Weak interaction , also called weak force or weak nuclear force, a fundamental force of nature that underlies some forms of radioactivity, governs the decay of unstable subatomic particles such as mesons, and initiates the nuclear fusion reaction that fuels the Sun.
Which fundamental interaction is responsible for radioactive decay?
The weak force, also called the weak nuclear interaction , is responsible for particle decay.
How fundamental forces plays their role in radioactive decay?
The residual effects of the strong force bind the protons and neutrons of the atomic nucleus together in spite of the intense repulsion of the positively charged protons for each other. The weak force manifests itself in certain forms of radioactive decay and in the nuclear reactions that fuel the Sun and other stars.
Which fundamental force is responsible for beta decay?
The strong nuclear force holds the kernels of matter, atomic nuclei, together, and powers the burning of stars. The effects of the weak force were first discovered at the turn of the 20th century, in the place where it is most obviously at work: in radioactive beta decay.
What are the fundamental forces of the universe?
There are four fundamental forces at work in the universe: the strong force, the weak force, the electromagnetic force, and the gravitational force . They work over different ranges and have different strengths. Gravity is the weakest but it has an infinite range.
What are the 5 fundamental forces of nature?
In physics, there are four observed fundamental interactions (also known as fundamental forces) that form the basis of all known interactions in nature: gravitational, electromagnetic, strong nuclear, and weak nuclear forces . Another proposal is a new weak force mediated by W′ and Z′ bosons. ...
Which is the weakest force?
Gravity . Gravitation is by far the weakest of the four interactions at the atomic scale, where electromagnetic interactions dominate.
What are the 4 fundamental forces in order of strength?
Ordered from strongest to weakest, the forces are 1) the strong nuclear force, 2) the electromagnetic force, 3) the weak nuclear force, and 4) gravity. If you take two protons and hold them very close together, they will exert several forces on each other.
What are weak and strong forces?
The Strong Nuclear Force is an attractive force between protons and neutrons that keep the nucleus together and the Weak Nuclear Force is responsible for the radioactive decay of certain nuclei.
Which of the two fundamental forces are attractive only?
The force of gravity between two objects is always attractive, but electrical and magnetic forces can attract or repel. Electrical charges come in two varieties: positive and negative.
What force is responsible for alpha decay?
In contrast to beta decay, the fundamental interactions responsible for alpha decay are a balance between the electromagnetic force and nuclear force .
What are the two types of forces?
- Contact Forces.
- Non-contact Forces.
What are the four fundamental forces from weakest to strongest?
- Gravitational Force – Weakest force; but has infinite range. ( Not part of the standard model)
- Weak Nuclear Force – Next weakest; but short range.
- Electromagnetic Force – Stronger, with infinite range.
- Strong Nuclear Force – Strongest; but short range.
Which fundamental force is always attractive?
Gravitational Force : This force is the weakest but has an infinite range. It has strength of 6 × 10 – 39 in comparison to the strength of the strong force. This force is always attractive acts between any two pieces of matter in nature.
How weak is gravity?
Gravity is a real weakling – 10 40 times weaker than the electromagnetic force that holds atoms together. ... According to string theorists' best ideas, gravity is so weak because, unlike the other forces, it leaks in and out of these extra dimensions.
What is the fifth force of nature?
Interaction of muons , the fifth and new force of nature discovered by scientists. Fifth force of nature can explain the acceleration of the expansion of the universe. Have you heard of muons? They are unstable subatomic particles, similar to the electrons, but 207 times heavier.
