physics

Question 1

1st law of conversation

Answer 1

ENERGY IS NOT CREATED OR DESTROYED,
IT IS ONLY TRANSFORMED FROM ONE
TYPE OF ENERGY TO ANOTHER

applies to Ep = Ek

Question 2

2nd law conversation

Answer 2

WHENEVER ENERGY IS TRANSFORMED
FROM ONE FORM TO ANOTHER SOME OF
THE ENERGY IS LOST

Question 3

when a ball is thrown up in the air, where would mechanical, kinetic and potential go?

Answer 3

when the ball is in the hand it has 100% kinetic however has it gets thrown up it gradually becomes potential energy , yet as it reaches the certain high, it turns into potential energy at the top, and then when it slowly drops, the potential slowly turns into kinetic again.

*mechanical stays the same

Question 4

scalar

Answer 4

scalar quantity has a
magnitude only

Question 5

vector

Answer 5

vector quantity has a
magnitude AND a direction

Question 6

uniform motion

Answer 6

• equal distance over equal time
• distance remains constant with time

Question 7

non-uniform motion

Answer 7

• distance is not equal to time
• increasing or decreasing NOT CONSTANT

Question 8

steam engine

Answer 8

MACHINE THAT CONVERTS STEAM ENERGY (PRESSURE) TO MECHANICAL ENERGY

Question 9

hero

Answer 9

observed that we can control and direct steam to create mechanical energy

Question 10

thomas savery

Answer 10

sucked water out of mines

Question 11

thomas newcome

Answer 11

IF THE STEAM IS COOLED THE ATMOSPHERE CAN CREATE PRESSURE)
A PISTON THAT STEAM MOVES UP, AND THE ATMOSPHERE PUSHED DOWN

Question 12

james watt

Answer 12

THE ADDITION OF A VALVE ROD ALLOWED THE STEAM TO ENTER ON EITHER SIDE OF THE
PISTON, LETTING THE STEAM PUSH THE PISTON BOTH DIRECTIONS

Question 13

thermodynamics 1st law

Answer 13

energy can neither be created nor destroyed, only altered in form

Question 14

thermodynamics 2nd law

Answer 14

No process can be 100% efficient. Some
energy will always be wasted in the form
of heat, light, or sound