# Lesson Worksheet: Work and Energy Science

In this worksheet, we will practice calculating work with the formula work = force X distance, and relating work done to a transfer of energy.

Q1:

A box is pulled by a rope across a floor. The box slides a distance of 2 meters across the floor. The force on the rope is 18 newtons. Find the work done to move the box. Q2:

Complete the statement correctly by filling in the blanks: When work is done on an object by a force, one category of energy for the object.

• Aonly, decreases
• Bonly, increases
• Cat least, increases
• Dmore than, decreases
• Emore than, increases

Q3:

Which of the following formulas correctly describes the quantity of work done by a force? is the force, is the distance moved, and is the work done by the force.

• A
• B
• C
• D
• E

Q4:

Which of the following is a unit of energy?

• AKilogram
• BJoule
• CDegree Celsius
• DWatt
• ENewton

Q5:

Which of the following correctly describes the quantity of work done by a force?

• AThe force acting on an object multiplied by the time that the force acts for
• BThe force acting on an object multiplied by the distance the object moves

Q6:

A plank of wood rests on a pivot. One end of the plank is pushed a large distance downward by a force and the opposite end of the plank moves a smaller distance upward. How does the amount of force pushing downward on one end of the plank compare to the amount of force pushing the opposite end of the plank upward? • AThe force pushing downward is equal to the force pushing upward.
• BThe force pushing downward is less than the force pushing upward.
• CThe force pushing downward is more than the force pushing upward.

Q7:

A plank of wood rests on a pivot. One end of the plank is pushed a large distance downward by a force and the opposite end of the plank moves a smaller distance upward. How does the amount of work done pushing downward on one end of the plank compare to the amount of work done pushing the opposite end of the plank upward? • AThe work done pushing downward is more than the work done pushing upward.
• BThe work done pushing downward is less than the work done pushing upward.
• CThe work done pushing downward is equal to the work done pushing upward.

Q8:

A blue ball rolls along the floor toward a green ball that is not moving. The blue ball collides with the green ball, and after they collide, both balls move in the direction in which the blue ball was initially moving. Which of the following most correctly describes the energy transfers from the blue ball to the green ball in the collision? • AWork done on blue ball kinetic energy of blue ball kinetic energy of green ball
• BKinetic energy of blue ball kinetic energy of green ball work done on green ball
• CKinetic energy of blue ball work done on green ball kinetic energy of green ball

Q9:

Complete the following sentence: When one category of energy of an object is more than zero, the object can do work by that energy category.

• Aat least, transferring
• Bonly, increasing
• Conly, transferring
• Dat least, increasing
• Emore than, transferring

Q10:

A box is pulled by a rope along a ramp. The gravitational potential energy of the box increases by 5 joules, and its kinetic energy increases by 9 joules. The force only contributes to the kinetic energy and the gravitational potential energy of the box. How much work was done on the box by the force? 