2016 Mod4 Flashcards
Define the following terms:
A. Simple machine
A device that either multiplies or redirects a force.
B. Force
A push or pull exerted on an object in an effort to change that objects velocity.
C. Mechanical advantage
The amount by which force or motion is magnified in a simple machine
D. Diameter
The length of a straight line that travels from one side of a circle to the other and passes through the center
E. circumference
The distance around a circle
How is applied science different from science
Science is motivated by curiosity to understand.
Applied science is trying to find something useful.
What gives rise to technology
A new process more machine that makes life better or a job easier
Identify each of the following as science experiment or an applied science experiment
A. An experiment to determine how to make electronic circuits smaller
B. Can experiment to understand what factors affect how electricity runs in an electronic circuit
C. And experiment to figure out how to reduce electronic noise in an electronic circuit
D. An experiment to figure out the speed of electrons as they flow through an electronic circuit
A. Applied science
B. Science
C. Applied science
D. Science
Which of the following would be considered technology
A. A classifications team for all animals
B. A vaccination that will keep animals from contracting the flu
C. A new diet for dogs that will lead to longer life
D. And understanding of what causes urinary-tract infections and cats
✅ A.
✅ B.
✅ C.
❎ D.
List the six types of simple machines
A lever, a wheel and axle, a pulley, An inclined plane, a wedge, and a screw
Which two simple machines look identical
The inclined plane and the wedge
What is the mechanical advantage of a first-class lever in which the fulcrum is 10 inches from the resistance and 40 inches from the effort
40÷10 equals four
So the mechanical advantage is four
What does the mechanical advantage in question eight mean
I can lift something that weighs 100 pound with only 25 pounds of effort
A shovel is an example of a lever. To what class does the show will be long
Second class lever
A child’s seesaw is a lever. What class does it belong
The first class lever
What is the mechanical advantage of a wheel and axle when the wheel has a diameter of 15 inches and the axle have a diameter of 3 inches
15÷3 = 5
So the mechanical advantage is five
If a person turn the wheel of the wheel and axle in question 12 what would the mechanical advantage do
They would be able to turn something with a lot less force
If a person turn axle in the wheel and axle in question 12, what would the mechanical advantage do
It would make something go faster with less force
A block and tackle is composed of six pleased that all work together. What is the mechanical advantage of the block and tackle system
Six
Using a block and tackle system in question 15, how many feet of rope what do you have to be pulled if a person wanted to lift the load one foot
6 feet of rope
What is the mechanical advantage of an inclined plane with a slope of 6 feet and a height of 2 feet
6÷2 = 3
What is the mechanical advantage of a wedge it with the same dimensions as the inclined plane in 17
Three
A screw with a pitch of 0.1 inches is turned with a screwdriver whose diameter is 2 inches. What is the mechanical advantage
- 141 6×2 = 6.2832
6. 2832÷0.1 equals 62.832
If you are having a hard time turning this group should you get a longer screw driver or a fatter one
A fatter one
