Question 1: Which of the following is an example of kinetic energy?

Answer: A moving car

Question 2: True or False: Energy can be created or destroyed.

Answer: False

Question 3: What is the primary energy transformation in a hydroelectric power station?

Answer: Potential energy to electrical energy

Question 4: Match the following terms to their definitions:

Answer: See full answer key

Question 5: Define 'conservation of energy'.

Answer: The principle that energy cannot be created or destroyed, only transformed.

Question 6: True or False: Thermal energy can be transferred through radiation, conduction, and convection.

Answer: True

Question 7: Explain how energy is transferred in a pendulum swing.

Answer: Energy is transferred between potential energy at the highest point and kinetic energy at the lowest point.

Question 8: Calculate the kinetic energy of a 2 kg object moving at a velocity of 3 m/s. (Use the formula KE = 0.5 * m * v^2)

Answer: 9 Joules

Question 9: Fill in the blank: The unit of energy in the International System of Units is the ______.

Answer: Joule

Question 10: Describe the energy transformations that occur in a coal-fired power plant.

Answer: In a coal-fired power plant, chemical energy in coal is converted to thermal energy through combustion. The thermal energy is used to produce steam, which drives turbines, converting thermal energy to mechanical energy. The mechanical energy is then transformed into electrical energy by a generator.

Question 11: List the steps involved in the energy transfer process in a wind turbine.

Answer: See full answer key

Question 12: Provide a short explanation of how solar panels convert sunlight into electrical energy.

Answer: Solar panels convert sunlight into electrical energy through photovoltaic cells that generate electricity when exposed to sunlight.