Energy

Question 1

Gravitational field

Answer 1

Are region of space for an object experiences a force because of its mass

Question 2

Gravity

Answer 2

Force of attraction at bodies have for each other because of the mass

Question 3

Gravitational potential energy

Answer 3

Ep
Energy and object has by virtue of its position and that gravitational field gravitational potential energy is the energy of an object because of its position in a gravitational field relative to a reference point

Question 4

Gravitational potential energy formula

Answer 4

Ep =mgh

Gravitational potential energy equals mass times nine, eight times height above reference point

Measured in Joules is the scaler quantity and the amount of energy transferred when one Newton of force acts on an object for 1 m

Question 5

Potential energy

Answer 5

Energy and object has by virtue of its position state or shape it is stored energy it takes many forms such as chemical electrical and radiated

Question 6

Kinetic energy

Answer 6

Ek

The energy than object has as a result of its motion

Question 7

Kinetic energy formula

Answer 7

Ek = 1/2 m(v)square
Kinetic energy is equal to half mass times magnitude of the velocity squared
It is measured in Joules

Question 8

Law of conservation of charge

Answer 8

Energy is never created or destroyed but can really be transferred from one form to another

Question 9

Mechanical energy

Answer 9

Em
The sun of the car needed energy and gravitational potential energy of an object it remains constant because they transfers between kinetic and gravitational potential energy

Question 10

mechanical energy formula

Answer 10

Em=Ek +Ep
Em =1/2 m(v)square +mgh
Ek1+Ep1=Ek2+Ep2
It is measured in Joules

Question 11

Principle of conservation of mechanical energy

Answer 11

In the absence of air resistance and friction mechanical energy of an object moving in its gravitational field is constant
Ek1+Ep1=Ek2+Ep2