Question 1:

Which of the following formulas represents the work done on an object?

Explanation: The formula for work done on an object is given by W = Fd, where F represents the applied force and d represents the displacement of the object in the direction of the force.

Question 2:

Which of the following is a unit of measurement for energy?

Explanation: The unit of measurement for energy is the Joule (J). It is equivalent to the work done by a force of one Newton over a distance of one meter.

Question 3:

Which of the following statements about power is true?

Explanation: Power is defined as the rate at which work is done or the rate at which energy is transferred or transformed. It is measured in Watts (W).

Question 4:

Which of the following forms of energy is associated with motion?

Explanation: Kinetic energy is associated with the motion of an object. It depends on the mass of the object and its velocity. The formula for kinetic energy is KE = 0.5mv^2, where m represents the mass and v represents the velocity of the object.

Question 5:

Which of the following scenarios involves the most work done on an object?

Explanation: The work done on an object is calculated by multiplying the applied force by the displacement in the direction of the force. Since work is directly proportional to both force and displacement, the scenario involving the most work done would be lifting the heaviest object by the greatest distance. Therefore, option B) lifting a 5 kg object by 5 meters involves the most work.