Improving Efficiency (OCR GCSE Physics A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What property of a material determines how much heat energy is lost through it?
What property of a material determines how much heat energy is lost through it?
Thermal conductivity
Which type of material is better at keeping heat inside a building?
Which type of material is better at keeping heat inside a building?
Materials with low thermal conductivity
What is the cavity in a wall?
What is the cavity in a wall?
Space between inner & outer walls
Why is insulating material packed into wall cavities?
Why is insulating material packed into wall cavities?
It has low thermal conductivity
What is the structure of double-glazed windows?
What is the structure of double-glazed windows?
Two glass layers with air/gas gap
Why does the gap in double-glazed windows reduce heat loss?
Why does the gap in double-glazed windows reduce heat loss?
Air/gas has low thermal conductivity
Where is loft insulation placed?
Where is loft insulation placed?
In the attic or roof space
Why is roof insulation particularly important?
Why is roof insulation particularly important?
Roof is a main area of heat loss
What seasonal benefit does wall cavity insulation provide?
What seasonal benefit does wall cavity insulation provide?
Warmer in winter, cooler in summer
What is the main goal of using insulation in buildings?
What is the main goal of using insulation in buildings?
Minimise heat loss