December Review #7

Front

What is mass?

Back

Mass is the amount of matter in an object, usually measured in grams or kilograms.

Front

What is the difference between solids, liquids, and gases?

Back

Solids have a definite shape and volume, liquids have a definite volume but take the shape of their container, and gases have neither a definite shape nor volume.

Front

What is mechanical energy?

Back

Mechanical energy is the energy associated with the motion and position of an object.

Front

What is a producer in an ecosystem?

Back

A producer is an organism that can make its own food, typically through photosynthesis, like plants.

Front

What is a consumer in an ecosystem?

Back

A consumer is an organism that eats other organisms for energy, such as animals.

Front

What is electrical energy?

Back

Electrical energy is the energy caused by the movement of electrons.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

Front

What is an example of a physical change?

Back

Liquid water turning into solid ice is an example of a physical change.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter, related to the movement of particles.

Front

What is the law of conservation of energy?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.