Holmes - Ch 6 Unit Test Review

Front

What does the law of conservation of energy state?

Back

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

Front

What type of simple machine is a human arm considered to be?

Back

A human arm is considered a lever.

Front

What type of energy increases as an object is raised to a higher position?

Back

Potential energy increases as an object is raised to a higher position.

Front

What is a system in scientific terms?

Back

A system is a group of objects, effects, and variables that are related.

Front

Which simple machine is NOT included in the diagram if it shows a pulley, wheel and axle, and inclined plane?

Back

Lever is NOT included in the diagram.

Front

What is the definition of kinetic energy?

Back

Kinetic energy is the energy of an object in motion.

Front

How is potential energy calculated?

Back

Potential energy is calculated using the formula PE = mgh, where m is mass, g is the acceleration due to gravity, and h is height.

Front

What are the two main types of energy?

Back

The two main types of energy are kinetic energy and potential energy.

Front

What is an example of a lever in everyday life?

Back

A seesaw is an example of a lever in everyday life.

Front

What is the relationship between height and potential energy?

Back

As height increases, potential energy increases.