What is the formula for work?

- W = F x d
- W = F x N
- W = M x d
- none of these

Work is measured in?

- Newtons
- Meters
- Jewels
- Joules

According to the formula for work, Force is measure in?

- Gravity
- Newtons
- Joules
- Jewels

According to the formula for work, distance is measure in?

- centimeter
- meter
- feet
- kilometers

What must happen in order work to be done on an object?

- the object must move
- the object has force
- the object must move in the same direction as the the direction of the force
- none of the above

Why did the Egyptians use simple machines

- to make the work easier
- because it was considered a treat for the gods
- Simple Machines were created after the the building of the pyramids
- None of the above

The work you apply to a simple machines is usually called the _____ ?

- effort force
- resistance force
- either a + b
- military force

What is the relationship of the "ideal mechanical advantage" to the "actual mechanical advantage" ?

- The IMA is always less then the AMA.
- The IMA is alway more then the AMA.
- The IMA always equals the AMA.
- They are directly proportional.

Why is the Ideal Mechanical Advantage always less then the Actual Mechanical Advantage.

- There is no difference
- Some energy is lost as heat or friction.
- It involves the distance of the force.
- none of the above

What is the center point of a lever called?

- Faiyam
- Center Point
- Fulcrum
- Fossil

What does the law of levers tell us?

- that the forces of both sides of the lever are equal
- that the distances of both sides of the lever are equal
- that the work of both sides of the lever are equal
- There is no such law

How do you calculate the MA of a lever?

- lenght of the efforct arm multiplied by the length of the resistance arm
- lenght of the efforct arm divided by the length of the resistance arm
- lenght of the efforct arm subtracted by the length of the resistance arm
- lenght of the efforct arm discounted by the length of the resistance arm

If the resistance arm of a lever has a resistance force of 20 N and the arm is 1 meter long, how long would the effort arm have to be if you wanted to only apply a force of 5 N ?

- .6 m
- 4 m
- 6 m
- 10 m

If the resistance arm of a lever has a resistance force of 10 N and the arm is .5 meter long, how long would the effort arm have to be if you wanted to only apply a force of 5 N ?

- 1m
- 10 m
- .1 m
- 2 m

How do you calculate the MA of an inclined plane?

- length of the incline divided by the height
- length of the incline subtracted by the height
- length of the height divided by the incline
- length of the height subtracted by the incline

Assuming it takes 500 J to lift a piano 1 meter off the ground, it would take a force of 500 N to lift that piano. If you used a 2 meter long ramp who much force would be required.

- 200 N
- 250 J
- 500 J
- 250 N

In the last question, when you use a ramp then ....

- the work and force remain the same.
- the force is more then the work
- the work is less then the force
- you use less force to get the same amount of work done.