Sustainable Scotland

What are the three states of matter?

• Solids, liquids, and gases

• Solids, liquids, and plasma

• Solids, gases, and plasma

• Liquids, gases, and plasma

What is the process called when a solid changes to a liquid?

• Melting

• Freezing

• Condensing

• Evaporating

What is temperature measured in?

• Degrees Celsius (°C)

• Joules (J)

• Meters per second (m/s)

• Watts (W)

What is heat measured in?

• Joules (J)

• Degrees Celsius (°C)

• Meters per second (m/s)

• Watts (W)

What is the speed of (infra-red) radiation in a vacuum?

• 300,000,000 meters per second

• 150,000,000 meters per second

• 200,000,000 meters per second

• 250,000,000 meters per second

Which types of surfaces are good emitters and absorbers of heat radiation?

• Light surfaces

• Dark surfaces

• Smooth surfaces

• Shiny surfaces

What are some of the main sources of heat loss in homes and buildings?

• Roofs, walls, windows, doors, floor

• Furniture, carpets, curtains

• Lights, fans, air conditioners

• Paint, wallpaper, tiles

What is the relationship between heat loss in buildings and the temperature difference between the inside and outside of the building?

• The greater the temperature difference, the greater the heat loss

• The smaller the temperature difference, the greater the heat loss

• There is no relationship

• Heat loss is always constant

How can materials be used in building design to reduce heat loss?

• Using good heat insulators like double/triple glazing, cavity wall insulation, roof insulation

• Using thin glass windows

• Using metal walls

• Using wooden floors

What are the products of photosynthesis?