Experimental Design
Forms of Energy
Energy Transformations
Thermal Energy
KE, PE, and ME
100
Can be answered by designing and conducting an experiment.
Testable Question
100
Type of energy caused by vibration of particles within substances.
Thermal Energy
100
Energy can be transformed from one form into another or transferred from one region to another, but energy cannot be created or destroyed.
Abbreviations OK!
LoCoE
(Law of Conservation of Energy)
100
Transfer of heat energy between two objects that are touching.
Conduction
100
Gravitational Potential Energy depends on two things besides gravity- what are they?
Abbreviations OK!
PE=mgh
m=mass
h=height
200
The variable changed by the experimenter.
Independent Variable
200
Type of energy that holds the nucleus of an atom together.
Nuclear Energy
200
What is the missing energy type?
CE-->___+KE+TE
Chemical-->____+ Kinetic+ Thermal
SE/ Sound Energy
200
An example of this type of heat transfer is heating water in a tea kettle.
Convection
200
Why does Point B have more gravitational potential energy than Point C?
It has more height.
300
The variable that is measured in an experiment.
Dependent variable.
300
Two forms of KINETIC energy.
Abbreviations OK!
Sound
Thermal
Electrical
Radiant
300
Which type of energy is missing?
____-->ME
____--> Mechanical Energy
CE/ Chemical Energy
300
Example of RADIATION heat transfer.
Answers vary-
campfire, steam, warmth from sunlight
300
Kinetic energy depends on mass and ______ .
-->VELOCITY/ SPEED
KE=1/2 mv2
m= mass
v= velocity
400
What is the independent variable in this experiment?
IV= Amount of water
400
Two forms of POTENTIAL energy.
Abbreviations OK!
Chemical
Elastic
Gravitational
Nuclear
400
Many energy transformations involve one form of energy being transformed at least partially into ______ energy.
Heat/ Thermal Energy
Friction, Many electrical appliances, cars, boats
400
Thermal Energy is transferred from:
A. Colder to Hotter
B. Hotter to Colder
B- Hotter to Colder
400
What is the Kinetic Energy of a 150 kg object that is moving with a velocity of 15 m/s? Don't forget the unit!
KE=16875J
500
List 2 possible constants in this experiment.
Answers may vary:
# seeds in each pot
same type of seeds
same type of pot
same type of water
same type of soil
same amount of soil
500
Energy is the ability to do ______ .
work
500
Draw the energy transformation.
CE-->EE+RE+TE
500
What type of material blocks the transfer of heat?
Insulator- plastic, wood, air, warm clothes
500
A kid going down a waterslide has PE=1500J at the top of the slide. His KE right at the bottom is 1450J. Where is the other 50J of energy?
Transformed into other forms of energy like friction/ thermal energy.