Energy
Type of energy made by a machine or an object in motion
Mechanical Energy
What is a closed circuit?
A circuit that allows electricity to flow.
Thermal energy is also known as ______ energy.
heat
A wave is caused by a ____________
vibration
True or False: Sound waves can travel through a vacuum like space.
False
The energy stored in the food that we eat
Chemical Energy
What is an open circuit?
A circuit that does not allow electricity to flow.
The type of heat transferred used to cook food in a stainless steel pan on the stove
Conduction
Waves transfer ________
energy
True or False: Waves transfer matter and energy
False
energy cannot be created or destroyed; it can only change forms
Law of Conservation of Energy
What material is a conductor of electricity?
Metal
Heat transfer in a fluid that cause the hotter particles to rise and cooler particles to sink
Convection
Waves that must have a medium to travel through
Mechanical Waves
The term given for the height of the wave from the line of origin
Amplitude
Potential energy increases as mass and ________ increase
height
Rubber is a good ________ of electricity.
They type of heat transfer from fire
Radiation
Waves that do not need a medium to travel through
Electromagnetic Waves
This is how the heat of the Sun reaches the Earth's atmosphere
Through electromagnetic waves of radiation
This describes the energy transformations that occur in a roller coaster as it climbs and descends the first hill
1.) as it climbs the first hill it gains potential 2.) at the top of the hill it has maximum potential energy 3.) As it descends the hill the potential energy is gradually transformed into kinetic energy 4.) at the bottom of the first hill it has maximum kinetic
A constant flow of electricity through a circuit is called an _____________ ____________.
electrical current
Heat energy moves from the _______ object to the ________ object
Heat energy moves from the WARMER object to the COOLER object
Example of a mechanical wave:
Example of an electromagnetic wave:
Mechanical examples: sound waves, ocean waves, rope, spring
Electromagnetic examples: x-rays, visible light, microwaves, radio, UV light
This is what happens to all of the lights in a parallel circuit if one path has a break in it
Nothing....the other bulbs continue to work