Question 1:
Which of the following is an example of kinetic energy?
Explanation: The correct answer is C) A moving car. Kinetic energy is the energy possessed by an object due to its motion. In this case, the moving car has kinetic energy because it is in motion.
Question 2:
Which of the following is an example of potential energy?
Explanation: The correct answer is C) A stretched bowstring. Potential energy is the energy possessed by an object due to its position or condition. In this case, the stretched bowstring has potential energy because it is in a stretched or deformed state, ready to do work when released.
Question 3:
Which of the following statements is true about kinetic energy?
Explanation: The correct answer is C) It is the energy of motion. Kinetic energy is specifically associated with the motion of an object. It depends on the object's mass and velocity, rather than its height.
Question 4:
Which of the following factors affect the kinetic energy of an object?
Explanation: The correct answer is A) Mass and speed. The kinetic energy of an object depends on its mass and the square of its speed. As the mass or velocity of an object increases, its kinetic energy increases.
Question 5:
Which of the following is an example of potential energy?
Explanation: The correct answer is C) A vibrating guitar string. Potential energy is the energy associated with an object's position or condition. In this case, the vibrating guitar string has potential energy because it is stretched and can release sound energy when plucked.