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When you touch a cold object state whether heat energy flows from the object to your Hand or from your hand to the object?
Wiki User
∙ 10y ago
Heat has the natural tendency to flow from a warmer to a colder object. If your hand is warmer than the "cold object", then heat will flow from your hand to that object.
Wiki User
∙ 10y ago
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What is the state of matter for an object that has both definite volume and definite shape?
Liquid is the state of matter that takes the shape of it's container and flows.
What must occur to the heat energy of an object in order of a phase change of the state of matter?
heat is added
What are the first and second laws of thermodynamics explain how energy flows through the rainforest?
The First Law of Thermodynamics: (Conservation) Energy can be changed from one form to another, but it cannot be created or destroyed. The total amount of energy and matter in the Universe remains constant, merely changing from one form to another. The second law of Thermodynamics: In all energy exchanges, if no energy enters or leaves the system, the potential energy of the state will always be less than that of the initial state. This is also commonly referred to as entropy. I would imagine that energy flows through a rain forest - as it does in any other location!
Why are noble metals difficult to oxidize?
Noble metals are by definition stable and thus in a low energy state. Oxidizing them would put them in a much higher energy state. Nature prefers low energy. That is one reason why water flows down hill. It is flowing to lower energy. So a noble metal is quite happy in that state and is difficult to oxidise. Platinum and gold are two such examples.
What is the potential energy of a 40 N object 10 meters above its reference point?
the energy forms back into its original state,form, and size. The reference point would be 4.556
when a cold object is touched state whether the heat energy flows from the person's hand to the object or the object to the person's hand and why is it so?
Heat always flows from hot to cold. Cold is the absence of heat.
In what general direction does energy flow in the northern hemisphere?
Energy always flows from a HIGHER state to a Lower state, regardless of the Hemisphere you are in.
What change of state and what energy changes occur when water freezes?
the state change is from liquid to solid and the energy change is cold energy to heat energy
What is dynamic energy?
is the state of an object of being in motion or movement
If work done on an object is equal to object's change in kinetic energy this the state of?
the Work-Energy Theorem states the work done is equal to the change in kinetic energy.
Why does heat energy flow from warm areas to cooler areas?
Nature always tries to come to an state of equilibrium. Water flows from a higher to a lower level. Electricity flows from a higher potential to a lower potential. Thus heat is transferred from a warmer to a colder area until an equilibrium is reached.
Why is kinetic energy more in liquid state?
Than in ??what?? state Kinetic energy is greater in liquid state because the liquid substance is moving. If the kinetic energy was less than in liquid state, the object of the state would become solid.
Why cant you change temperature and phase at the same time?
When an object is changing state form liquid to a gas the object is absorbing energy to allow its molecules to expand. it cant increase in temperature because it is using the energy that it is absorbing. When an object is changing state form liquid to a gas the object is absorbing energy to allow its molecules to expand. it cant increase in temperature because it is using the energy that it is absorbing.
A person places a metal spoon that is at room temperature into a bowl of hot soup how will the thermal energies of the spoon and the soup be affected?
the spoon will increase in thermal energy, and the soup will decrease in thermal energy. Reason: Thermal energy is the total of all the kinetic and potential energy of the atoms in an object. When the thermal energy of a substance increases, its particles move faster. If the thermal energy of a solid increases enough, it melts into a liquid. The liquid state of a substance always has a higher thermal energy than its solid state. If the liquid continues to gain thermal energy, its particles speed up more. When the particles of a liquid have absorbed enough energy to escape the forces between them, the liquid becomes a gas. The substance has undergone another phase change. As the total kinetic energy of the particles in an object increases, the object gets warmer. Heat flows from a warmer object to a cooler one.
How do kinetic and potential differ?
Kinetic energy is due to the motion of an object and is a vector energy. Potential energy is due to something's position or state and is a scalar energy.
State the two factors that determine the amount of work done on an object?
Energy and pressure
What do the terms boiling points and freezing points mean?
The boiling point of an object is the point at which the substance's atoms/molecules because too "excited" and begin to break free from their current liquid state. Heat is a type of energy. Heating an object makes the object's atoms move quicker and quicker, until they eventually break that bond that they have with each other and move on into the next energetic state. A solid is a low-energy state, a liquid is a moderate-energy state, and as you guessed, a gas is a high-energy state. All this energy talk is the energy in the atoms, to clarify. The faster the atoms move, the higher the temperature, the closer it is to moving on to the next energetic state. The freezing point of an object is just the opposite, it is the point where enough energy is lost within the atoms/molecules of the substance to move down to the less-energetic state, a solid.
