Systems in Action Flash Cards
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Need to study but hate making notes well I got you bro (lol) welcome to my grade 8 note taking study strategy thingy ma bob. Good luck studying for your test, quiz, lesson plans, or just personal learning, whether or not your a teacher or student I hope this helps! Btw i'd love if you could rate me and give a comment btw these flash card require basic understanding of what systems in action are or then you might struggle with the non multiple choice questions.
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23 Terms
An axe is which type of simple machine?
A wedge. It is used to split or cut materials.
Name three different types of simple machines.
Pulley, wheel & axel, lever, wedge, screw, inclined plane
What is the pivot point of a lever called?
Fulcrum
Gravity on Earth is how many N/kg
9.8N/kg Units matter!!
How many types of levers are there?
3
What type (class) of lever is a wheelbarrow?
Second class
Unit of force?
Newtons (N)
What is the difference between mass and weight.
Mass = Matter (kg), Weight = gravity force
Which of the following is the correct lever class and type?
First = Seesaw
Second = Wheelbarrow
Third = Tweezers
Name the three parts of a lever.
Fulcrum, Load, Effort
What affects friction?
Surface, weight, force
What is a system?
Parts working together
What is an example of a natural system?
Ecosystem/ human body
Name and describe 6 simple machines
Lever – lifts/moves things using a bar
Pulley – lifts using rope + wheel
Inclined Plane – ramp (makes lifting easier)
Wheel & Axle – helps things roll
Screw – holds things together
Wedge – cuts/splits (👉 axe = wedge!)
ChatGpt btw rip 😭🥀💀
What does MA stand for?
Mechanical Advantage
What does IMA = 2 mean?
Doubles force
What is the unit of Mechanical Advantage (MA)?
No unit
Formula for Work?
Force X Distance
Unit of Work?
Joules (J)
Formula for Efficiency?
Output / Input X 100%
How to find input force?
Work / Distance
Difference between IMA and AMA
Ideal (MA) Vs Actual (MA)
How to find IMA of a pulley?
Count supporting ropes
