Energy Unit Test Review

Kinetic/Potential Energy

100

What is kinetic energy?

The energy of an object in motion.

200

What is potential energy?

The energy of an object at rest.

300

What are the 3 types of potential energy? (Must correctly name all 3 for any points.)

Gravitational, Elastic, and Chemical

400

What does the Law of Conservation of Energy state?

Energy cannot be created or destroyed. It can be changed from one form to another.

500

Name at least 3 types of energy we learned about other than kinetic and the types of potential energy.

Sound Energy, Nuclear Energy, Mechanical Energy, Radiant Energy, Thermal Energy, Electrical Energy

Formulas

100

What is the formula for kinetic energy?

KE = 1/2mv²

200

What is the potential energy formula?

PE = mgh

300

What is the gravity rate that is always in the Potential Energy formula?

9.8 m/s²

400

What is the formula for mechanical energy?

ME = KE + PE

500

A bicycle has a mass of 20 kg. It is traveling at 3 m/s. Using the formula KE = 1/2mv², what is the Kinetic Energy of the bicycle?

90 J

Thermal Energy

100

What are the three types of thermal energy transfer? (Must correctly name all 3 to receive points.)

Radiation, Convection, and Conduction.

200

How is temperature measured? Name the tool and the unit of measurement.

Thermometer and degrees

300

What is heat?

Transfer of energy from an object at a higher heat to an object at a lower heat.

400

What is the difference between thermal energy and temperature?

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

500

How does the movement of particles affect temperature?

Temperature is the average kinetic energy of particles in a substance. Particles increase in movement when a substance becomes hotter. As the movement of particles increases, so does the increase in kinetic energy. As kinetic energy increases, so does the temperature.

Alternative Energy

100

What is a non-renewable energy source?

A source of energy that CANNOT be easily replaced by nature at the rate its being used. 

200

What is renewable energy?

An energy source that can be easily replaced or reproduced by nature.

300

Name at least 2 of the 3 fossil fuels we learned about.

Coal, Natural Gas, Petroleum

400

Name at least 4 of the 6 alternative energy sources we learned about.

Solar, Wind, Hydroelectric, Geothermal, Biomass, Nuclear

500

How do fossil fuels form?

Fossil fuels form over millions of the years from the remains of ancient plants and animals, underneath layers of sediment.

Mix

100

Name two examples of conduction.

(Answers will vary.)

200

Name 3 of the 4 concepts that we measure in JOULES.

Kinetic Energy, Potential Energy, Mechanical Energy, Thermal Energy

300

What is the difference between a conductor and an insulator?

A conductor transmits energy very well while an insulator does not.

400

What is the pattern of movement in convection?

Hot water/air rises and cold air/water sinks.

500

What is the unit of measurement for heat?

Calories