Energy
A moving car has what type of energy?
Kinetic energy
When one type of energy changes to another type of energy
What is the definition of gravity
Any two objects with mass are pulled towards each other
What is an orbit?
The circular path an object takes around another object
Name one star
The sun
A regular gas engine uses what type of energy?
Chemical energy! Gasoline
What is the main energy transfer happening in an electric lamp
from electrical energy to light energy
What is the gravitational strength on earth?
10 Newtons per Kilogram
What does the moon orbit?
The earth
What are stars made out of?
Gas, mostly hydrogen
What are the two types of potential energy?
Gravitational potential and elastic potential
A car rolls down a hill, what is the energy transfer
Potential to kinetic
What is the difference between mass and weight?
Mass is all the matter in an object and weight is the gravitational force on the object
What does the earth orbit?
The sun
Where are stars formed?
Nebula
How many types of energy have we studied?
7 types of energy
What kind of energy transfer happens in a battery powered flashlight
Chemical to light
What two things affect the strength of gravity
The mass objects have and the distance between them
How many days does it take the earth to orbit the sun?
365
True or false, the earth is bigger then the sun
False. the sun is much bigger then earth
What is the law of conservation?
Energy can not be destroyed or created. It can only transfer from one state to the other
A car uses ______ energy for its engine. The engine produces ______ energy, ______ energy and _____ energy
A car uses chemical energy for its engigne. The engine produces kinetic energy, thermal energy and sound energy
What is the mass of on object that has a weight of 5 newtons on earth?
0.5 kilograms
What does the sun orbit?
A super massive black hole in the center of the milky way
Describe the formation of a star
Gas and dust in nebula gets closer because of gravity. The more dust and gas gets close the more its gravity will be. At one point a big ball of gass will be compressed to form a star