GCSE D&T Unit 3 - Powering Systems

Energy is the capacity to do work, what is the name given to stored energy?

• Kinetic
• Potential

What is the name given to energy referring to motion?

• Kinetic
• Potential

Energy stored as batteries, gases, solid fuel and food is known as what type of storage?

• Mechanical Storage
• Chemical Storage

Energy stored as compression, tension and motion is known as what type of storage?

• Mechanical Storage
• Chemical Storage

A battery stores chemical energy in a series of cells, each cell is usually how many volts (V)?

• 0.5V
• 1V
• 1.5V
• 2

Who is responsible for delivering mains power electricity to our homes?

• British Gas
• The National Grid
• Eon

Electrical power is measured in kilowatt-hours, what is the abbreviation for this?

• kWh
• KH
• WH

LED bulbs are around how many times more efficient then older style bulbs?

• 3 times
• 4 times
• 5 times
• 6 times

Non-finite energy sources are often use to power systems, which of these is an example of a non-finite energy source?

• Wind
• Coal
• Gas
• Oil

Using an adaptable turbine, WaterLily uses what to create movement in order to generate power?

• Air and Water
• Air and Wind
• Wind and Water