Forces, Densities, and Gravitational Attraction

Front

What is a force?

Back

A force is a push or pull that can change the motion of an object.

Front

What is gravitational attraction?

Back

Gravitational attraction is the force that pulls two objects toward each other, depending on their masses and the distance between them.

Front

What is density?

Back

Density is the mass of an object divided by its volume, often expressed in grams per cubic centimeter (g/cm³).

Front

What happens to daylight hours during summer in the Northern Hemisphere?

Back

There are more daylight hours than nighttime hours.

Front

What is elastic potential energy?

Back

Elastic potential energy is the energy stored in an object when it is stretched or compressed.

Front

What is the difference between a metal and a nonmetal?

Back

Metals are typically shiny, good conductors of heat and electricity, and malleable, while nonmetals are usually dull, poor conductors, and brittle.

Front

What is a metalloid?

Back

A metalloid is an element that has properties of both metals and nonmetals.

Front

How does the Earth's position affect the seasons?

Back

The tilt of the Earth's axis and its position in orbit around the sun determine the seasons.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion, calculated as 1/2 mv², where m is mass and v is velocity.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state.