8th Grade MidTerm Review 2004

Front

What is the balanced equation that represents a reaction involving 6 atoms of nitrogen?

Back

3N₂ + 2O₂ → 2N₃O₂

Front

What happens to the kinetic and potential energy of a skier increasing speed while skiing downhill?

Back

Kinetic energy increases. Potential energy decreases.

Front

What is the main reason the plants next to the window grew taller than those in the closet?

Back

The plants next to the window were able to convert more light energy into chemical energy.

Front

In which location on a roller coaster is the potential energy greater than the kinetic energy?

Back

Location X.

Front

How many different elements are in sodium bicarbonate (NaHCO₃)?

Back

4.

Front

What is kinetic energy?

Back

The energy an object possesses due to its motion.

Front

What is potential energy?

Back

The energy stored in an object due to its position or state.

Front

What is the formula for sodium bicarbonate?

Back

NaHCO₃.

Front

What is the role of light energy in plant growth?

Back

Light energy is converted into chemical energy through photosynthesis.

Front

What is the difference between kinetic and potential energy?

Back

Kinetic energy is energy of motion; potential energy is stored energy based on position.