Vocabulary
The ability to do work is called what?
energy
Give two examples of light energy.
A lightbulb and the sun.
The kind of circuit that allows electricity to easily move through.
Closed Circuit
Is this true: can energy transform, or change, from one form into another. If it is true, can you give an example.
Yes, energy can change from one form to another. For example, light energy can be captured by solar panels and transformed into electric energy to power a home, car, and many other things.
What energy source supplies energy to turn the blades of a wind turbine?
Energy of motion is called what?
kinetic
What two types of energy is produced from the sun?
Thermal energy & Light Energy
How can we generate electricity without using fossil fuels?
solar power, wind turbines, hydropower,
BATTERIES
If a battery works because of chemical reactions inside the battery and eventually it stops working, what could we say about the battery?
A. Chemical reactions don't always produce electricity
B. After time, all the chemicals in the battery are used up
C. Batteries will produce less electric current at some temperatures
D. Older batteries always produce MORE electricity than newer ones.
B. After time, all the chemicals in the battery are used up
Describe how energy moves through a wind turbine to the powerline and eventually into a home.
Stored energy is called what?
potential
What type of energy is demonstrated when watching a movie?
Light energy and sound energy
Objects that allow electricity to easily travel through them.
Conductors
How do crank flashlights work? What type of energy powers the flashlight?
Crank flashlights are powered by humans turning the handle. The energy used is mechanical energy because there is both potential and kinetic energy.
When powering on a toaster, electrical energy is transformed into what type of energy?
Heat
A push or a pull is called what?
force
What type of energy is seen when a solar oven is used to melt chocolate and marshmallows?
Thermal Energy
Objects that DO NOT allow electricity to easily travel through them.
Insulators
What might be important to notice about a ramp in an experiment where you are rolling bowling balls down the ramp?
The strength of the ramp
When energy moves from one object to another it is called energy _____________.
Transfer
What happens when two objects collide or bump into each other, causing an exchange or transformation of energy?
collision
What type of energy is often transformed into other types of energy in our homes?
Example: transformed to heat in a toaster, transformed to light in a lamp, transformed to sound on a radio.
Electrical energy
Part of a circuit that can be used to open or close the circuit
switch
Name a nonrenewable resource.
Fossil Fuels (Petroleum, Uranium, Natural Gas, Coal)
When energy is changed to another form of energy it is called energy ______________.
Transformation