Energy Transfer
100: What is the term for the flow of thermal energy from a warmer object to a cooler object?
Answer: What is heat?
100: What type of energy is transformed into thermal energy when pavement absorbs sunlight?
Answer: What is electromagnetic energy?
100: What is the energy transferred through electromagnetic waves called?
Answer: What is radiation?
Answer: What is conduction is transfer through direct contact, and convection is transfer through fluid movement?
Answer: What is thermal energy is absorbed?
100: How does increasing temperature affect the reaction rate?
Answer: What is it increases the reaction rate?
200: What happens to the energy when metal parts cool down?
Answer: What is energy is transferred to the surrounding environment?
200: What is one example of an endothermic reaction?
Answer: What is the reaction of baking soda and vinegar?
200: What is the process by which thermal energy is transferred through liquids and gases?
Answer: What is convection?
200: Why do the contents of an ice chest stay cold even in warm air?
Answer: What is the ice chest slows thermal energy flow from the environment?
200: What is the role of a catalyst in a chemical reaction?
Answer: What is it increases the rate of reaction without being consumed?
300: In an automobile engine, what are the inputs of the system?
Answer: What are gasoline and air?
300: What is released during an exothermic reaction?
Answer: What is thermal energy (heat) ?
300: What happens to the motion of particles in an object when it warms up?
Answer: What is the particles move faster?
300: What is the process called when thermal energy is transferred between particles?
Answer: What is conduction?
300: What factor can affect how fast energy is transformed in a reaction?
Answer: What is the type of chemical process?
400: What do the arrows in the thermal energy flow diagram represent?
Answer: What is the direction of energy transfer?
400: Name a factor that can increase the rate of a chemical reaction.
Answer: What is increasing the concentration of reactants, increasing the surface area, increasing the temperature, the presence of a catalyst.
400: How does heat transfer happen in a vacuum?
Answer: What is through radiation only?
400: Why do objects in space not cool as quickly as expected?
Answer: What is there is no matter to transfer thermal energy through conduction or convection?
400: What happens to thermal energy during a faster reaction rate?
Answer: What is the rate at which energy is transformed increases, but the total amount of energy remains the same?
500: Explain how thermal energy is transferred through conduction.
Answer: What is thermal energy transfer through direct contact between particles?
500: What is the chemical process that is directly related to the kinetic energy of the reaction rate?
Answer : Changing the temperature of the reaction is related to the the kinetic energy
500: Explain the difference between conduction and convection.
Answer: What is conduction is transfer through direct contact, and convection is transfer through fluid movement?
500: What type of energy transformation occurs when wood burns?
Answer: What is the transformation of chemical energy into thermal energy?
500: Describe how the concentration of reactants affects reaction rates.
Answer: What is higher concentration increases the frequency of particle collisions, leading to a faster reaction?