Energy
(Transfer, PE, KE, ME
(Transfer, PE, KE, ME
What is the formula for Mechanical Energy?
ME=PE+KE
Which law of newtons does it talk about conservation of momentum and collision?
Newton´s 3rd law
What causes motion?
Forces
Hoe many Newtons Laws are there?
3
What is the resistance to motion of one object moving?
Friction
If the object KE is 500kj and the PE is 1,500, what is the ME?
500+1,500=2,000
What are the 2 types of collisions?
Inelastic and Elastic
What is the formula for motion?
M=F/A
What law is an object stays at rest will stay at rest?
Newtons First Law
What forces are generated by 2 serfaces that contacts and slides against eachother?
Frictinal Forces
What are the 3 types of energy?
Mechanical, Potential, Kenetic Energy
If 2 objects collided, what would be conserved?
Momentum
List one way motion can be characterized.
1. location of motion
2. distance of motion
What is Newtons 3rd law?
every action in nature there is and equal opposite reaction.
What can be described as a push or pullon an object?
Force
What is the strength and vitality required for sustained physical or mental activity?
Energy
When 2 objects collied the total momentum before the collision is equal to what?
The total momentum after the collision.
Is velocity a scalor or a vector?
Vector
What formula do you use in Newtons 2nd law?
F=MA
How many Forces are there?
4
Energy is defined as the ability to do?
Work
How do you know if momentum is conserved?
As long as no external forces are acting on the objects involved, the total momentum stays the same in explosions and collisions.
What is the Fromula for acceleration?
a = Δv/Δt.
Newton's laws of motion are three laws that describe....
the relationship between the motion of an object and the forces acting on it.
How can forces be described?
a push or pull on an object