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FAQs on Visual Worksheet: Types of Forces - Science Olympiad Class 4

1. What are the different types of forces in physics?
Ans. In physics, the main types of forces include gravitational force, electromagnetic force, strong nuclear force, and weak nuclear force. Additionally, we have contact forces such as friction, tension, normal force, and applied force.
2. How do contact forces differ from non-contact forces?
Ans. Contact forces require physical interaction between objects, such as friction and tension, while non-contact forces act at a distance without any physical contact, like gravitational and electromagnetic forces.
3. What is the role of gravitational force in everyday life?
Ans. Gravitational force is responsible for keeping us grounded on Earth, affecting the motion of celestial bodies, and governing phenomena such as tides and the orbits of planets.
4. Can you explain how frictional force works?
Ans. Frictional force opposes the relative motion of two surfaces in contact. It depends on the nature of the surfaces and the normal force pressing them together. There are two types: static friction (preventing motion) and kinetic friction (resisting motion).
5. What are the applications of different types of forces in engineering?
Ans. Different forces are crucial in engineering for designing structures, machines, and vehicles. Gravitational force is considered in load-bearing structures, friction is important in brakes and tires, while electromagnetism is applied in electrical engineering and electronics.
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