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Valiant Vocabulary Real World Luscious Leftovers 10 Point 20 Points 30 Points 40 Points 50 Points 10 Point 20 Points 30 Points 40 Points 50 Points 30 Points 40 Points 50 Points Gears R Us Working Hard or Hardly Working ?
The formula to calculate work
What is force x distance?
Which inclined plane will require less force? Short and steep or long and low
What is long and low?
Simple machines are useful because they let us do the same amount of work with less…
What is effort?
These two things must happen for work to be accomplished
What is force must be applied and the object must move a distance
Which will take less effort to move the same distance? A VW Beetle with large tires or a VW Beetle with small tires?
What is a VW Beetle with large tires?
What is force must be applied and object must move a distance? What is a VW Beetle with large tires?
A unit of measuring force
What is a Newton?
A force exerted by the object you are trying to move
What is resistance?
The amount of friction between two surfaces that allows one surface to travel across another
What is traction?
A measure of how fast an object is moving
What is speed?
The advantage created by a machine that enables people to do work while using less force
What is mechanical advantage?
Provide an example of where you would find gears
Clock, car, watch etc.
The gear receiving the force is called
What is the driven gear?
In a gear system, effort is applied to the _____, causing the other gear to turn
What is the driving gear?
When one gear turns another, force is _______
What is transferred?
Daily Double The affect a rusty chain would have on a bicycle gear and a temporary fix without replacing it would be
What is friction and a lubricant?
Provide an example of a simple machine at home
What is a simple machine at home?
A kite string spool is an example of what simple machine?
What is a wheel and axle?
In which example is work being done? Three students pushing on their teacher, but he/she is not moving? or Their teacher picking up a pencil?
What is their teacher picking up a pencil?
Provide an example of a lever
What is ‘a lever’?
Give five categories of simple machines
What is: Wheel and axle Pulley Inclined plane Screw Lever Gear Wedge
Where you should put the fulcrum in order to lift an object with the least amount of effort
What is close to the load?
This is reduced by moving an object on wheels instead of dragging it
What is friction?
Besides wheels, this can be used to reduce friction
What are oils, lubricants, wax, soft pads…
This is why more accidents happen in rain and snow
What is there is less friction or oily surfaces?
If you could be one simple machine, which one would you be and why?
What is “I would be a ___ because ___.”
Make your wager
The seven categories of simple machines in alphabetical order
What is: gear, inclined plane, lever, pulley, screw, wedge, wheel and axle