Simple Machines Quiz.

Slides:



Advertisements
Similar presentations
Mechanical advantage, Efficiency and WO WI
Advertisements

How do machines work?.
5.2 Using Machines.
SIMPLE MACHINES \\Sv0002\stares$\Middle School\Science\Gr. 8\ \Quarter 4\Simple Machines\Videos.
Chapter 4 Machines, Work, and Energy
Wednesday, February 24th Agenda
Mechanical Advantage and Simple Machines
Inclined Plane Simple Machines.
Simple Machines Why are machines useful and how do they relate to what he have been discussing about energy?
Work Work happens when a force moves an object over a distance.
Simple Machines. Simple machines: Reduce the effort (force multiplier)
Mechanical Advantage You mean I don’t have to use the shovel?!
Calculating Mechanical Advantage Inclined Plane, Pulley, Lever.
What is mechanical advantage?
Simple Machines Machines Lever Inclined plane Pulley Screw Wedge Wheel & axle.
Mechanical Advantage How much does an inclined plane, screw, wedge, pulley or lever really help you?
Mechanical Advantage.
Simple machine force – distance trade-off:
$100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300 $400 $500 $100 $200 $300.
Mechanical Advantage of the 6 Simple Machines. Content Objectives SWBAT calculate mechanical advantage for the six simple machines. Language Objectives.
Machine- a device that makes work easier by changing the direction or size of the force.
Mechanical Advantage The measurement of how useful a machine is to the job.
Simple Machines. Example A frictionless 30 o ramp is used to lift a 500kg crate up a vertical distance of 1.5m. If the ramp is used is 4.0m long, a) What.
Machines What is a machine? How do you calculate the M.A. and Efficiency of a machine?
Simple Machines There are 6 basic simple machines.
Work and Machines. What is a machine? A device that allows you to do work in a way that is easier and more effective.
Machines. Simple Machines  Work out is less than or equal to Work in.  Force out can be greater than Force in.
Mechanical advantage The number of times a force exerted on a machine is multiplied by the machine Mechanical advantage (MA). = resistance force effort.
JEOPARDY – work and Simple Machines Final Jeopardy Simple Machines.
Add to Pulley Lab/notes in your journal Mechanical Advantage of pulleys – More pulleys = more support (divides the rope into more sections to support the.
Chapter Nine: Simple Machines  9.1 Types of Simple Machines  9.2 Mechanical Advantage  9.3 Levers in the Human Body.
Chapter 11 work and machines. Anytime that you exert a force and cause an object to move in the direction of the applied force you do _________. work.
How Machines do WORK A Machine – is a device that allows you to do work in a way that is easier or more effective. INPUT FORCE – is the force you exert.
Work & Machines.
Mechanical Advantage You mean I don’t have to use the shovel?!
Machines & Mechanical Systems
Mechanical Advantage and Efficiency
Jeopardy Hosted by Miss Dell.
ENERGY EQUATIONS By the end of this presentation you should be able to: Calculate kinetic energy, work and power.
Simple Machines Device that makes doing work easier is a machine
Chapter 6 Work and Machines Section 2 – Using Machines
What is the formula for power?
Sci. 4-2 What is a Machine? Pages
Chapter 6 – Work and Machines
Using Machines.
Mechanical Advantage and Efficiency
Chapter 14 Section 2.
Wheel and Axle Lever Simple Machines Pulley Screw Wedge Inclined Plane.
What is “Effort”? While there are more technical definitions, we can think of effort as how hard it is to accomplish work. Usually, riding on a moving.
Simple machines - Levers
14-3 Mechanical Advantage and Efficiency Answer on a separate sheet of paper Objectives: 1. How does the actual mechanical advantage of a machine compare.
How Machines Do Work Chapter 12 Section 2.
How can you make work easier on yourself?
Topic 2.1 – Machines Make Work Easier
Efficiency and Mechanical Advantage
Mechanical Advantage Simple Machines.
What is the mechanical advantage of a machine?
Mechanical Advantage Simple Machines.
6.2 – Using Machines.
Bell Ringer What is the formula for work?
Why we use machines.
Jillian Pardini & Hank Finch
How do machines do work? 12-2.
Mechanical Advantage Simple Machines.
Work and Mechanical Advantage
Group Members First Names
Warm-Up 10/28/13 Compare work and power. How are they the same, and how are they different? In the stairs lab on Friday, did it take more power to go.
Chapter 14 Section 2.
How Do Machines Work Chapter 4 Section 2.
Key Question: What is a simple machine?
Presentation transcript:

Simple Machines Quiz

Q1: The force you have to do to a machine is called: A: Input Force

Q 2: A more efficient machine will have a mechanical advantage of… A: More than 1

A: Tool B (Compare the Input & Output sides) Q 3: Which of these tools would have a better (higher) Mechanical Advantage? Tool B Tool A (use the two skateboards & p A: Tool B (Compare the Input & Output sides)

Q 4: What would the mechanical advantage of a machine be that had an output force of 24 N and an input force of 8 N? A: 3

Q 5: The force a machine will do as a result of what you did is called: A: Output force

Q 6: What two things do machines do for us? Why? A: More power & less effort

Q 7: Which side of the machine needs to be longer for a better mechanical advantage? A: Input side

Q 8: Which ramp would have a better Mechanical Advantage? Ramp A Ramp B Height is the same A: Ramp A Longer ramps = less steep = better MA

Q 9: If the mechanical advantage of a machine is really low, what will the effort be like? A: More effort needed

Q 10: Why would a car be considered to have more power than a bike? A: The car travels faster

A: The ramp on the right gets LESS work done! Q 11: If the two ramps are the same length, what is wrong with choosing the shorter height ramp to get the job done instead of the taller ramp? Work = Force x Distance A: The ramp on the right gets LESS work done!

Q 12: “What was accomplished?” is another way to ask about what? A: Work