1. what is 67 K equivalent to in Celsius?

answer: -206.15 C

2. what is 458.9 Celsius in K?
answer: 732.05

3. heat is closely related to:
a)temperature
b)thermal energy
c)force
d)convection currents
answer: b

4. What does a low efficiency score reveal about a home in terms of heat transfer?
a)the home is not using solar or geothermal heating
b)the home is very easy to cool in the summer but hard to heat properly in winter
c)the home is very easy to heat in the winter but hard to keep cool in the summer
d)the home has a lot of unwanted and incidental heat transfer
answer: d

5. which of the following examples best represents heat?
a)a sample of platinum at 76 degrees Celsius
b)wood burning releases 57 J of energy
c)wood burns at 350 degrees Celsius
d)a toy car generates 45 J of kinetic energy
answer: b

6. which of the following best shows the transfer of heat by conduction?
a) the hot sand in very painful to step on with bare feet
b)the soup pot boils from the bottom towards the top
c)the wood stove is painted a flat black colour for maximum heating effect
d)the use of fossil fuels produces smog and carbon dioxide
answer: a

I agree with all six

1. To convert 67 K to Celsius, you need to subtract 273.15 from the given temperature. So, 67 K is equivalent to -206.15°C.

2. To convert 458.9°C to K, you need to add 273.15 to the given temperature. So, 458.9°C is equivalent to 732.05 K.

3. Heat is closely related to thermal energy (b).

4. A low efficiency score reveals that the home has a lot of unwanted and incidental heat transfer (d).

5. The best example that represents heat is wood burning, which releases 57 J of energy (b).

6. The transfer of heat by conduction is best illustrated by the fact that hot sand is very painful to step on with bare feet (a).

To find the answer to question 1, you need to convert 67 Kelvin (K) to Celsius (°C). The formula to convert Kelvin to Celsius is: °C = K - 273.15. So, by substituting the value of K into the formula, you get °C = 67 - 273.15 = -206.15.

To find the answer to question 2, you need to convert 458.9 Celsius (°C) to Kelvin (K). The formula to convert Celsius to Kelvin is: K = °C + 273.15. By substituting the value of °C into the formula, you get K = 458.9 + 273.15 = 732.05.

To determine the answer to question 3, you need to identify the concept that is closely related to heat. The options given are temperature, thermal energy, force, and convection currents. Heat is closely related to thermal energy, so the correct answer is b) thermal energy.

To answer question 4, you need to understand the implications of a low efficiency score in terms of heat transfer for a home. The options given are: the home is not using solar or geothermal heating; the home is very easy to cool in the summer but hard to heat properly in winter; the home is very easy to heat in the winter but hard to keep cool in the summer; and the home has a lot of unwanted and incidental heat transfer. A low efficiency score indicates that the home has a lot of unwanted and incidental heat transfer, so the correct answer is d) the home has a lot of unwanted and incidental heat transfer.

To answer question 5, you need to identify the example that best represents heat. The options given are: a) a sample of platinum at 76 degrees Celsius, b) wood burning releases 57 J of energy, c) wood burns at 350 degrees Celsius, or d) a toy car generates 45 J of kinetic energy. The example that best represents heat is when wood burns and releases 57 J of energy, so the correct answer is b) wood burning releases 57 J of energy.

To answer question 6, you need to identify the example that best shows the transfer of heat by conduction. The options given are: a) the hot sand is very painful to step on with bare feet, b) the soup pot boils from the bottom towards the top, c) the wood stove is painted a flat black color for maximum heating effect, or d) the use of fossil fuels produces smog and carbon dioxide. The transfer of heat by conduction occurs when hot sand is very painful to step on with bare feet, so the correct answer is a) the hot sand is very painful to step on with bare feet.