Forms of Energy
What type of energy does a kite stuck in a tree have?
Potential energy
At what point on a rollercoaster does the cart have the most potential energy?
Highest point/ top of hill/ point A
This is a renewable energy resource that uses thermal energy from within the Earth.
Geothermal energy
the movement of thermal energy from a hot to cold area
Heat
What is the equation for work & what is the unit for work?
w= F x d
Joule (J)
A ball thrown in the air has what type of energy?
mechanical energy
At what point on a rollercoaster does the cart have the most kinetic energy?
bottom of hill/ spot where it is going the fastest/ POINT C
a renewable energy resource that uses potential energy of elevated water.
hydroelectric energy
What is the difference between thermal expansion & thermal contraction?
expansion- temp increases & the volume increases
contraction- temp decreases & the volume decreases
Give a definition AND an example of freezing, condensation, and deposition
freezing- Liquid turns into a solid. Ex: water turning into ice
condensation- Gas turns into a liquid. Ex: dew on the grass
deposition- Gas turns directly into a solid. Ex: frost forms on the window
What type of energy does a space heater use?
thermal energy
When does the roller coaster start to slow down?
going up the second hill. C --> D
this energy resource uses photovoltaic cells to produce electric energy?
solar energy
List the where the three heat transfers occur in a boiling pot of water
radiation- feel the heat coming off the side of the pot/ burner
convection- the boiling water inside the pot
If I push a box to the right, which way does the box need to move in order for work to be done?
mechanical energy
Name three energy transformations that occur in a rollercoaster.
Potential --> Kinetic --> Thermal
Potential --> Mechanical --> Thermal
uses chemical energy stored millions of years ago within the cells of living organisms.
fossil fuels
List the three parts of the kinetic molecular theory
- all matter is made of particles
- particles are constant, random motion
- particles collide with each other & the walls of their containers
Give a definition AND an example of melting, vaporization, and sublimation.
melting- Solid turns into a Liquid. Ex: ice cream drips
vaporization- Liquid turns into a gas. Ex: Boiling water/ puddle disappears on a hot day
sublimation- Solid turns directly into a gas. Ex: Dry Ice
A microwave uses what type of energy?
Radiant Energy
What happens to the total energy of the roller coaster as it goes through the track?
IT STAYS THE SAME
nonrenewable energy resource that uses potential energy stored within atoms.
Nuclear energy
List & DESCRIBE the three ways heat transfers
conduction- heat transfer through collisions between particles
radiation- heat transfer through electromagnetic waves
convection- heat transfer through the movement of particles from one part of a material to another
What two factors effect gravitational potential energy? EXPLAIN IT
Mass- the more mass the more GPE
Distance/ Height- the more height the more GPE