Vocabulary
Applied Science, Science, or Technology?
Simple Machines
Equations
Mechanical Advantage
100
The amount by which force or motion is magnified in a simple machine
What is Mechanical Advantage?
100
A spray that, when sprayed around a campsite, keeps bears away
What is Technology?
100
If you cannot generate enough force to lift a rock with a first-class lever the way you have it set up, you should change the setup so that the fulcrum is this to the rock (closer to or farther from)
What is closer to the rock?
100
This simple machine has a Mechanical advantage = distance from fulcrum to effort ÷ distance from fulcrum to resistance
What is a lever?
100
This is the mechanical advantage of wheel and axle system, if the wheel has a diameter of 20 inches, and the axle has a diameter of 2 inches
What is 10?
(20 ÷ 2)
200
A push or pull exerted on an object in an effort to change that object's velocity
What is Force?
200
An experiment to determine the level of pollutants in the air
What is Science?
200
If you turn the wheel of a wheel and axle, the mechanical advantage does this for you (Increases the force or increases the speed)
What is increases the force?
200
This simple machine has a mechanical advantage = diameter of the wheel ÷ diameter of the axle
What is a wheel and axle?
200
A block and tackle uses two pulleys, this is the mechanical advantage
What is 2?
2 pulleys = 2 mechanical advantage
300
The distance around a circle, equal to 3.1416 times the circle's diameter
What is Circumference?
300
An experiment to determine how to reduce pollutants produced by automobiles
What is Applied Science?
300
If a third-class lever has a mechanical advantage of 5, it means this
(the resistance will be 5 times easier to lift, or the speed at which the resistance moves will be increased by 5)
What is the speed at which the resistance moves will be increased by 5?
300
This simple machine has a mechanical advantage = number of pulleys used
What is block and tackle?
300
The slope of a wedge is 10 inches and the height is 2 inches, its mechanical advantage is this
What is 5?
(10 ÷ 2)
400
A device that either multiplies or redirects a force
What is a simple machine?
400
A gun for hunting bears
What is Technology?
400
When you turn the wheel of a wheel and axle, the mechanical advantage does this for you (increases the force or increases the speed)
What is increases the force?
400
This simple machine has the mechanical advantage of length of slope ÷ height
What is an inclined plane or wedge?
400
The mechanical advantage of a screw that has a pitch of 0.05 inches and a head diameter or 0.1 inches is this
What is 6.2832?
(circumference = 3.1416 x 0.1 = 0.31416)
(0.31416 ÷ 0.05)
500
The length of a straight line that travels from one side of a circle to another and passes through the center of the circle
What is Diameter?
500
An experiment to find a better gasoline mixture for automobiles
What is Applied Science
500
In this diagram, this simple machine is shown
(inclined plane or wedge)
What is a wedge?
500
This simple machine has a mechanical advantage = circumference ÷ pitch
What is a screw?
500
The mechanical advantage or a screw with a pitch of 0.05 inches being turned with a screwdriver with a diameter of 1 inch
What is 62.832?
(circumference = 3.1416 x 1 = 3.1416)
(3.1416 ÷ 0.05)