Unit 4 Physical Science

In T-ball, batters hit a ball that is placed on a T-shaped stand. Batter A hits the ball by swinging the bat from a resting position on his shoulder. Batter B hits the ball with the bat directly behind it. Which batter will likely hit the ball the greater distance?

• Batter A will likely hit the ball farther because batter A’s bat likely has a greater acceleration when it hits the ball, so the bat will hit the ball with a greater force

• Batter B will likely hit the ball farther because batter B’s bat likely has a greater acceleration when it hits the ball, so the bat will hit the ball with a greater force.

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NGSS.HS-PS2-1

The diagram shows a nuclear reaction.

Which type of reaction is shown in the diagram?

• fusion, because the reaction released energy

• fission, because the reaction absorbed energy

• fusion, because the reaction formed heavier nuclei

• fission, because the reaction formed lighter nuclei

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NGSS.HS-PS1-8

The table shows the decay in a 420-gram sample of seaborgium-266 over time.

How many grams of seaborgium-266 will be left after 90 seconds?

• A. 26.3

• B. 52.5

• C. 78.8

• D. 105.0

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NGSS.HS-PS1-8

Which term is usually used to discuss how quickly an element undergoes radioactive decay?

• half-life

• light-year

• frequency

• wavelength

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NGSS.HS-PS1-8

The graph shows the radioactive decay of a bone that is found to contain 1/8 of the carbon-14 found in living animals today.

Approximately how old is the bone?

• A. 5,730 years

• B. 11,460 years

• C. 17,190 years

• D. 22,920 years

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NGSS.HS-PS1-8

How many grams of cobalt-60 will remain after three half-lives?

• 1.25 g

• 2.50 g

• 30 g

• 180 g

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NGSS.HS-PS1-8

Compared to the energy released per gram during a typical chemical reaction, which of the following best describes the amount of energy released per gram during the decay of a radioisotope?

• It is less.

• It is about the same.

• It is a little more.

• It is much greater.

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NGSS.HS-PS1-8

Which of the following best describes an alpha particle

• A negatively charged particle, consisting of a neutron, that is emitted from an atom undergoing radioactive decay.

• A positively charged particle, consisting of two protons and two neutrons, that is emitted from an atom undergoing radioactive decay.

• An atom that results from the radioactive decay of another atom.

• Radioactive energy, not matter, that is emitted during radioactive decay

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NGSS.HS-PS1-8

When an unstable nucleus decays, it emits matter and energy. This process is called.....

• Transmutation

• Radioactivity

• Daughter Isotope

• Parent Isotope

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NGSS.HS-PS1-8

In which type of reaction do two lighter nuclei combine to form one heavier nucleus?

• nuclear fission

• nuclear fusion

• combustion

• reduction

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NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

NGSS.HS-PS1-8