Newtons laws
What is the first law?
Newton's first law states that every object will remain at rest
What it kinetic energy?
energy of motion
Potential energy is the energy an object has due to its ________.
Position
What are 5 energies?
thermal energy, radiant energy, chemical energy, nuclear energy, electrical energy,motion energy, sound energy, elastic energy and gravitational energy.
what type of energy is produced and wasted during most energy transformations?
thermal
Give an example of the 1st law!
Someone pushing someone else
give an example of kinetic energy
anything moving
What is the standard unit of measurement for potential energy?
Newton
how do energies help people?
they help people do things
You notice after you walk across a room, you feel a spark when you touch the doorknob. What energy transformation must have taken place?
Mechanical -> electrical
what is the 2nd law?
Newton's second law of motion pertains to the behavior of objects for which all existing forces are not balanced.
Kinetic energy is the energy an object has due to its ________.
motion
Where does a car on a hill have the most potential energy?
on the top of the hill
what are 5 energies that human have?
chemical,mechanical,thermal,kinetic,potential
What energy transformation takes place when something burns?
Chemical -> thermal
What is Newtons 3rd law?
Newton's third law is: For every action, there is an equal and opposite reaction.
Kinetic energy can be calculated from what two measurements?
Velocity and mass
Gravitational potential energy is the potential energy of an object based on its __________.
height and mass
give an example of a sport that uses energies.
any of the sports because they all use energy
In what state is chemical energy always in?
Potential
What are all of the laws?
1st law- Inertia
2nd law - acceleration
3rd law- action-reaction
What is the standard unit of measurement for kinetic energy?
newton
What is the gravitational potential energy of a 1 kg ball that is 2 meters above the floor?
19.6 J
why is energy important?
energy is important because it does a lot of things for people
When a turbine rotates to produce electricity, what energy transformation takes place?
Mechanical -> electrical