a) the ability to do work or produce heat
b) something that makes your brain work
c) an organic reaction that eliminates two hydrogen atoms
d) a pure substance that cannot be broken down
2. Kinetic energy is energy of motion.
True
False
3. Chemical potential energy is ______?
a) representes by the symbol q
b) energy stored in a substance because of its composition
c) one calorie
d) the number and type of chemical bonds in a reaction
4. Calorie is abreviated as what?
a) C
b) q
c) cal
d) SI
5. A joule is equivalent to how many calories?
a) 5.662 calories
b) 0.2390 calories
c) 4.184 calories
d) 1000 calories
6. Specific heat is ______?
a) the amount of heat required to raise the temperature of one gram of a substance by
one degree Celsius
b)the amount of heat absorbed or released
c) the total amount of a substance used
d) the same as a joule
7. The equation used to express the relationship between heat, specific heat, mass, and
change in temperature is ____?
a) p = c x m x change in T
b) q = c x w x change in T
c) q = c x s x change in T
d) q = c x m x change in T
8. Photovoltaic cells are not commonly used because _____?
a) they do not work
b) the cost is too high
c) they damage the ozone
d) they break easily
9. A calorie is the amoount of heat required to raise hte temperature os one gram of pure
water by one degree Celsius.
True
False
10. The law of conservation of energy states that in a chemical of physical reaction ___?
a) energy cannot be converted from one form to another
b) energy can be destroyed but not created
c) energy is neither created nor destroyed
d) energy can be created but not destroyed