Non-contact Forces

Q1: What type of force acts without any physical contact between objects?
Answer: Non-contact
Explanation: Non-contact forces do not require the objects to touch; they can act from a distance.
Q2: What force pulls everything towards the Earth?
Answer: Gravitational
Explanation: The Earth attracts all objects with a force called gravitational force, which is a non-contact force.
Q3: What type of force is exerted by a magnet on iron filings?
Answer: Magnetic
Explanation: Magnetic force is a non-contact force that attracts magnetic materials like iron without touching them.
Q4: What force causes a comb to attract bits of paper after being rubbed on hair?
Answer: Electrostatic
Explanation: Rubbing the comb charges it, creating an electrostatic force that pulls light objects like paper.
Q5: What type of force acts between two electrically charged objects?
Answer: Electrostatic
Explanation: Electrostatic force occurs between charged objects and does not require physical contact.
Q6: Which non-contact force acts between all objects in the universe having mass?
Answer: Gravitational
Explanation: Gravitational force is universal and acts between any two objects with mass, even without contact.
Q7: What is the nature of force between two unlike magnetic poles?
Answer: Attractive
Explanation: Unlike poles of magnets attract each other due to magnetic force.
Q8: What is the nature of force between two like electric charges?
Answer: Repulsive
Explanation: Like charges repel each other due to electrostatic force.
Q9: What kind of force makes planets revolve around the sun?
Answer: Gravitational
Explanation: The gravitational pull of the sun keeps the planets in orbit without any physical contact.
Q10: What force acts on objects dropped from a height?
Answer: Gravity
Explanation: Gravity pulls the object towards Earth, even though there is no contact.

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