Review of 2nd Quarter PS 2024 Part 1

Front

Negatively charged particles emitted from a nucleus at a high speed are ____.

Back

Beta particles are negatively charged particles emitted from a nucleus during radioactive decay.

Front

A helium nucleus with two protons and two neutrons is called a(n) ____.

Back

An alpha particle is a type of nuclear particle consisting of two protons and two neutrons.

Front

What type of change occurs when ice cream melts?

Back

Melting ice cream is a physical change, as it alters the state of matter without changing its chemical composition.

Front

Complete the equation: 181_73Ta --> ____ + 181_74W

Back

The missing particle is a beta particle, represented as 0_-1e.

Front

How would you read this triple beam balance? (Image of balance showing 43 g)

Back

The reading on the triple beam balance is 43 g.

Front

What is the definition of an alpha particle?

Back

An alpha particle is a positively charged particle made up of two protons and two neutrons, emitted during radioactive decay.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form or appearance of a substance without changing its chemical composition, while a chemical change results in the formation of new substances.

Front

What are gamma rays?

Back

Gamma rays are high-energy electromagnetic radiation emitted from a nucleus during radioactive decay.

Front

What is the significance of beta decay?

Back

Beta decay is a type of radioactive decay where a beta particle is emitted, transforming a neutron into a proton and increasing the atomic number of the element.

Front

What is the role of a triple beam balance?

Back

A triple beam balance is used to measure the mass of an object with high precision.