Thermal Energy
Which of the following best defines thermal energy?
What is Thermal energy is the energy contained within a system responsible for its temperature.
What makes a collision an elastic collision?
What is objects remain independent after a collision.
What role does water's high specific heat capacity play in the human body?
What is High specific heat allows water to absorb heat while resisting rapid temperature fluctuations.
What does the word Heat refer to?
What is thermal energy being transferred from a hotter system to a cooler one.
How does thermal energy from the Sun reach the surface of the Earth?
What is Radiation travels through electromagnetic waves, even across the vacuum of space.
What two things are conserved in an elastic collision?
What is kinetic energy and momentum.
Why are cooking utensil handles typically made of high specific heat materials?
What is Materials with high specific heat act as insulators and heat up slowly.
What does convection only happen in?
What is gasses and liquids.
Why does a house lose more heat through a large window than a small window of the same thickness and material?
What is Larger surface area allows more heat to be transferred.
What makes a collision an inelastic collision?
What is the objects stick together and have one mass.
Provide a definition for energy transfer.
What is the rate at which thermal energy is transferred.
What is an example of convection?
What is boiling water, a fan in an oven...
Convection can occur in which of the following states of matter?
What is Convection relies on fluid movement (liquids and gases).
During an inelastic car crash, kinetic energy is lost. Which of the following forms does that lost kinetic energy take?
What is sound energy, heat energy, and deformation of materials.
Specific heat capacity measures the amount of heat energy needed to raise the temperature of 1 kg of a substance by:
What is Specific heat capacity is defined as the heat required to raise 1 kg of matter by 1∘C
In radiation, do objects have to touch to get hot?
What is no.
Thermal energy transfer continues until which condition is met?
What is Thermal transfer stops once two substances reach thermal equilibrium at the same temperature.
Why are collisions between gas atoms in an ideal gas approximated as elastic, even though real-world atomic collisions are slightly inelastic?
What is elastic approximatino simplifies analysis and produces accurate predictions, while real-world factors like heat and sound dissipate only tiny amounts of energy.
When a metal spoon in boiling water becomes hot at the end not touching the water, which process has occurred?
What is Conduction occurs when thermal energy moves between neighboring molecules in direct contact.
What is a definition of conduction.
What is transferred between neighboring molecules that are in contact with one another.