m
This is m____________ energy.
Electrical energy is caused by __________ charges (electrons)
negative
How does light travel?
in waves
Thermal energy is also known as _______ energy.
heat
sound energy travels in _____?
waves
___________ is the energy from an object's position
potential
Why is electricity considered energy?
electrons are moving and it allows us to do work
Name three sources of light.
sun, stars, lightbulb, fire, etc.
Heat flows from a ____ object to a ____ object?
warm to cold
What is it called when objects (like guitar strings) move back and forth quickly?
vibrations
___________energy is when it is actually moving
kinetic
What is static electricity?
when electrons "jump" from one object to another (touching a doorknob ; lightning)
wavelengths
particles/molecules
How are sound waves like the ripple of water if you throw a rock in a lake?
when something vibrates, it shakes the molecules around it and it continues like a chain reaction
Give an example of potential energy that turns to kinetic energy
bow and arrow, rubber band, etc.
What is electric current?
When electricity actually flows from one object to another
How can light transform into another type of energy?
pan, oven mitt
Why can't sound travel through space?
there is no medium
What is one way mechanical energy can be transferred?
dominoes, hitting a baseball, etc.
What is one was electric energy can be tranformed to another kind of energy?
glass/air, wall/door
Why does an ice sculpture have more energy than a match?
It has more particles ; it is made of more matter
vibrations cause molecules to move