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Does physical change occur when energy is added or removed?
Physical Change
What energy transformation occur at the receiving station?
electromagnetic energy to sound energy
What are transformations that must occur to change your energy to electricity?
what is the tranformation of energy that must occur to change your energy to electricity
What energy transfers occur in an audio system?
The electronic energy audio signal is converted to magnetic energy to drive the speakers. The speakers convert magnetic energy to mechanical energy driving the speaker cone. The speaker cone vibrates the air creating audio energy.
What energy transformations occur in a LRT?
electrical energy to mechanical energy
Activation energy is necessary for a chemical reaction to occur because?
energy needs to be added to a molecular system to start the proccess
What does it mean to be safe?
When you are safeguarded from something, you are immune or resistant to its negative effects. For example, "I have safeguarded the system from viral attack" means "I have added measures to prevent negative effects that may occur from viral attack".
What does it mean to be safe guarded?
When you are safeguarded from something, you are immune or resistant to its negative effects. For example, "I have safeguarded the system from viral attack" means "I have added measures to prevent negative effects that may occur from viral attack".
Why do substance s expand when energy is added to them as heat?
When heat is added to a system, it increases the kinetic energy of the molecules. Increased K.E in system causes molecules to move further away from each other. This causes system to increase in volume. Significant increase in volume might not occur but at microscopic level it definitely changes.
Does physical change occur when energy is added or removed?
Physical Change
Why does beating occur in a spring-mass system when a driving force is added?
because laplace transformations occur
Why do adiabatic temperature changes occur?
In adiabatic process heat is neither added nor removed from the system. So the work done by the system (expansion) in adiabatic process will result in decrease of internal energy of that system (From I st law). As internal energy is directly proportional to the change in temperature there will be temperature drop in an adiabatic process.
What must occur to the heat energy of an object in order of a phase change of the state of matter?
heat is added
Is activation energy added or just there?
Activation energy is the amount of energy that should be gained by potential reactants, for a reaction to occur. A reaction can be occurred by reducing the activation energy of the reaction or increasing the activation energy of the reactants. Activation energy should be added.
What are the substances that are added to a reaction speed up the reaction?
Catalysts. They lower the amount of energy needed for the reaction to occur.
Source of energy in solar system?
The main source of energy in our solar system is the Sun, which emits significant quantites of electromagnetic radiation due to nuclear fusion processes which mostly occur in its core.
What two kinds of energy changes can take place during a chemical reaction?
Two types of energy changes that can occur in a chemical reaction are (1) endothermic and (2) exothermic. Endothermic is where energy is added to the system and exothermic is where energy is given off by the system.
