0
What else can I help you with?
Which best describes how energy how heat energy moves within a system?
Heat energy is transferred from warmer objects to cooler objects.
When two objects are in contact what is heat best transferred by?
When two objects are in contact, heat is best transferred by conduction, which occurs through direct contact between the molecules of the two objects. Heat is transferred as the molecules vibrate and collide with each other, increasing the energy transfer between the objects.
Which color is the best absorber and emmiter of heat?
Black is the best absorber and emitter of heat. Black objects absorb most of the incoming radiation, converting it into heat, and they also emit thermal radiation efficiently.
Do all objects equally conduct absorb emit heat?
The emitting and absorbtion of heat is related to ' thermal radiation', whereas the 'conduction' of heat is a separate topic in physics. Firstly, thermal radiation is not equivalent across all substances. Darker coloured 'objects' such as those with a 'matt black' colour are the best emitters and absorbers of 'heat'. Lighter silvered 'objects' are the poorest emitters, the poorest absorbers, and the best reflectors of heat. Similarly, not all objects equally conduct heat. Metals are the best conductors of heat; and so non-metals are the worst. All Insulators do not conduct heat. Examples of good insulators are: plastic and wood.
Do cold things have heat?
No, cold things do not have heat. Heat is a form of energy that is transferred from hot objects to cold objects. Cold objects have less heat energy compared to hot objects.
Does cold objects have heat energy?
Yes, even cold objects have heat energy. Heat energy is a form of energy that is present in all objects, with colder objects having less heat energy compared to hotter objects. This energy is related to the temperature of an object, with colder objects having lower temperatures and less heat energy.
Does heat flow up to down?
No. Heat is not affected by gravity. Heat flows from hotter objects to colder objects.
What is a true statement about heat?
Heat always flows from warmer objects to cooler objects.
Does heat travel from cold objects to hot objects?
No, heat naturally flows from hot objects to cold objects. This is based on the second law of thermodynamics, which states that heat always moves in the direction that increases the entropy of a system.
Do white objects absorb less heat than black?
white objects reflect heat while black objects absorb it
Does heat always flow from cooler objects to warmer?
Heat always flows from warmer objects to cooler objects, unless you have a device (like a heat pump) to prevent this. The natural tendency is for two or more objects at different temperatures to eventually all have the same temperature and this is accomplished by heat flowing from the warmer objects to the cooler objects.
Can two objects have the same temparature but different heat?
Yes, two objects can have the same temperature but different heat because heat depends not only on temperature but also on the mass and specific heat capacity of the objects. Objects with different masses or specific heat capacities can have different amounts of heat energy even if they are at the same temperature.
