laws

Question 1

1st law of thermodynamics

Answer 1

energy cannot be created or destroyed

Question 2

2nd law of thermodynamics

Answer 2

heat is transferred from one body to another body
only if the two bodies are at different temperatures,
the heat flows from the body at the highest temperature to the body at the lowest temperature

Question 3

3rd law of thermodynamics

Answer 3

the entropy of a system approaches a constant value as the temperature approaches absolute zero

Question 4

newtons first law

Answer 4

an object will not change its motion unless a force acts on it

Question 5

newtons 2nd law

Answer 5

the force on an object is = to its mass x its acceleration

Question 6

newtons 3rd law

Answer 6

when two objects interact, they apply forces to each other of equal magnitude and opposite direction

Question 7

coulombs law

Answer 7

the closer two charges are the stronger the force between them

Question 8

ohms law

Answer 8

the voltage across a conductor is directly proportional to the current flowing through it, provided all physical conditions, such as temperature, remain constant.

Question 9

voltage formula

Answer 9

voltage = curret x resistace

Question 10

hookes law

Answer 10

the extension of a spring is directly proportional to the force applied to the spring:

force = spring constant x extension