Pelton Wheel
The levers can be used to pump water from the lower reservoir to the upper reservoir. When the upper reservoir is full, the button will illuminate. When the button is pushed, the water is released from the upper reservoir and flows through the Pelton wheel to the lower reservoir.
The Pelton wheel is a turbine that has ‘buckets’ around the rim of a wheel. The wheel is turned by the force of flowing water hitting the buckets.
Turbines can be used in hydroelectric power stations to generate electricity by transferring the kinetic energy of flowing water to mechanical energy and then electrical energy (electricity), using a generator.
Different designs of turbine are used in different situations depending on how fast the water is flowing, and how far it falls before hitting the turbine.
Exploration Questions
Ask pupils the following questions as they explore the exhibit:
- How would you describe the design of the Pelton wheel and why do you think it is designed like this?
Example answer: Buckets, cups, to catch water so it will turn when water flows through it.
- What do you think the Pelton wheel is used for?
Example answer: To generate electricity.
- What do you think the levers are used for?
Example answer: Move the water from the lower reservoir to the upper reservoir.
Activity
- What happens when you move the levers?
Examples answer: Water moves from the lower reservoir to the upper reservoir.
- What happens when you push the button?
Example answer: Water flows from the upper reservoir, turns the wheel and flows to the lower reservoir.
Your donations make a real difference!
As a registered Scottish charity, our mission is to engage and inspire people of all ages and backgrounds to discover and enjoy science. Your generosity will allow us to continue to provide fun and informative outreach programmes for young people and to work with communities from the local area and across Scotland, making a real difference to people's lives. We appreciate your support.
Science Passport
Get unlimited access to the Science Mall for a year when you become a member of our Science Passport scheme.
Price
£44.25 per adult | £39.45 per concession | £34.50 per child | Under 3s go free!
Buying a Science Passport
The best way to purchase is online as you will be able to manage your Science Passport and renew through your online account in future and we will keep you up to date when your year is nearly up.