- What actually causes gravity?
- What are the 4 main properties of electromagnetic waves?
- What are 5 facts about gravity?
- Why is gravity so weird?
- Do we understand gravity?
- What are two kinds of electromagnetic forces?
- What is mean by electromagnetic force?
- Can gravity be created?
- What are two properties of gravitational force?
- What are the properties of electromagnetic force?
- Can gravity be proven?
- Where is gravity the strongest?
- Who created gravity?
- What does 9.81 mean?
- Is gravity a property of mass?
- What are some examples of gravity?
- How gravity is calculated?
- What are the properties of gravitational force?
What actually causes gravity?
The answer is gravity: an invisible force that pulls objects toward each other.
So, the closer objects are to each other, the stronger their gravitational pull is.
Earth’s gravity comes from all its mass.
All its mass makes a combined gravitational pull on all the mass in your body..
What are the 4 main properties of electromagnetic waves?
Every form of electromagnetic radiation, including visible light, oscillates in a periodic fashion with peaks and valleys, and displaying a characteristic amplitude, wavelength, and frequency that defines the direction, energy, and intensity of the radiation.
What are 5 facts about gravity?
Six weighty facts about gravityGravity is by far the weakest force we know. … Gravity and weight are not the same thing. … Gravity makes waves that move at light speed. … Explaining the microscopic behavior of gravity has thrown researchers for a loop. … Gravity might be carried by massless particles called gravitons.More items…•
Why is gravity so weird?
2. Why is gravity so weird? No force is more familiar than gravity — it’s what keeps our feet on the ground, after all. And Einstein’s theory of general relativity gives a mathematical formulation for gravity, describing it as a “warping” of space.
Do we understand gravity?
However, if we are to be honest, we do not know what gravity “is” in any fundamental way – we only know how it behaves. Gravity is a force of attraction that exists between any two masses, any two bodies, any two particles. Gravity is not just the attraction between objects and the Earth.
What are two kinds of electromagnetic forces?
There are actually two general types of electromagnetic forces: electrostatic forces and magnetic forces.
What is mean by electromagnetic force?
The fundamental force associated with electric and magnetic fields. The electromagnetic force is carried by the photon and is responsible for atomic structure, chemical reactions, the attractive and repulsive forces associated with electrical charge and magnetism, and all other electromagnetic phenomena.
Can gravity be created?
Artificial gravity can be created using a centripetal force. A centripetal force directed towards the center of the turn is required for any object to move in a circular path. In the context of a rotating space station it is the normal force provided by the spacecraft’s hull that acts as centripetal force.
What are two properties of gravitational force?
Gravitational force−Properties:(1) It is a universal attractive force. It is directly proportional to the product of the masses of the two bodies.(2) It obey inverse square law.(3) It is the weakest force known in nature.
What are the properties of electromagnetic force?
The properties of electromagnetic force are as follows: It obeys the inverse square law. It may be attractive or repulsive in nature. It is a long range force. The photon is the field particle of electromagnetic force. It is about 1036 times stronger than the gravitational force.More items…•
Can gravity be proven?
What is the definitive proof there is gravity? There isn’t one. That is not how science works. Gravity is the name we give to the phenomenon that objects accelerate towards each other when they are otherwise left to their own devices.
Where is gravity the strongest?
Gravity is strongest at the Earth’s surface, and its weakest at the Earth’s core.
Who created gravity?
Sir Isaac NewtonSir Isaac Newton was an English mathematician and mathematician and physicist who lived from 1642-1727. The legend is that Newton discovered Gravity when he saw a falling apple while thinking about the forces of nature.
What does 9.81 mean?
Gravity (or the acceleration due to gravity) is 9.81 meters per second squared, on the surface of Earth, because of the size of Earth and the distance we are on its surface from its center.
Is gravity a property of mass?
General relativity describes gravity as geometry. The fabric of the universe – the four dimensions of space and time – is full of lumps and bumps created by the presence of mass and energy. … To look at it a slightly different way, gravity is not what one body does directly to another, but what a body’s …
What are some examples of gravity?
Some examples of the force of gravity include:The force that holds the gases in the sun.The force that causes a ball you throw in the air to come down again.The force that causes a car to coast downhill even when you aren’t stepping on the gas.The force that causes a glass you drop to fall to the floor.More items…
How gravity is calculated?
Fgrav = m*g where d represents the distance from the center of the object to the center of the earth. In the first equation above, g is referred to as the acceleration of gravity. Its value is 9.8 m/s2 on Earth. That is to say, the acceleration of gravity on the surface of the earth at sea level is 9.8 m/s2.
What are the properties of gravitational force?
The gravitational force has the following properties: It obeys the inverse square law. It is always attractive in nature. It is a long range force. … The graviton is the field particle of gravitational force. It is the weakest force operating in nature.More items…•