Matter
These are the 3 possible physical states of matter
What are solid, liquid, or gas?
This is the type of energy that needs to be added or removed for a state change to occur
What is thermal energy?
This is the force that resists motion when two objects slide past one another -
What is friction?
These are the two forms that energy exists in
What are kinetic and potential?
The name given to this type of variable comes from its description - the variables in an experiment that remain the same
What are control variables?
A measure of the amount of space an object takes up
What is volume?
These two changes occur when a liquid becomes a gas and requires energy to increase, and when a gas becomes a liquid and requires energy to decrease
What is condensation & evaporation?
This happens to the amount of movement as friction is increased
What is go down or decrease?
This form of energy increases as the height increases
What is potential energy?
In order to measure elapsed time, one might use this scientific instrument to collect their data
What is a stopwatch?
The physical state of a substance in which volume and shape are fixed
What is solid?
These two changes occur when a solid becomes a liquid and requires energy to increase, and when a liquid becomes a solid and requires energy to decrease
What is melting & freezing?
Motion is described by an object's -
Direction and speed
Give an example and description of an object on the playground that shows a transfer of potential and kinetic energy
Answers will vary. Mr. Webster will judge if an answer is valid or not.
What is the amount of time a student slept?
The atoms of an object do this as you increase the amount of thermal energy
What is speed up and/or spread apart?
Three identical bikes were ridden by the same student for one mile each. The three surfaces the student rode on were grass, a sidewalk, and mud. This surface most likely was the one with the fastest time
What is sidewalk?
This type of energy is the combination of kinetic and potential energy together in a system
What is mechanical energy?
This type of chart/graph is vital for tracking changes in a substance over an extended period of time
What is line graph?
This is one thing that stays constant whenever a phase change takes place
What is the mass or amount of matter?
Drawing: Come to the board and draw a diagram that shows all the forces acting on an object.
Mr. Webster will judge the drawings
This law states that energy cannot be created nor destroyed - it can only be transformed or transferred
What is the law of conservation of energy?
This is the amount of independent, dependent, and control variables you can have in an experiment?
Hint: They are not all the same number
Independent: 1
Dependent: 1
Control: As many as needed/necessary