Physical Science Final Spring 25

Front

What is a metal?

Back

A metal is a substance that is typically a good conductor of heat and electricity, malleable, ductile, and has a shiny appearance.

Front

What is a nonmetal?

Back

A nonmetal is a substance that generally lacks the properties of metals, often being poor conductors of heat and electricity, and can be gases, liquids, or brittle solids at room temperature.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What is the formula to calculate weight?

Back

Weight (W) = mass (m) × acceleration due to gravity (g).

Front

What is the acceleration due to gravity on Earth?

Back

The acceleration due to gravity on Earth is approximately 9.8 m/s².

Front

What are alkali metals?

Back

Alkali metals are elements found in Group 1 of the periodic table, known for being highly reactive and having one electron in their outermost shell.

Front

What is the significance of Group 18 in the periodic table?

Back

Group 18 contains noble gases, which are known for their lack of reactivity due to having a full valence shell of electrons.

Front

What is a metalloid?

Back

A metalloid is an element that has properties of both metals and nonmetals, often used in semiconductors.

Front

How do you calculate the weight of a 52-kilogram object on Earth?

Back

Weight = 52 kg × 9.8 m/s² = 510 newtons.

Front

What are the properties of metals?

Back

Metals are typically shiny, malleable, ductile, good conductors of heat and electricity, and have high melting and boiling points.