Question

select all that apply
which everyday scenarios are examples of friction?

□ inflating a balloon by blowing into it
□ a deep canyon with a river at the bottom of it
□ sliding a book across a desk
□ tires gripping the pavement of a road

Explanation:

• Inflating a balloon by blowing into it is about air pressure, not friction.
• A deep canyon with a river at the bottom is related to geological processes like erosion (not friction).
• Sliding a book across a desk: There is friction between the book and the desk surface that resists the sliding motion.
• Tires gripping the pavement of a road: Friction between the tires and the road allows the vehicle to move, stop, and turn.

Answer:

C. sliding a book across a desk, D. tires gripping the pavement of a road