#3. Heat Transfer Technologies: Outcome B2

1

Which material is the most efficient conductor of heat?

gold

glass

wood

plastic

1

What is the reason radiators and hot air vents are typically located near the bottom of walls in homes and buildings?

Hot air rises

Hot air sinks

Cold air rises

Cold air sinks

1

Observe the two containers of water shown. Both have the same temperature. How do their respective heat energies compare?

The 1 kg container has twice the heat energy of the 10 kg container.

The 1 kg container has 10 times the heat energy of the 10 kg container.

The 10 kg container has 10 times the heat energy of the 1 kg container.

Both containers possess identical heat energy.

1

Which of the following would be most effective at transferring heat?

A pan with a copper bottom

A shiny steel pan

A ceramic dish

A glass pan

1

Why is a sandy beach on a sunny day a lot warmer than the lake water?

Sand has a higher specific heat capacity than water.

Water requires much more energy to heat compared to sand.

There is more sand than water, leading to quicker heating.

Water and sand have the same heating rate, but water starts cooler.

1

What is the reason most pan handles are made of plastic rather than metal?

Metal is a superior material, but plastic is more cost-effective.

Plastic absorbs more heat compared to metal.

Plastic insulates better than metal.

Metal insulates better than plastic.

1

Match the term to the definition

Stavka koja se može prevući		Odgovarajuća stavka
Unit for how much energy is spent doing work		Temperature
average of all kinetic energy in an object		specific heat capacity
measure of a substance’s ability to absorb or lose heat		Heat
sum of all kinetic energy in an object		Joule

1

8. What amount of energy is required to raise 1g of water 10 C?
Give 3-digit answer with the proper unit. Example: 12.3 J

1

What metal has a specific heat capacity below 1?

Water

Glass

Iron

Sand

1

Which container would require more energy to raise its temperature by 10°C?

A 500mL beaker filled with sand

A 500mL beaker filled with air

A 500mL beaker filled with motor oil

A 500mL beaker filled with vegetable oil

1

For frying french fries in very hot oil, which type of oil should you opt for?

Higher specific heat capacity

Lower specific heat capacity

Neither would affect the cooking of the fries

1

Why is water commonly used as a coolant in car radiators?

High specific heat capacity of water.

Cost-effectiveness and abundance of water.

Rapid cooling ability of water.

Both A and B

1

If you have a beaker with 100g of water, approximately how much energy is needed to raise the water temperature by 5°C?

420 J

210 J

2100 J

1000 J

Which material is the most efficient conductor of heat?

What is the reason radiators and hot air vents are typically located near the bottom of walls in homes and buildings?

Observe the two containers of water shown. Both have the same temperature. How do their respective heat energies compare?

Which of the following would be most effective at transferring heat?

Why is a sandy beach on a sunny day a lot warmer than the lake water?

What is the reason most pan handles are made of plastic rather than metal?

Match the term to the definition

8. What amount of energy is required to raise 1g of water 10 C?Give 3-digit answer with the proper unit. Example: 12.3 J

What metal has a specific heat capacity below 1?

Which container would require more energy to raise its temperature by 10°C?

For frying french fries in very hot oil, which type of oil should you opt for?

Why is water commonly used as a coolant in car radiators?

If you have a beaker with 100g of water, approximately how much energy is needed to raise the water temperature by 5°C?

Which material is the most efficient conductor of heat?

What is the reason radiators and hot air vents are typically located near the bottom of walls in homes and buildings?

Observe the two containers of water shown. Both have the same temperature. How do their respective heat energies compare?

Which of the following would be most effective at transferring heat?

Why is a sandy beach on a sunny day a lot warmer than the lake water?

What is the reason most pan handles are made of plastic rather than metal?

Match the term to the definition

8. What amount of energy is required to raise 1g of water 10 C?Give 3-digit answer with the proper unit. Example: 12.3 J

What metal has a specific heat capacity below 1?

Which container would require more energy to raise its temperature by 10°C?

For frying french fries in very hot oil, which type of oil should you opt for?

Why is water commonly used as a coolant in car radiators?

If you have a beaker with 100g of water, approximately how much energy is needed to raise the water temperature by 5°C?

8. What amount of energy is required to raise 1g of water 10 C?
Give 3-digit answer with the proper unit. Example: 12.3 J

8. What amount of energy is required to raise 1g of water 10 C?
Give 3-digit answer with the proper unit. Example: 12.3 J