Worksheets4th 9 Weeks Exam Review 21-22
Total questions: 10
Worksheet time: 5mins
What law allows calories to be determined by heat transfer from one substance to another?
boyle's law
charles' law
law of conservation of energy
law of multiple proprotions
Average kinetic energy is how we measure _______________.
heat energy
nuclear energy
potential energy
temperature
In the diagram above, which of these are true? (select two)
endothermic
exothermic
absorbs energy
releases energy
In calorimetry, energy is measured through heat transfer from one substance to another. Which of the
following is NOT a method of heat transfer?
conduction
refraction
convection
radiation
In a chemical reaction the temperature of the water drops very fast. Is this exothermic or endothermic? also, is the sign of q positive or negative
exo, positive
exo, negative
endo, negative
endo, positive
A 16.0 g sample of iron was heated from 0°C to 35.0°C. It absorbed 246.4 J of energy as heat.
What is the specific heat (Cp) of this piece of iron?
1.37
3.67
240
0.44
What amount of heat energy (Q) would be necessary to raise the temperature of 100 g of water at room
temperature (25°C) to the boiling point (100°C)? The specific heat of water is 1.0 cal/g°C. (1000 J = 1 KJ)
7.5
750
100
75
Particle having the least penetrating power and also positively charged, refers to which radioactive particle?
beta
gamma
alpha
neutrino
Nuclear power plants use fission reactions to produce electric power. Nuclear fusion is NOT yet a
practical energy source because it —
requires a lot of hydrogen
requires extremely high temperatures
does NOT produce enough energy
CANNOT be sustained as a chain reaction
Which of the following is a correct statement about nuclear fusion and nuclear fission?
fission gives off radiation, while fusion does not
fusion gives off radiation and fission does not
both give off radiation
neither give off radiation
