Energy cannot be created or destroyed it can only be ______________________.
What is transformed (or transferred or conserved)?
100
The faster the particles are moving the ____________ the temperature.
What is higher (or warmer)?
100
What are the three methods that heat is transferred?
What is conduction, convection, and radiation?
100
Explain the mechanical energy transfer of a roller coaster at the top of a hill and then going down the hill.
What is at the TOP of the hill it will have POTENTIAL and then as it goes down it will eventually lose more and more of its potential and gain more and more KINETIC.
100
Thermal energy is the __________________ of the kinetic energy of the particles in a substance.
What is sum/total?
200
An instrument making noise would be an example of this energy.
What is sound energy?
200
If particles start to slow down they must be experiencing what?
What is colder temperatures/lower temperatures?
200
If you hold an ice cube in your hand the ice cube’s particles will speed up because energy in the form of ________________ is transferred from your body to the ice cube.
What is heat?
200
A toaster uses these TWO types of energy.
What is electrical/electromagnetic and heat/thermal?
200
Name two objects and tell the class which one has more thermal energy and why.
The less thermal energy object should be smaller and “colder” than the object that has more thermal energy (ie: pencil (low) and person (high).
300
The sum of potential and kinetic energy.
What is mechanical energy?
300
You can speed particles up by…
What is increasing the temperature?
OR: What is turning it into a liquid (if solid) or gas (if solid or liquid?
300
If you put a metal spoon into warm soup the spoon will become warm especially because it is a good ________________.
What is conductor?
300
If a TV’s input energy is 200 watts and its output energy is 150 watts. How much energy is transformed into unusable energy (heat energy in this case)?
What is 50 watts (200 watts – 150 watts = 50 watts)?
300
There are two factors that determine thermal energy. What are they? How could you increase the thermal energy of an object?
What is Temperature and the amount of particles (the size of a substance)?
AND
Increase temperature and/or add more particles (by adding size/volume).
400
Light energy is an example of this energy.
What is electrical/electromagnetic energy?
400
When an object is very warm it will have a high amount of __________________ energy.
What is kinetic energy?
400
If you mix 20 degree C water with 40 degree C water, what will the ending temperature be? Why?
What is around 30 degrees C because temperature is the AVERAGE kinetic energy of particles.
400
A car uses _________________ energy when the gasoline is used to make the engine go just as we eat food to make us move.
What is chemical energy?
400
Energy, in the form of heat, is transferred from objects with a __________________ temperature to objects with a _____________________ temperature.
What is WARMER/HIGHER to COLDER/LOWER?
500
This type of energy occurs when the nuclei of atoms are split or combined together.
What is nuclear energy?
500
Particles that are moving _______________ must have a ___________________ temperature and a ___________________ amount of kinetic energy.
What is fast, high, high.
OR What is slow, low, low.
500
Heat can be measured by these TWO units of energy.
What is Joules and Calories?
500
What three or four types of energy are involved with turning on a flashlight?
Step by Step: Turning it on? Battery? It actually turning on? The light bulb being on?
What is Mechanical (humans moving to press the power button) to Chemical (the battery releases chemical energy) to Electrical/Electromagnetic (the process of it turning on) to Light (the purpose of the flashlight)..it may also produce some unusable energy in the form of heat.
500
If two beakers are filled with 40 C water and one beaker is filled with 100mL of water and the other is filled with 200mL of water, which one would have a higher amount of thermal energy? Why?
What is the beaker with 200mL of water because although they are the same temperature the beaker filled with more water will have MORE PARTICLES (larger volume/size).