Quiz: Potential and Kinetic Energy

Which of the following is an example of potential energy in South Africa?

• A. Wind energy
• B. Motion of vehicles
• C. Gravitational potential energy of rocks in the Drakensberg Mountains
• D. Kinetic energy of a cheetah

What is the formula for calculating potential energy?

• A. PE = mass × velocity
• B. PE = ½ × mass × velocity²
• C. PE = mass × gravitational acceleration × height
• D. PE = ½ × mass × height²

Which of the following is an example of kinetic energy in South Africa?

• A. Elastic potential energy of a bungee cord
• B. Gravitational potential energy of rocks in the Drakensberg Mountains
• C. Wind energy
• D. Potential energy of water stored in dams

What is the formula for calculating kinetic energy?

• A. KE = mass × velocity
• B. KE = ½ × mass × velocity²
• C. KE = mass × gravitational acceleration × height
• D. KE = ½ × mass × height²

Which type of energy is involved in a swinging amusement park ride?

• A. Potential energy only
• B. Kinetic energy only
• C. Both potential and kinetic energy
• D. Neither potential nor kinetic energy

Which type of energy is involved in solar water heaters on rooftops in Johannesburg?

• A. Potential energy only
• B. Kinetic energy only
• C. Both potential and kinetic energy
• D. Neither potential nor kinetic energy

Which type of energy is involved in a hydroelectric power station on the Orange River?

• A. Potential energy only
• B. Kinetic energy only
• C. Both potential and kinetic energy
• D. Neither potential nor kinetic energy

Which of the following is an example of a mechanical system?

• A. Solar water heater
• B. Power plant
• C. Wind turbine
• D. Amusement park ride

Which of the following is an example of a thermal system?

• A. Solar water heater
• B. Power plant
• C. Wind turbine
• D. Amusement park ride

Which of the following is an example of an electrical system?

• A. Solar water heater
• B. Power plant
• C. Wind turbine
• D. Amusement park ride