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: Explain what is meant by 'conservation of energy'.

Answer: Energy cannot be created or destroyed; it can only be transferred from one form to another.

Question 4: What is the primary energy transfer when a lamp is switched on?

Answer: Electrical to light

Question 5: Match the following terms to their definitions:

Answer: See full answer key

Question 6: True or false: Thermal energy is a type of potential energy.

Answer: False

Question 7: Calculate the gravitational potential energy of an object with mass 5 kg at a height of 10 meters. Use the formula: GPE = mgh (where g = 9.8 m/s^2).

Answer: 490 J

Question 8: Order the steps of energy transfer in a hydroelectric power station:

Answer: See full answer key

Question 9: Fill in the blank: Energy is transferred when a force is applied over a _____

Answer: distance

Question 10: Describe how energy is transformed in a battery-powered flashlight.

Answer: Chemical energy in the battery is transformed into electrical energy, which then becomes light energy.

Question 11: Discuss the advantages and disadvantages of using solar energy as a renewable energy source compared to fossil fuels.

Answer: Advantages include no greenhouse gas emissions and sustainability. Disadvantages involve high initial costs and dependency on weather conditions.