Library›Physics in Plain Sight›One card

A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

ScienceOne small ahaPhysics concept

This resistance to motion between touching surfaces warms your hands when you rub them together.

Think it. Then flip it. ahamoraTap to reveal Back to the cue
ScienceOne small aha
Your new ahaFriction

Friction can oppose relative movement between surfaces. Source: Friction ↗

ahamoraReference ↗

Keep the thread going

One answer is a beginning.

Share a little curiosity, or follow it into the full collection.

Flip the full deck →

More from Physics in Plain Sight

A few more worth knowing.

  1. 03An object's resistance to a change in motion, described by Newton's first law.RECALL
    Inertia

    Inertia is the resistance to a change in motion described by Newton's first law.

    Open this card ↗
  2. 04This quantity equals an object's mass multiplied by its velocity.RECALL
    Momentum

    Momentum measures an object's motion as the product of its mass and velocity.

    Open this card ↗
  3. 05A swimmer pushes water backwards and moves forwards: this law pairs equal and opposite forces.RECALL
    Newton's Third Law

    Newton's third law says every action produces an equal and opposite reaction, as when a swimmer pushes water back to move ahead.

    Open this card ↗