field in which the objects are located. Different celestial bodies have different gravitational field strengths.

These factors determine the magnitude of the gravitational force between objects and play a significant role in shaping the motion of celestial bodies, including planets, moons, and satellites.

5. What are the applications of gravitation in everyday life?

Gravitation has several applications in everyday life, including:

Weight and Mass Measurement: Gravitation allows us to measure weight using weighing scales, which rely on the gravitational force acting on an object.
Planetary Motion: Gravitation explains the motion of planets, moons, and satellites in their orbits around celestial bodies.
Artificial Satellites: Gravitation is essential for launching and maintaining artificial satellites in orbit around the Earth, enabling various communication, navigation, and scientific applications.
Tides: Gravitation is responsible for causing ocean tides, resulting from the gravitational attraction between the Earth, Moon, and Sun.
Free Fall and Projectile Motion: Gravitation governs the motion of objects in free fall and projectile motion, such as objects thrown in the air or falling from a height.

Gravitation plays a significant role in numerous natural and technological phenomena, contributing to our understanding of the universe and enabling practical applications in various fields.