NCERT Class 9 Questions

Subjects

NCERT Class 9 questions with explanations

A cross-section of the NCERT Class 9 bank, spread across subjects and chapters. Open any one for the full explanation.

• What is the minimum magnitude of force required to lift an object of mass m vertically upwards at a constant…
• With reference to 'Colloidal Solutions', consider the following statements: 1. They appear homogeneous but…
• Which one of the following forces is responsible for keeping an object moving in a circular path?
• In the context of insect pests attacking plants, which of the following modes of attack are observed? 1.…
• The magnitude of impact produced by a moving object upon collision primarily depends on:
• Consider the following statements regarding Power: 1. Power is a scalar quantity. 2. The power of a machine…
• Which one of the following is NOT a characteristic property of a colloidal solution?
• Consider the following statements about the density of a substance: 1. It is defined as mass per unit volume.…
• Consider the following statements regarding 'Sustainable Agriculture': 1. It involves increasing food…
• When a constant unbalanced force is applied to a body of fixed mass, the body moves with:
• What does the term 'Power' refer to in physics?
• Consider the following statements regarding the gas evolved when dilute hydrochloric acid reacts with Iron…
• Which of the following everyday phenomena can be explained by the concept of pressure? 1. School bags having…
• Which of the following is a micronutrient for plants?
• The recoil of a gun after firing a bullet is best explained by:
• Two individuals of equal weight climb to the same height, but one takes less time than the other. Which of…
• With reference to physical changes, consider the following statements: 1. Interconversion of states of matter…
• If a stone and a piece of paper are dropped simultaneously in a vacuum chamber, which of the following will…
• In plant breeding, 'Biotic Resistance' refers to the ability of a crop to withstand:
• With reference to the First and Second Laws of Motion, consider the following statements: 1. The First Law of…
• Which one of the following pairs of devices and energy transformations is NOT correctly matched?
• When dilute sulphuric acid is added to a physical mixture of iron filings and sulphur powder, which gas is…
• Consider the following statements about 'Thrust': 1. Thrust is a force acting perpendicular to a surface. 2.…
• In the context of plant breeding, what does 'Interspecific Hybridisation' refer to?
• Consider the following everyday experiences: 1. Dust coming out of a carpet when beaten with a stick. 2.…
• When an object is lifted vertically upwards, the work done by the gravitational force is:
• Which one of the following characteristics distinguishes a suspension from a true solution?
• The weight of an object is defined as:
• With reference to the storage of grains, consider the following statements: 1. Biotic factors causing loss…
• With reference to Newton's Third Law, action and reaction forces act: