The video shows a person holding a white card with black text and purple paw prints on it. The card has the title "What is the equation linking..." followed by three variables: M = moment, F = force, and d = distance. The person flips the card to reveal the answer "Efficiency = useful power out total power in" and then flips it again to show the equation "M = F = W = d = time." The card also has the text "Primoose Kitten - YouTube Tutorials for Science and Maths."