CH2

Question 1

ENERGY

Answer 1

ability to do work

ex: energy come from and enables us to do work

Question 2

POTENTIAL ENERGY

Answer 2

the energy stored for use at a later time

ex: chemical bonds in gasoline, coal , or food

Question 3

KINETIC ENERGY

Answer 3

energy of matter in motion

ex: swimming, working out, anything burning

Question 4

HEAT or THERMAL ENERGY

Answer 4

associated with the motion of particles.

ex: adding heat to food increase the motion of the particles, which makes the food hot

Question 5

HEAT MEASUREMENTS

Answer 5

measure in joules or calories
\: 4.184 joules (J)= 1cal 
\: 4.184 J/ 1cal and 1cal/4.184 J
\:1kJ= 1000J
\:1kilocalorie(kcal)=1000cal