Physical Science Chapter 8 Review - Nuclear Changes | Baamboozle - Baamboozle

Compare nuclear fission & fusion.

Fisson/fusion both nuclear reactions. Fission- splitting 2 or more smaller nuclei. Fusion- releases more energy than fission does.

Oops!

Check

Okay!

Check

Name a manmade source of radiation. Provide 2 examples.

nuclear medicine, medical procedures, electronic devices, food irradiation devices.

Oops!

Check

Okay!

Check

eraser

Reset score!

Oops!

shark

Other team loses 5 points!

Okay!

fairy

Take points!

lifesaver

Give 20 points!

Oops!

What does it mean for fissionable material to have subcritical mass?

Not enough mass/mass is too spread out to maintain a chain reaction. The neutrons that are produced escape before they can start other reactions.

Oops!

Check

Okay!

Check

banana

Go to last place!

Oops!

star

Double points!

Okay!

shark

Other team loses 25 points!

Okay!

banana

Go to last place!

Oops!

banana

Go to last place!

Oops!

star

Double points!

Okay!

rocket

Go to first place!

Okay!

lifesaver

Give 10 points!

Oops!

Why were scientists surprised that they produced barium after crashing a neutron into a uranium atom?

They were trying to form heavier-than-uranium elements, and barium is significantly lighter.

Oops!

Check

Okay!

Check

What is a physical change?

Alter the appearance of a substance without changing its chemical composition.

Oops!

Check

Okay!

Check

What is a chain reaction?

Typically neutrons, from one reaction can start additional reactions.

Oops!

Check

Okay!

Check

How do alpha and beta decay differ from artificial transmutations?

Both occur spontaneously, while artificial transmutations are manmade.

Oops!

Check

Okay!

Check

How does CT technology differ from x-rays?

CT combines multiple x-ray images into a cross-sectional image of the body.

Oops!

Check

Okay!

Check

Can we predict when a single atom of a radioactive isotope will decay? Explain.

No. Radioactive decay- random process-spontaneously. Half-life give the time of half of a sample to decay, doesn't allow us to predict future of decay event.

Oops!

Check

Okay!

Check

Which type of radioactive decay does not result in a new element?

Gamma decay causes a change in energy in the nucleus. It doesn't changes its composition.

Oops!

Check

Okay!

Check

What happens to an atom during radioactive decay?

Spontaneously emits particles, energy, or both from its nucleus in order to become more stable

Oops!

Check

Okay!

Check

What is a chemical change?

Alter the composition of compounds by breaking and forming chemical bonds to rearrange atoms into new substances.

Oops!

Check

Okay!

Check

Explain why nuclear reactions don't violate the law of conservation of matter.

During nuclear process, mass is converted into energy, not lost. E=mc2 tells us that energy & mass are equivalent; isn't destroyed, only transformed new form

Oops!

Check

Okay!

Check

Restart Join for Free

Your experience on this site will be improved by allowing cookies.