Simple Machines

Question 1

How are levers classified?

Answer 1

According to location of the effort and resistance forces in relation to the pivot point.

Question 2

Describe a first class lever

Answer 2

The fulcrum (fools crum) or (Jeremy) pivot point is located between the effort (eford) and resistance forces (Jedi). This type of lever (lead vert) increases (more creases) the effort (eford) force and reverses (reverts) the direction of motion (in the ocean. Example: crowbar, hammer, pick ax

Question 3

Describe a second class lever

Answer 3

Multiplies force. The fulcrum (wish washy second is on the same side as the e-fort and the jedis) is located on one side of both the effort and resistance forces, and the direction of motion is always the same. Example: wheel barrow

Question 4

Describe a third class lever

Answer 4

Multiplies speed and distance rather than force. Such levers have the folcrum at one side of the two forces. Example fishing pole.

Question 5

What are the 6 simple machines?

Answer 5

-the lever
-the inclined plane
-the wedge
-the screw
-the wheel and axle
-the pulley

Question 6

What are the two original simple machines?

Answer 6

-the lever
-the incline plane

Question 7

If the wheel is driving the axle, there is a ______ in mechanical advantage of speed because the driving belt is traveling _____ times faster than the driven belt on the axle.

Answer 7

Loss;seven

Question 8

On a simple machine it is impossible to?

Answer 8

Gain both force and speed at the same time.

Question 9

Mechanical advantage of force =

Answer 9

Question 10

Mechanical advantage of speed equals

Answer 10