L1/L2/L3 ;-;
What is a simple machine
A tool or device made up of one basic machine that have little or no movement.
What is a Rube Goldberg machine?
An abomination of simple machine, complicated machine, made of common household objects, that performs a very simple task.
What is energy?
It can be many different things. It can be Heat, chemical, nuclear or electrical.
What is Efficiency?
A type measurement of how well a machine or device uses energy
What is a system
A group of parts that work together to perform an action or job.
What is a lever
A rigid bar or plank that can rotate around a fulcrum.
Who was Rube goldberg
An enthusiastic American man who writes American cartoons and is a engineer.
What are the two types of energy
Answer: Potential which is stored energy, Kinetic which is working energy.
What is work?
When force acts on an object to make the object move
A person does 12000 J of work to move a box of gift cards 6m. What force was required to move the box?
Answer: 12000/6=2000 = 2000n
What is a machine?
A rigid bar or plank that can rotate around a fulcrum.
What is a hydraulic system?
a liquid in an enclosed shape usually a syringe, under pressure to move loads.
What is input force and output force?
Force applied to the machine is input force, force the machine applies to the object is output force.
How do you calculate work?
Work Input= Force input x Distance Input
A person is using a lever to lift a 900n box of 800 cm. This lever is 50% efficient
800/100=8 8 x 900= 7200 7200/2=50%= 7200/2=3600
7200+ 3600=10800= 7200+50%=10800
What is an Archimedes Screw?
A screw inside a tube that turned and raised water to the top of the tube.
What is Pressure?
A measure of the amount of force applied to a given area.
What is speed ration
The measurement of the distance an object has traveled in a given amount of time.
What are gear trains?
A gear train is Two or more wheels working together.
A 31N box is lifted 100m. What is the work?
3100 work
What is the purpose of a machine?
Each machine is designed to meet a basic need.
What is a complex machine?
A device made of several simple machines put together.
What is friction
A force that opposes movement
What does a gear consist of ?
A gear is a metal or any solid material,circle with blunt or sharp teeth that can interlock with each other to complete a task.
What is a system?
A group of parts that work together top preform a job or task