In an experiment the variable we measure is called what?
Dependent Variable
In an experiment the variable we change is called what?
Independent Variable
In an experiment the variables we keep constant are called what?
Controlled Variables
What type of energy is produced by the vibrations of particles or waves?
Sound
What is the purpose of the air hole on a Bunsen burner?
To switch between the safety & working flames
At which point is the carts kinetic energy the highest?
3
How should you turn off a Bunsen burner after use?
Close the air holes & then turn off the gas
What should you do if you spill a chemical on your skin in the laboratory?
Wash it off with soap immediately
What law states the following "Energy cannot be created or destroyed"
The law of conservation of energy
Why did the cart not go past point 5?
Because that would require more energy that it started with
What is potential energy?
Stored energy
At which point is the carts potential energy the highest?
1
What should you do if glassware breaks i the laboratory?
Tell the teacher
What is the energy flow diagram for a working radio?
Electrical Energy --> Sound Energy
Why is it important to tie back long hair and remove loose clothing in the laboratory?
To prevent accidences and injuries
What equipment should you use to measure a liquid
Measuring Cylinder
What type of energy is stored in chemical bonds?
Chemical Energy
What type of energy is associated with electromagnetic radiation?
Light
What is the energy flow diagram for a camp fire
Chemical Potential Energy --> Thermal Energy --> Light Energy
What is the energy flow diagram for a person shooting a bow and arrow
Chemical Potential Energy --> Elastic Potential Energy --> Mechanical Motion (Kinetic)
What is kinetic energy?
Energy motion
What is the primary source of thermal energy on Earth?
Solar Energy (Sun)
How is thermal energy transferred between objects?
Conduction, Convection, Radiation