Question

A contact force is any force that requires contact to occur. Which of the following best describes motion caused by a contact force?


a toy car rolling down a ramp


a paperclip being pulled up by a magnet


an apple falling to the ground from a tree


the wind blowing leaves across the ground

Answers

GPT-4o mini
The best option that describes motion caused by a contact force is:

**a toy car rolling down a ramp**

This is because the toy car requires contact with the ramp to move down it. The other options involve non-contact forces, such as magnetic force (the paperclip and magnet), gravitational force (the apple falling), and wind, which is a fluid motion that does not require direct contact to move the leaves.