Chapter 5: Work and Machines
5.0(1)
Studied by 5 people
View linked note
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt PlayCard Sorting
1/28
Last updated 3:43 AM on 12/21/22
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
29 Terms
1
New cards
Efficiency
________: a measure of how much of the work put into a machine is changed into useful output work by the machine.
2
New cards
IMA
The ________ can be calculated by dividing the input distance by the output distance.
3
New cards
Mechanical Advantage
________: The ratio of the output force to the input force.
4
New cards
Power
________ is the rate at which work is done.
5
New cards
car jack
A(n) ________ is an example of a machine that increases an applied force.
6
New cards
Wedge
The ________: an inclined plane with one or two sloping sides.
7
New cards
second class lever
For a(n) ________, the output force is located between the input force and the fulcrum.
8
New cards
system of pulleys
A(n) ________ can change the direction of the input force and make it larger.
9
New cards
class lever
For a first- ________, the fulcrum is located between the input and output forces.
10
New cards
third class lever
For a(n) ________, the input force is applied between the output force and the fulcrum.
11
New cards
gear
A(n) ________ is a wheel and axle with the wheel having teeth around its rim.
12
New cards
Lever
________: a bar that is free to pivot or turn around a fixed point.
13
New cards
input work
The ________ is the product of the input force and the distance over which the input force is exerted.
14
New cards
output work
The ________ is the product of the output force and the distance over which that force is exerted.
15
New cards
Oil
________ reduces the friction between two surfaces.
16
New cards
Work
the transfer of energy that occurs when a force makes an object move
17
New cards
Power
the amount of work done in one second
18
New cards
Machine
a device that makes doing work easier
19
New cards
Input Force
The force that is applied
20
New cards
Output Force
The force applied by the machine
21
New cards
Mechanical Advantage
The ratio of the output force to the input force
22
New cards
Efficiency
a measure of how much of the work put into a machine is changed into useful output work by the machine
23
New cards
Simple Machine
a machine that does work with only one movement of the machine
24
New cards
Lever
a bar that is free to pivot or turn around a fixed point
25
New cards
Wheel and Axle
a simple machine consisting of a shaft or axle attached to the center of a larger wheel, so that the wheel and axle rotate together
26
New cards
Inclined Plane
A sloping surface, such as a ramp that reduces the amount of force required to do work,
27
New cards
The Screw
an inclined plane wrapped in a spiral around a cylindrical post
28
New cards
The Wedge
an inclined plane with one or two sloping sides
29
New cards
Compound Machine
Two or more simple machines that operate together
Flashcards (100)