Levers Lift Loads

Looking Around 2 — Games We Play / About Me. A see-saw, a favourite playground game, is a lever, connecting this topic to everyday play.

• A lever is a bar or plank that rests on a support point, called a fulcrum.
• A lever helps us lift or move heavy things with less effort.
• See-saws, bottle openers, and scissors all use the idea of a lever.

Verbal: A lever is a bar that turns on a fixed point (the fulcrum). Pushing down on one end lifts a load on the other end.

Symbolic: Push down on one end -> bar turns at the fulcrum -> other end lifts up.

Level 1 — What is a lever?

A see-saw at the playground is a simple lever — one side goes down, the other goes up.

Level 1 — Levers help lift

A long bar under a heavy rock, resting on a small stone (fulcrum), can help lift the rock.

Level 2 — Everyday levers

A bottle opener, a pair of scissors, and a claw hammer removing a nail all use lever action.

Level 2 — India

Farmers sometimes use a long wooden pole as a lever to move heavy stones out of a field.

How does a see-saw let a lighter child lift a heavier friend?

Step 1 — The see-saw is a bar resting on a central fulcrum.
Step 2 — Pushing down hard on one end makes the other end go up.
Step 3 — Sitting farther from the middle gives more lifting power.
Answer: A see-saw uses lever action to lift a friend on the other side.

• What is the support point of a lever called?
• Name one playground object that works like a lever.
• How does a bottle opener use lever action?

Stretch: Find a pair of scissors at home and notice where they pivot (turn) — that pivot point is like a fulcrum.

Revision tip: Remember: a lever is a bar on a fulcrum that helps lift or move things with less effort.

Open the Practice tab for graded questions on Levers Lift Loads.