AI-Verified Solution
15 views
Which of these is an example of a non-contact force? A) A person pushing a trolley B) A magnet attracting a paperclip C) Wind blowing a tree D) A chair pushing against a person E) A person stretching a rubber band
Answer
B) A magnet attracting a paperclip is a non-contact force because magnetic forces act at a distance without the objects touching. The other options involve contact forces where objects physically push or pull on each other.
Explanation
What you are looking for
A non-contact force is a force that can act between objects even when they are not physically touching.
Check each option
- A) A person pushing a trolley: contact force, the person must touch the trolley to push it.
- B) A magnet attracting a paperclip: non-contact force, the magnetic force can pull the paperclip without touching it.
- C) Wind blowing a tree: contact force, air particles collide with the tree.
- D) A chair pushing against a person: contact (normal) force, requires touching.
- E) A person stretching a rubber band: contact force, hands pull on the rubber band.
Why the magnet example is different
Magnetism is one of the common non-contact forces (along with gravity and electrostatic force). It acts through a magnetic field, so the objects do not need to be in contact.
Want a deeper explanation? Ask our AI ๐
Skills You Achive
identifying forces
classifying contact vs non-contact forces
basic physics reasoning
Related Questions
- Electric Field on the Axis of a Charged Ring
- Particles in Solids vs Gases Table Answers
- Change in Temperature of Heated Copper Pipe
- Angle of Refraction as the Dependent Variable
- Temperature Change of a Heated Copper Pipe
- Forca centripetale e automobilit (m=800 kg)
- Hammer vs Feather in Vacuum: Which Value Differs?
- Which observations come from a triangular glass prism?
Comments (0)
Please to leave a comment.