Describe the energy transformation that occurs as a force acts on a mass at point A and causes it move to point B.

A boy is trying to walk his dog West. However, the dog resists the force applied by the boy and instead moves East. Which of the following best describes the forces in this situation?

An airplane flies in a straight line between two cities that are separated by 840 kilometers. If it takes 4 hours for the airplane to take the trip, what is its average speed?

A student is organizing a room. She moves a box from the floor to a shelf. She wants to estimate the amount of potential energy the box has on the shelf. What information does she need?

When does an object that is thrown up in motion have the least kinetic energy?

Where does one look on a graph to find when an object has the greatest average speed

How can simple machines makes work easier?

Which simple machine increases the distance over which a load travels in order to reduce the needed force?

Which simple machines are used to form a wheelbarrow?

Which simple machine would be the most efficient for lifting an object 30 m off the ground?

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