Semester 2 Final

The sum of kinetic and potential energy is called...

• sum energy

• nonmechanical energy

• mechanical energy

• space energy

The total amount of energy

• varies

• can cancel out to zero

• goes out into space

• remains constant

work is done when

• the object you apply a force on moves

• any force is applied to an object, regardless if it moves or not

• the force is zero

• the force and direction of motion are perpendicular

Which form of energy is involved in a pencil falling from a desk?

• kinetic

• nonmechanical

• gravitational potential

• elastic potential

An object in motion

• potential energy

• elastic potential energy

• nonmechanical energy

• kinetic enerty

Energy stored due to the interactions between objects

• potential

• positional

• total

• kinetic

What is the rate at which energy is converted?

• potential energy

• kinetic energy

• mechanical energy

• power

The ability to do work is called

• energy

• force

• power

• machine

What is the unit of report for energy?

• Joules

• meters

• newtons

• grams

If the mystery machine moves 100 meters how much work is done?

• 130,000,000 J

• 70,000 J

• 100,000 J

• 30,000 J