science
Grade8
Easy

Question

A sumo wrestler weighs 400 kg. His weight on the Earth is ___N.

hintHint:


wEarth=mEarth×gEarth
wEarth=400 x 9.8 = 3920 N

The correct answer is: 3920

Related Questions to study

Grade8
science

A person weighs 75 kg. His weight on the Earth is ___ N

A person weighs 75 kg. His weight on the Earth is ___ N

scienceGrade8
Grade8
science

The acceleration due to gravity of a freely falling body near the Earth’s surface is ___ m/s2.

The acceleration due to gravity of a freely falling body near the Earth’s surface is ___ m/s2.

scienceGrade8
Grade8
science

Joe wants to check the constancy of the acceleration due to gravity in his garden, for which he collects some objects such as a piece of cloth, an iron ball, an apple and drops them all at a time from the same height (I). He finds that the objects do not land at the same time. However, he then performs the same experiment in an evacuated glass tube (II), where all the objects land at the same time. Which of the above two experiments is the right way of checking the constancy of the acceleration due to gravity. Why?

Joe wants to check the constancy of the acceleration due to gravity in his garden, for which he collects some objects such as a piece of cloth, an iron ball, an apple and drops them all at a time from the same height (I). He finds that the objects do not land at the same time. However, he then performs the same experiment in an evacuated glass tube (II), where all the objects land at the same time. Which of the above two experiments is the right way of checking the constancy of the acceleration due to gravity. Why?

scienceGrade8
parallel
Grade8
science

Which of the following is not true about the weight of a body?

Which of the following is not true about the weight of a body?

scienceGrade8
Grade8
science

The acceleration due to gravity of a planet of mass m and radius r is g m/s2. What would be its acceleration due to gravity if its mass gets tripled and its radius gets doubled?

The acceleration due to gravity of a planet of mass m and radius r is g m/s2. What would be its acceleration due to gravity if its mass gets tripled and its radius gets doubled?

scienceGrade8
Grade8
science

A feather and marble were released from the top of an evacuated long glass tube. Time taken by the feather to hit the bottom is ___ time taken by the marble to hit the bottom of the tube.

A feather and marble were released from the top of an evacuated long glass tube. Time taken by the feather to hit the bottom is ___ time taken by the marble to hit the bottom of the tube.

scienceGrade8
parallel
Grade8
science

The mass of a planet is three times the mass of the Earth, and its radius is two times the radius of the Earth. What will be the acceleration due to gravity of an object falling freely on that planet?

The mass of a planet is three times the mass of the Earth, and its radius is two times the radius of the Earth. What will be the acceleration due to gravity of an object falling freely on that planet?

scienceGrade8
Grade8
science

The mass of an object is 90 kg on the Earth. What is its weight on the Moon?

The mass of an object is 90 kg on the Earth. What is its weight on the Moon?

scienceGrade8
Grade8
science

A rhino weighs 600 kg on the Earth. What is its mass on the Moon?

A rhino weighs 600 kg on the Earth. What is its mass on the Moon?

scienceGrade8
parallel
Grade8
science

A heavier body falls at an acceleration ___ a lighter body.

A heavier body falls at an acceleration ___ a lighter body.

scienceGrade8
Grade8
science

Mass and weight of a body are measured in the SI units of ___ and ___, respectively.

Mass and weight of a body are measured in the SI units of ___ and ___, respectively.

scienceGrade8
Grade8
science

Viyaan wants to check the constancy of the acceleration due to gravity in his garden, for which he collects some objects such as a piece of cloth, an iron ball, an apple and drops them all at a time from the same height. He finds that the objects do not land at the same time. Does it mean that the acceleration due to gravity on the Earth is not constant? Give reasons.

Viyaan wants to check the constancy of the acceleration due to gravity in his garden, for which he collects some objects such as a piece of cloth, an iron ball, an apple and drops them all at a time from the same height. He finds that the objects do not land at the same time. Does it mean that the acceleration due to gravity on the Earth is not constant? Give reasons.

scienceGrade8
parallel
Grade8
science

A piece of paper and marble were dropped from the same height at the same time. The marble took less time than the paper. Which of the following is a reason for this?

A piece of paper and marble were dropped from the same height at the same time. The marble took less time than the paper. Which of the following is a reason for this?

scienceGrade8
Grade8
science

A feather and marble were released from the second floor of a building. The marble hit the ground first and the feather later. The same feather and marble were released from an evacuated long glass tube. This time they hit the bottom of the tube at the same time. Which of the following is the reason for this?

A feather and marble were released from the second floor of a building. The marble hit the ground first and the feather later. The same feather and marble were released from an evacuated long glass tube. This time they hit the bottom of the tube at the same time. Which of the following is the reason for this?

scienceGrade8
Grade8
science

Which of the following does not converge to the constancy of acceleration due to gravity on the Earth?

Which of the following does not converge to the constancy of acceleration due to gravity on the Earth?

scienceGrade8
parallel

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.