Types of Energy
The energy that moving objects have.
What is kinetic energy?
When a light bulb turns electricity into light, this has occurred.
What is an energy transformation?
Energy an object has due to its movement.
What is kinetic energy?
Materials that allow heat or electricity to pass through easily are called this.
What are conductors?
A scientific guess or prediction made before an experiment is called this.
What is a hypothesis?
Energy in an electrical circuit.
What is electrical energy?
When you rub your hands together, chemical energy in your muscles changes to this type of energy.
What is heat energy?
A book sitting on a shelf has this kind of energy.
What is potential energy?
Wood and plastic are examples of these, which do not conduct heat well.
What are insulators?
This type of variable is the one you change in an experiment.
What is the independent variable?
This type of energy comes from the Sun. (Multiple options)
What is light energy / heat energy.
A toaster heats bread by changing electrical energy into this form.
What is heat energy?
One factor affecting the amount of kinetic energy an object has.
What is speed?
Why do metal pans heat up quickly on a stove?
What is because metal is a good conductor of heat?
This is the variable you measure in an experiment.
Dependent
This is energy due to the position or height of an object.
What is gravitational potential energy?
Identify the energy transformations in a roller coaster going down a hill.
What is potential energy turning into kinetic energy?
One factor affecting the amount of gravitational potential energy an object has.
This is built into the walls of a house to keep you warm.
Insulation
These variables are kept the same in an experiment.
Controlled variables.
Energy stored in the bonds between atoms in food or fuel is called this.
What is chemical energy?
Explain the energy transformation in a wind-up torch.
What is stored elastic potential energy turning into electrical energy, then into light energy?
Explain why a stretched rubber band has potential energy.
What is because energy is stored in the stretched elastic material?
Explain why wearing insulated gloves protects your hands when handling hot objects.
What is because the gloves reduce heat transfer by conduction to your skin?
Explain why you need to control variables in an experiment.
To make sure the experiment is a fair test. (You need to be sure that only ONE thing is affecting your results)