# Homework WB 18th March Conduction, Convection, Radiation

Homework WB 18th March
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Slide 1: Tekstslide
ScienceLower Secondary (Key Stage 3)

In deze les zitten 22 slides, met interactieve quizzen en tekstslides.

Lesduur is: 30 min

## Onderdelen in deze les

Homework WB 18th March

#### Slide 1 -Tekstslide

What is conduction?
A
The transfer of heat through sound waves.
B
The transfer of heat through radiation.
C
The transfer of heat through direct contact.
D
The transfer of heat through convection.

#### Slide 2 -Quizvraag

Which material is a good conductor of heat?
A
Metal
B
Plastic
C
Wood
D
Glass

#### Slide 3 -Quizvraag

What happens to the particles in a good conductor when heat is applied?
A
The particles expand and become lighter.
B
The particles vibrate and transfer heat energy.
C
The particles remain stationary.
D
The particles absorb the heat and become cold.

#### Slide 4 -Quizvraag

How does conduction differ from convection?
A
Conduction occurs in solids, while convection occurs in gases.
B
Convection requires a heat source, while conduction does not.
C
Conduction involves direct contact, while convection involves the movement of fluids.
D
Conduction is faster than convection.

#### Slide 5 -Quizvraag

What is an example of conduction?
A
B
Touching a hot pan and feeling the heat.
C
Air circulating in a room.
D
Steam rising from a boiling pot.

#### Slide 6 -Quizvraag

What is convection?
A
The transfer of heat through the movement of fluids.
B
The transfer of heat through direct contact.

#### Slide 7 -Quizvraag

Which of the following is an example of natural convection?
A
Boiling water in a pot.
B
Hot air rising from a heater.

#### Slide 8 -Quizvraag

How does convection differ from conduction?
A
Convection occurs only in solids.
B
Convection involves the movement of fluids, while conduction does not.

#### Slide 9 -Quizvraag

What role does convection play in the Earth's atmosphere?
A
It drives the movement of air masses and contributes to weather patterns.
B
It has no impact on atmospheric conditions.

#### Slide 10 -Quizvraag

What type of heat transfer occurs in a lava lamp?
A
Convection as the heated wax rises and cools, then sinks.
B
Radiation as the lamp emits light and heat.

#### Slide 11 -Quizvraag

Which method of heat transfer does not require a medium to travel through?
A
B
Reflection
C
Conduction
D
Convection

#### Slide 12 -Quizvraag

In which method of heat transfer do particles carry heat energy from one place to another?
A
B
Convection
C
Insulation
D
Conduction

#### Slide 13 -Quizvraag

Which method of heat transfer occurs through direct contact between particles?
A
Convection
B
Evaporation
C
D
Conduction

#### Slide 14 -Quizvraag

What type of heat transfer involves the movement of electromagnetic waves?
A
Conduction
B
C
Vibration
D
Convection

#### Slide 15 -Quizvraag

Which method of heat transfer is most effective in a vacuum?
A
Insulation
B
C
Convection
D
Conduction

#### Slide 16 -Quizvraag

Insulation and r value
The R-value is a measure of how well a barrier, such as a layer of insulation, a window, a wall or ceiling, resists the flow of heat by conduction. The higher the R-value the better the performance. So the best insulators have the higher R values.

#### Slide 17 -Tekstslide

What is the purpose of insulation in a building?
A
To increase noise levels
B
To improve air quality
C
To attract pests
D
To regulate temperature and reduce energy consumption

#### Slide 18 -Quizvraag

Which material is a common form of insulation used in homes?
A
Fiberglass
B
Aluminum foil
C
Plastic wrap
D
Concrete

#### Slide 19 -Quizvraag

What is the R-value of insulation a measure of?
A
Its thermal resistance
B
Its color
C
Its flexibility
D
Its weight

#### Slide 20 -Quizvraag

What are the benefits of properly installed insulation?
A
Higher maintenance costs
B
Lower energy bills and increased comfort
C
Health hazards
D
Unpleasant odors

#### Slide 21 -Quizvraag

What is the recommended insulation for attics in cold climates?
A
Low R-value insulation like paper
B
High R-value insulation such as cellulose or spray foam
C
No insulation needed
D
Metal sheets