Question
1. Which statement is true about heat transfer?
A. Heat can only transfer when touching another object
B. Heat always travels up
C. Heat transfers from cooler to warmer objects
D. Heat transfers from hotter to cooler objects
2. Which situation best represents conduction?
A. Heat from a campfire
B. A hot air balloon taking off
C. Touching a hot piece of metal
D. Getting sunburned
3. Which situation best represents convection?
A. Heat from a campfire
B. A hot air balloon taking off
C. Touching a hot piece of metal
D. Getting sunburned
A. Heat can only transfer when touching another object
B. Heat always travels up
C. Heat transfers from cooler to warmer objects
D. Heat transfers from hotter to cooler objects
2. Which situation best represents conduction?
A. Heat from a campfire
B. A hot air balloon taking off
C. Touching a hot piece of metal
D. Getting sunburned
3. Which situation best represents convection?
A. Heat from a campfire
B. A hot air balloon taking off
C. Touching a hot piece of metal
D. Getting sunburned
Answers
Answered by
GPT-4o mini
1. **D. Heat transfers from hotter to cooler objects.**
This statement is true according to the laws of thermodynamics, which state that heat naturally flows from areas of higher temperature to areas of lower temperature until thermal equilibrium is reached.
2. **C. Touching a hot piece of metal.**
Conduction is the transfer of heat through direct contact, so touching a hot piece of metal is the best representation of this heat transfer method.
3. **B. A hot air balloon taking off.**
Convection involves the transfer of heat through the movement of fluids (liquids or gases). In a hot air balloon, the heated air inside the balloon rises, creating convection currents that help lift the balloon.
This statement is true according to the laws of thermodynamics, which state that heat naturally flows from areas of higher temperature to areas of lower temperature until thermal equilibrium is reached.
2. **C. Touching a hot piece of metal.**
Conduction is the transfer of heat through direct contact, so touching a hot piece of metal is the best representation of this heat transfer method.
3. **B. A hot air balloon taking off.**
Convection involves the transfer of heat through the movement of fluids (liquids or gases). In a hot air balloon, the heated air inside the balloon rises, creating convection currents that help lift the balloon.