Wear gloves when lifting the beam by hand. The wood tends to splinter. The person standing on the lever should have a spot to hold on in case she or he loses balance. Put on the gloves. Lift the long ...

The questions in this quiz are suitable for GCSE physics students studying moments, moments and balanced objects, levers and gears. If you struggled with the quiz, don't panic - we've got you!

The soda can tab is more than meets the eye. In its resting state, the tab is what engineers call a "second-class" lever: the force you apply only moves one way, like a wheelbarrow. When you ...