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WorksheetsFission, Fusion, Half-Life, Radioactive Decay
Total questions: 15
Worksheet time: 9mins
Which nuclear equation represents a fusion reaction?
A
B
C
D
The half-life of Uranium-235 is 700 million years. If there are 1000 g of Uranium-235 in the original sample, what happens after 2100 million years have passed? Select the TWO that apply.
One half-life has passed
Three half-lives has passed
Two half lives has passed
125g of original sample remains
500 of original sample remains
Which statement best describes this type of reaction and the overall energy change that occurs?
The reaction is FISSION, and the thermal energy is absorbed into the nucleus
The reaction is FUSION, and the thermal energy is released from the nucleus
The reaction is FUSION, and the thermal energy is absorbed into the nucleus
The reaction is FISSION, and the thermal energy is released from the nucleus
If these Lego blocks in the image represent the subatomic particles in a fission reaction, how would the parts be labeled? (Note that the arrow below represents the arrow in the image!)
A: Neutron, B: Uranium-235 -------> C: Krypton-92, D: Barium-141, E: Three Neutrons
A: Neutron, B: Barium-141 -------> C: Krypton-92, D: Uranium-235, E: Three Neutrons
A: Neutron, B: Krypton-92 -------> C: Uranium-235, D: Barium-141, E: Three Neutrons
A: Neutron, B: Helium-4 -------> C: Hydrogen-1, D: Hydrogen-2, E: Three Neutrons
Plutonium-239 is a radioactive isotope commonly used as fuel in nuclear reactors. The half-life of Plutonium-239 is 24,100 years. About how long would it take 504 grams of Plutonium-239 to decay until there were only 63 grams Plutonium-239 left?
96,400 years
24,100 years
72,300 years
48,200 years
Which term below correctly identifies the process shown in the equation?
beta decay
gamma decay
nuclear fusion
alpha decay
Describe what is happening in this image.
A small nucleus combines with a larger one and splits, creating two larger atoms via fusion.
A large nucleus absorbs a neutron and splits, resulting in smaller atoms via fission.
A large nucleus absorbs a neutron and splits, resulting in smaller atoms via fusion.
A small nucleus combines with a larger one and splits, creating two larger atoms via fission.
The table shows the decay of a sample of Vanadium-49 after three half lives.
How many grams of Vanadium-49 did the sample begin with before it decayed?
44 g
352 g
176 g
990 g
What is the biggest disadvantage of using nuclear power to produce electricity?
Nuclear fission produces less energy than burning coal or oil.
Nuclear waste is radioactive and must be safely stored for many years.
Nuclear waste must be incinerated (burned).
Nuclear fission releases more air pollution than burning coal.
Which is an advantage of using nuclear energy as a power source?
The waste products created by a nuclear reaction are safe and reusable.
There are additional nutrients provided to plant life from the nuclear waste.
The power plants are very cheap and easy to build and security is not a concern.
Zero air pollution energy can be produced 24-hours a day without regard to the sun and wind.
On March 11, 2011, a major earthquake and tsunami in Japan disabled three nuclear reactors at the Fukushima power plant. As a result of the accident, radioactive Cesium-134 and Cesium-137 were released into the waters of the Pacific Ocean as shown in these pictures.
Radioactive materials that accidentally escape the reactor can travel long distances and affect the environment.
Nuclear power plants are always too dangerous to operate and should be shut down.
Accidents at nuclear plants have increased over the past decade.
Nuclear power pollutes the air with CO2 and other greenhouse gases.
Calculate the length of the half-life and the number of half-lives that have occurred, then enter the correct number into the text boxes. (Use ONLY the number, not days, etc.)
After 21 days, 15 milligrams of an original 120 milligram sample remain. The half-life of the sample is ____
days and the number of half-lives that have occurred is____?
(a)
Study the table below and then use this information to place the elements(name or symbol) below in order from the fastest rate of decay at the top, to the slowest rate of decay at the bottom.
(a)
Choose the statement below that correctly describes the image seen here.
These are both Sulfur isotopes called Sulfur-8 and Sulfur-10
These are both Sulfur isotopes called Sulfur-16 and Sulfur-18
These are both Oxygen isotopes called Oxygen-16 and Oxygen-18
These are both Oxygen isotopes called Oxygen-8 and Oxygen-10
Choose the correct combination of protons, neutrons and electrons that are represented by this isotope notation:
6 protons, 8 neutrons, 6 electrons
20 protons, 6 neutrons, 20 electrons
6 protons, 14 neutrons, 6 electrons
14 protons, 6 neutrons, 14 electrons
