3 games from the Friction Ramp simulation: Sort It, Order It, Predict It. Each one has a Warm up, Explorer and Expert level.
Does it need MORE friction or LESS friction? Drag each card into the right group – or tap a group. You have 2 tries for each one.
Order the surfaces from LEAST friction to MOST friction. Drag the cards into the boxes in the right order, then press Check. You have 2 tries for each one.
Think about friction. Read the question, think, then tap your answer. You have 2 tries for each one.