The upward force exerted by a liquid on an object immersed in it is known as buoyancy. When you try to immerse an object in water, then you can feel an upward force exerted on the object, which increases as you push the object deeper into water. For more answers visit to website: https://www.tiwariaRead more
The upward force exerted by a liquid on an object immersed in it is known as buoyancy. When you try to immerse an object in water, then you can feel an upward force exerted on the object, which increases as you push the object deeper into water.
It is difficult to hold a school bag having a thin strap because the pressure on the shoulders is quite large. This is because the pressure is inversely proportional to the surface area on which the force acts. The smaller is the surface area; the larger will be the pressure on the surface. In the cRead more
It is difficult to hold a school bag having a thin strap because the pressure on the shoulders is quite large. This is because the pressure is inversely proportional to the surface area on which the force acts. The smaller is the surface area; the larger will be the pressure on the surface. In the case of a thin strap, the contact surface area is very small. Hence, the pressure exerted on the shoulder is very large.
Mass: 1. Mass is the quantity of matter contained in the body. 2. It is the measure of inertia of the body. 3. Mass is a constant quantity. 4. It only has magnitude. 5. Its SI unit is kilogram (kg). Weight: 1. Weight is the force of gravity acting on the body. 2. It is the measure of gravity. 3. WeiRead more
Mass:
1. Mass is the quantity of matter contained in the body.
2. It is the measure of inertia of the body.
3. Mass is a constant quantity.
4. It only has magnitude.
5. Its SI unit is kilogram (kg).
Weight:
1. Weight is the force of gravity acting on the body.
2. It is the measure of gravity.
3. Weight is not a constant quantity. It is different at different places.
4. It has magnitude as well as direction.
5. Its SI unit is the same as the SI unit of force, i.e., Newton (N).
When an object falls towards the ground from a height, then its velocity changes during the fall. This changing velocity produces acceleration in the object. This acceleration is known as acceleration due to gravity (g). Its value is given by 9.8 m/s². For more answers visit to website: https://www.Read more
When an object falls towards the ground from a height, then its velocity changes during the fall. This changing velocity produces acceleration in the object. This acceleration is known as acceleration due to gravity (g). Its value is given by 9.8 m/s².
Gravity of the Earth attracts every object towards its centre. When an object is released from a height, it falls towards the surface of the Earth under the influence of gravitational force. The motion of the object is said to have free fall. For more answers visit to website: https://www.tiwariacadRead more
Gravity of the Earth attracts every object towards its centre. When an object is released from a height, it falls towards the surface of the Earth under the influence of gravitational force. The motion of the object is said to have free fall.
What do you mean by buoyancy?
The upward force exerted by a liquid on an object immersed in it is known as buoyancy. When you try to immerse an object in water, then you can feel an upward force exerted on the object, which increases as you push the object deeper into water. For more answers visit to website: https://www.tiwariaRead more
The upward force exerted by a liquid on an object immersed in it is known as buoyancy. When you try to immerse an object in water, then you can feel an upward force exerted on the object, which increases as you push the object deeper into water.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
Why is it difficult to hold a school bag having a strap made of a thin and strong string?
It is difficult to hold a school bag having a thin strap because the pressure on the shoulders is quite large. This is because the pressure is inversely proportional to the surface area on which the force acts. The smaller is the surface area; the larger will be the pressure on the surface. In the cRead more
It is difficult to hold a school bag having a thin strap because the pressure on the shoulders is quite large. This is because the pressure is inversely proportional to the surface area on which the force acts. The smaller is the surface area; the larger will be the pressure on the surface. In the case of a thin strap, the contact surface area is very small. Hence, the pressure exerted on the shoulder is very large.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
What are the differences between the mass of an object and its weight?
Mass: 1. Mass is the quantity of matter contained in the body. 2. It is the measure of inertia of the body. 3. Mass is a constant quantity. 4. It only has magnitude. 5. Its SI unit is kilogram (kg). Weight: 1. Weight is the force of gravity acting on the body. 2. It is the measure of gravity. 3. WeiRead more
Mass:
1. Mass is the quantity of matter contained in the body.
2. It is the measure of inertia of the body.
3. Mass is a constant quantity.
4. It only has magnitude.
5. Its SI unit is kilogram (kg).
Weight:
1. Weight is the force of gravity acting on the body.
2. It is the measure of gravity.
3. Weight is not a constant quantity. It is different at different places.
4. It has magnitude as well as direction.
5. Its SI unit is the same as the SI unit of force, i.e., Newton (N).
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
What do you mean by acceleration due to gravity?
When an object falls towards the ground from a height, then its velocity changes during the fall. This changing velocity produces acceleration in the object. This acceleration is known as acceleration due to gravity (g). Its value is given by 9.8 m/s². For more answers visit to website: https://www.Read more
When an object falls towards the ground from a height, then its velocity changes during the fall. This changing velocity produces acceleration in the object. This acceleration is known as acceleration due to gravity (g). Its value is given by 9.8 m/s².
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
What do you mean by free fall?
Gravity of the Earth attracts every object towards its centre. When an object is released from a height, it falls towards the surface of the Earth under the influence of gravitational force. The motion of the object is said to have free fall. For more answers visit to website: https://www.tiwariacadRead more
Gravity of the Earth attracts every object towards its centre. When an object is released from a height, it falls towards the surface of the Earth under the influence of gravitational force. The motion of the object is said to have free fall.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/