Das Hebelgesetz - the Law of the Lever

Der Flaschenzug – The Block and Tackle

A block and tackle is – like the lever – a simple machine. It consists of several wheels which are called pulleys.

Block and tackles allow people to pull heavier objects than they could using only their muscles. This allowed ancient countries to build large sailing ships and explore the world, because people would not be able to pull the sails into the right place without them. Block and tackles can also pull large stone blocks upward, and so they help people to build large buildings.

A pulley is a rope wrapped around a wheel. It changes the direction of force. A basic block and tackle has a rope attached to a stationary point looped around one wheel and then around a second wheel. Pulling on the rope pulls the two wheels closer together.

Now it’s your turn: Build your own block and tackle using materials in the experiment boxes. Draw a sketch of your pulley in your exercise book.

Der Flaschenzug – The Block and Tackle

A block and tackle is – like the lever – a simple machine. It consists of several wheels which are called pulleys.

Block and tackles allow people to pull heavier objects than they could using only their muscles. This allowed ancient countries to build large sailing ships and explore the world, because people would not be able to pull the sails into the right place without them. Block and tackles can also pull large stone blocks upward, and so they help people to build large buildings.

A pulley is a rope wrapped around a wheel. It changes the direction of force. A basic block and tackle has a rope attached to a stationary point looped around one wheel and then around a second wheel. Pulling on the rope pulls the two wheels closer together.

Now it’s your turn: Build your own block and tackle using materials in the experiment boxes. Draw a sketch of your pulley in your exercise book.

Der Flaschenzug – The Block and Tackle

A block and tackle is – like the lever – a simple machine. It consists of several wheels which are called pulleys.

Block and tackles allow people to pull heavier objects than they could using only their muscles. This allowed ancient countries to build large sailing ships and explore the world, because people would not be able to pull the sails into the right place without them. Block and tackles can also pull large stone blocks upward, and so they help people to build large buildings.

A pulley is a rope wrapped around a wheel. It changes the direction of force. A basic block and tackle has a rope attached to a stationary point looped around one wheel and then around a second wheel. Pulling on the rope pulls the two wheels closer together.

Now it’s your turn: Build your own block and tackle using materials in the experiment boxes. Draw a sketch of your pulley in your exercise book.