Part 3 Science Final

What is the transfer of energy that occurs when a force is applied?

• watts

• joules

• work

• unit

Why are studying and doing homework not considered work?

• They are not difficult enough to be considered work.

• A force that does not make the object move does not constitute as work.

This is the formula used to calculate work:

• W = F x D

• D + F = W

• W - D = F

• W - F = D

This is the unit used to express work:

• heat

• joules

• watts

• length

This is the SI unit for work and energy:

• Elevation-meter

• Newton-meter

• Work-meter

• Energy-meter

These are the 2 things that the work done on an object depends on:

• The object moves; The object moves in the same direction as the force.

• The object moves; The object moves in the opposite direction as the force.

• The object remains at rest; The object lays on its side.

• The object remains at rest; The object stands upright.

How is it possible to calculate work done on an object when the force is at an angle?

• only the vertical part of the force is used in the work equation; the horizontal does no work

• only the horizontal part of the force is used in the work equation; the vertical does no work

Which is an example of how lifting an object is considered work?

• thinking about words that rhyme with lifting

• lifting a backpack

Doing work on an object ____ energy to the object.

• drains

• removes

• transfers

Doing work on an object transfers energy to the ____.

• top

• object

• bottom