8th Grade Science Fall Semester Exam Review

Front

What law is best described by inertia?

Back

1st Law of Motion: An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

Waves dropping sand on the beach is an example of what?

Back

Deposition: The process by which sediment is laid down in new locations.

Front

Which of the following BEST describes the change in energy that occurs as a roller coaster travels from position X to position Y?

Back

Kinetic energy decreases while potential energy increases.

Front

The resistance of an object to any change in its motion is called ______________________.

Back

Inertia: The tendency of an object to resist changes in its state of motion.

Front

Which season is taking place in the Northern Hemisphere in Position 4?

Back

Fall: The season characterized by cooler temperatures and the shedding of leaves from deciduous trees.

Front

What is the definition of kinetic energy?

Back

Kinetic Energy: The energy an object possesses due to its motion.

Front

What is the definition of potential energy?

Back

Potential Energy: The stored energy of an object due to its position or state.

Front

What is erosion?

Back

Erosion: The process by which soil and rock are removed from the Earth's surface by natural processes such as wind or water.

Front

What is the difference between weathering and erosion?

Back

Weathering is the breaking down of rocks and minerals, while erosion is the movement of those materials from one location to another.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.