science
Grade8
Easy

Question

Which of the following does the universal law of gravitation not explain?

  1. The motion of planets around a star
  2. Attraction and repulsion between magnets
  3. Everything on the Earth put together
  4. High and low tides

hintHint:

Attraction and repulsion between magnets does the universal law of gravitation not explain.

The correct answer is: Attraction and repulsion between magnets

Related Questions to study

Grade8
science

The universal law of gravitation applies to ____.

The universal law of gravitation applies to ____.

scienceGrade8
Grade8
science

If there is a gravitational force of attraction between any two bodies, why do the bodies not stick together?

If there is a gravitational force of attraction between any two bodies, why do the bodies not stick together?

scienceGrade8
Grade8
science

When an object falls towards the Earth, its acceleration towards the Earth is ____ the acceleration of the Earth towards the object.

When an object falls towards the Earth, its acceleration towards the Earth is ____ the acceleration of the Earth towards the object.

scienceGrade8
parallel
Grade8
science

For a particular force, the acceleration of a body ___ the mass.

For a particular force, the acceleration of a body ___ the mass.

scienceGrade8
Grade8
science

According to the universal law of gravitation, the gravitational force between two bodies is ___.

According to the universal law of gravitation, the gravitational force between two bodies is ___.

scienceGrade8
Grade8
science

The force of attraction between two chairs placed nearby is ____ in nature.

The force of attraction between two chairs placed nearby is ____ in nature.

scienceGrade8
parallel
Grade8
science

Every action has an equal and opposite ___.

Every action has an equal and opposite ___.

scienceGrade8
Grade8
science

Which force is responsible for the motion of bodies falling and revolving around the Earth?

Which force is responsible for the motion of bodies falling and revolving around the Earth?

scienceGrade8
Grade8
science

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

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

scienceGrade8
parallel
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

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.