Simple simple machines…
A wheel barrow..
What is Class 2 Lever
The MA of : Class I Lever with an Effort arm of 4m, and a Load arm of 2m…
What is MA=2
This man invented a famous screw to help his community many years ago.
What is Archimedes .
When you rotate a larger gear once it will have rotated the smaller gear many times. These kind of gears are known as...
What are Multiplying Gears.
The part of a lever that pivots!
What is a FULCRUM
When the Effort is between the Load and the Fulcrum.
What is Class 3
What is a pro to using a wedge?
What is increase the pressure you can apply to the object.
60 N of force is used to move a box 5m up a ramp. How much work was done?
What is 300J.
Largest factor that reduces the efficiency of a machine?
What is FRICTION
A Mountain Highway…
What is INCLINED PLANE
If a Gear with 80 teeth turn ONCE, how many times will the gear turn with 20 teeth.
What is 4 TIMES
A belt or chain that is used to transfer energy from an energy source to an object.
What is a Linkage.
What is the difference between a hydraulic system and a pneumatic?
What is one uses fluids the other uses air.
Name two effects of simple machines.
Changing the direction of the force
Multiplying a force
Increasing or decreasing speed
Transferring force
A lever is 35% efficient. What is the work output of the lever when a user does 120 J of work?
What is work output = 42J
What are the 5 key criteria for evaluating a machine?
What is Efficient, Effective, Safe, Convenient and Environmentally Friendly.