Earth-Sun-Moon
Approximately how much days does the moon take to orbit Earth?
28-29
What force is responsible for Earth's tides?
Gravity
In a bus where is chemical energy being stored?
Fuel or battery
In what three ways can thermal energy be transferred?
Conduction, convection, and radiation
What is the difference between an atom and a molecule?
Atom is just one particle of an element from the periodic table, where as a molecule is more than one atom combined. A molecule can be made of the same element or different elements.
What is the result of Earth's rotation?
the sun rising and setting
What two factors effect gravitational attraction?
Distance and mass
What type of energy does a skier on top of a hill store?
gravitational potential energy
What method of thermal energy transfer does the sun use to warm up the Earth?
Radiation
As a solution is heated what will happen to the particles?
They will move faster, they will gain energy.
Why do different parts of Earth receive different amounts of sunlight each day?
Earth's axis is tilted
How do you calculate the force of gravitational attraction between two objects?
Multiply there masses together
When an object is at rest, it has ___________ energy, when an object is moving, it has ____________ energy.
potential, kinetic
rise, sink
When a liquid gains energy it becomes what?
A gas
Describe a total lunar eclipse
Occurs when Earth's shadow blocks the sun's light from reaching a full moon
One object has a mass of 5 another objects has a mass of 3.
What is the force of gravitational attraction between the two objects?
15 units
What kind of energy transformation takes place when an iron is plugged in?
When the iron is plugged in electrical energy will be transformed into thermal energy.
Does thermal energy travel from the hotter object to the colder object, or colder object to the hotter object?
hotter to colder
What atoms would we find in a water molecule?
H2O
2 hydrogen
1 oxygen
Describe a partial solar eclipse.
When the new moon blocks part (not all) of the sun.
Assume the force of gravitational attraction between two objects is 18 units.
What will the force of gravitational attraction between the objects be if the mass of each object doubles and the distance between the two objects doubles?
18 units
What is the difference between an energy transfer and an energy transformation?
Energy transfer: energy goes from one object to another object. ex: soccer player kicking a ball
Energy transformation: energy changes from one type of energy to another type of energy
When two objects reach the same temperature they have reached what?
Thermal Equilibrium
Put the following in order from least energy to most energy. Liquid, Gas, Solid
solid, liquid, gas