7th Grade Semester Exam Review

Front

What does the Law of Conservation of Energy state?

Back

Energy CANNOT be created nor destroyed - only converted from one form of energy to another.

Front

What are the inner planets of the Solar System?

Back

Mercury, Venus, Earth, Mars.

Front

How does temperature affect particle movement?

Back

The particles move faster if the temperature is higher.

Front

How does heat transfer between objects?

Back

Heat travels from your hand to the glass of lemonade you are holding.

Front

Which model has greater gravitational attraction?

Back

Model A.

Front

Define thermal energy.

Back

Thermal energy is the total kinetic energy of particles in a substance.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion.

Front

What is gravitational attraction?

Back

Gravitational attraction is the force that pulls two objects toward each other.

Front

What happens to particles in colder temperatures?

Back

Particles move slower in colder temperatures.

Front

What is the difference between potential energy and kinetic energy?

Back

Potential energy is stored energy based on position, while kinetic energy is energy of motion.