Fall Semester Exam - Grade 7

Front

What is the main difference between thermal energy and temperature?

Back

Temperature is a measure of the average kinetic energy of particles, while thermal energy is the total energy of all particles.

Front

Where is potential energy at its minimum on a roller coaster?

Back

At point X.

Front

What is the major difference between static electricity and current electricity?

Back

Current electricity involves a flow of electrons; static electricity involves a single transfer of electrons.

Front

Describe the direction of heat flow when iced tea is cooling after adding ice.

Back

Heat flows from the tea to the ice.

Front

What does the law of conservation of energy state?

Back

It states that energy can be neither created nor destroyed, but it can be transformed.

Front

What is thermal energy?

Back

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

Front

What is temperature measured in?

Back

Temperature is measured in degrees Celsius or Fahrenheit.

Front

What happens to thermal energy when ice is added to hot tea?

Back

Thermal energy flows from the hot tea to the ice, cooling the tea.

Front

What is static electricity?

Back

Static electricity is the buildup of electric charge on the surface of objects.

Front

What is current electricity?

Back

Current electricity is the flow of electric charge (electrons) through a conductor.