Potential Energy
What is potential energy
Stored energy
What is kinetic energy
What is energy transformation
energy changes from one type to another within an object or substance
energy moves from one object or substance to another and the energy is the same type
Identify the 3 variables in an investigation
Independant, dependant and controlled
What type of potential energy does a ball have when someone is holding it
gravitational potential energy
What type of kinetic energy does a soccer ball have when it's being kicked
movement/mechanical energy
What types of energy can be transforming from the following description (hint: use an arrow to represent the energy transformation)
Wooden logs on fire
Chemical--->Heat or Light or Sound
What type of energy transfer is occurring in the following description (hint: use an arrow to represent energy transfer)
People sitting around a fire
Heat--->Heat
What needs to be included in a hypothesis
What are the 4 types of potential energy
Gravitational
Elastic
Nuclear
Chemical
What are the 5 types of Kinetic energy
Mechanical/movement
Electrical
Light
Thermal/heat
Sound
Draw the energy transfermation of a light bulb (hint: there should be two arrows coming from 1 source of energy)
electrical----> heat and light
what type of energy is being transferred when you're bowling
mechanical/movement
What are 3 things you need to include in a graph
Title, X-axis, Y-axis, Even scale, Scale starting at 0, Correct plotting, units included, spacing correct (if bar graph)
Identify the 2 factors gravitational potential energy depends on
Position and Mass
identify how electrical energy moves
electrons flow from object to object or through substances
Driving a car is an example of energy transformation in chemical to mechanical energy. However this is not the only energy transfer. What are 2 other forms of wasted energy
Heat and Sound
What do the arrows represent in energy transfer and transformation
the amount of energy and type of energy within an object
How can you increase the reliability of an experiment
multiple trials, repeat experiment, use more accurate experiment
Can we see chemical energy? why/why not
No, it can only be seen once its released as kinetic energy
Define sound energy
The movement of energy through invisible waves.
what is energy transformation in the human body (hint: use an arrow to show the transformation)
Chemical-->heat
the law of conservation of energy states
energy can not be created or destroyed
List 4 things you can include when writing about trends
The highest result
The lowest result
The difference between results
The average results of trials (where there are multiple trials)