Energy
Where does all energy originate from?
What is the sun.
Fill in the blank. When you rub your hands together you convert mechanical energy into _______ energy.
What is heat/thermal energy.
What are the three forms of heat transfer?
What is conduction, convection, and radiant.
Fill in the blank. If particle motion ______, then temperature _______.
What is increases, increases.
Solve the problem using the kinetic energy equation.
m= 3 v=3
What is 13.5 J
Define potential energy.
What is stored energy.
What is electric.
Fill in the blank. _______ is the transfer of heat from one object (solid) to another.
What is thermal energy?
What is a form of energy that moves from higher temperature objects to lower temperature objects through conduction, convection and radiation.
Which form of heat transfer describes the scenario-- Using a heating blanket to get warm.
What is conduction.
Define kinetic energy.
What is energy of motion.
What is chemical.
Fill in the blank. The movement of hot air up to cooler air is _______.
What is convection.
What is temperature?
What is the average kinetic energy of an object.
Which form of heat transfer describes the scenario-- Getting warm by sitting in front of a fire.
What is radiation.
T or F. The formula to calculate kinetic energy is Ek=1/2v x m^2
What is False.
Ek= 1/2m x v^2
If you raise an object above the ground, you give it _____ energy.
What is gravitational potential energy.
Complete the statement. Moving molecules make things (heat up/cool down).
What is heat up.
What is heat?
What is the transfer of thermal energy from a hot object to a less hot (colder) object.
Convert 0 degrees Celsius to Kelvin.
What is 273 K.
The nucleus of an atom is the source of what type of energy?
What is nuclear energy.
The energy carried by waves in the electromagnetic spectrum is called ______ energy.
What is radiant.
T or F. Particles are not needed for the heat flow of radiation.
What is true.
If you have two samples of water and each has a mass of 1 kg. Sample A has a temperature of 90 degrees Celsius and sample B has a temperature of 70 degrees Celsius, what can we assume from the information?
What is the Ek and thermal energy for sample A is greater.
Can an object contain heat?
What is no, heat cannot be stored. It just omves from high to low.