Energy Types
The energy of motion
Kinetic Energy
Variables that should be held constant through an experiment
Controlled Variables
A skateboarder dropping into a half pipe
Potential to Kinetic
True or False: You should always include units in your data tables
True
PE = mgh
Stored energy based on position
Potential Energy
The variable that you are changing / manipulating
Independent Variable
Eating a sandwich before your run
Chemical to Mechanical / Kinetic
The format your hypothesis should be written in
If...then...because...
Formula for Kinetic Energy
KE = 1/2mv2
Nuclear Energy
The variable that you are measuring
Dependent Variable
Plugging in a hot plate to heat your food
Electrical to Thermal
Name 3 essential components of a good graph.
Title, axis titles, units, data points, legend, evenly spaced scales
Units of mass for KE and PE
kg
Energy that is transferred by electromagnetic radiation
Radiant Energy
Identify the independent variable:
How does age affect hair loss?
Age
Filling your car with gas before you start driving
Chemical to Mechanical / Kinetic
Write a research question if you wanted to investigate the relationship between sunlight and plant growth.
Ex. How does the amount of sunlight affect how tall a sunflower will grow over a week?
Constant for gravity
9.8 m/s2
Energy possessed by an object due to its movement or its position
Mechanical Energy
Identify at least 2 controlled variables:
Does ice cream consumption affect drowning deaths at local beaches?
Swimming ability, age, gender, beach location, ocean conditions, etc.
The sun providing light for photosynthesis to occur
Radiant (Light) to Chemical
Complete the missing scientific method steps:
Observation, _______, _______, Experimentation, Analysis, ________.
Research question, hypothesis, conclusion
Calculate KE if m = 5 kg and v =2 m/s
KE = 10 Joules