Study sets matching "simple machines chapter 7"

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Study sets matching "simple machines chapter 7"

19 terms
Chapter 7: Simple Machines
Machine
Simple Machine
Efficiency
Compound Machine
Any device that makes doing work easier
One of the basic machines on which all other mechanical machi…
The percentage of the input work done on a machine that the m…
A machine that is made up of two or more simple machines
Machine
Any device that makes doing work easier
Simple Machine
One of the basic machines on which all other mechanical machi…
19 terms
Chapter 7: Simple Machines
Machine
Simple Machine
Efficiency
Compound Machine
Any device that makes doing work easier
One of the basic machines on which all other mechanical machi…
The percentage of the input work done on a machine that the m…
A machine that is made up of two or more simple machines
Machine
Any device that makes doing work easier
Simple Machine
One of the basic machines on which all other mechanical machi…
23 terms
Simple Machines Chapter 7
Rube Goldberg Machine
Work
Energy
Power
a complicated invention laboriously contrived to perform a si…
Force x Distance
Capacity to do work
(physics) the rate of doing work
Rube Goldberg Machine
a complicated invention laboriously contrived to perform a si…
Work
Force x Distance
Physical Science Chapter 7 Work and Simple Machines
mechanical work (W)
power (P)
simple machine
mechanical advantage (MA)
the equivalent of the amount of energy transferred to an obje…
the rate of doing work, measured in watts (w)
a basic mechanical device that either reduces effort or incre…
a measure of the reduction in effort to do a certain amount o…
mechanical work (W)
the equivalent of the amount of energy transferred to an obje…
power (P)
the rate of doing work, measured in watts (w)
28 terms
Chapter 7 and Simple Machines
energy
work
work equation
work unit
the property of a system that enables work
the product of the force and distance moved by the force
W=Fd
joule
energy
the property of a system that enables work
work
the product of the force and distance moved by the force
17 terms
Chapter 7 simple machines
What is a lever?
What is the fixed point of rotation in…
What is the part of the lever where th…
What part of the lever where the resis…
a bar that is free to pivot about a fixed point
fulcrum
effort arm
resistance arm
What is a lever?
a bar that is free to pivot about a fixed point
What is the fixed point of rotation in…
fulcrum
16 terms
Chapter 7 simple machines
what is a lever
what is the fixed point of rotation on…
what is the effort arm
what is the resistance arm
a lever is a bar that is free to pivot around a fixed point
fulcrum
the part of a lever where force is applied
where the
what is a lever
a lever is a bar that is free to pivot around a fixed point
what is the fixed point of rotation on…
fulcrum
Chapter 7: Simples Machines
Work
Power
True
Efficiency
‌•Change in an object's position (displacement)... ‌•A force be…
How quickly work can be accomplished (rate of doing work)
T/F: Frictionless machines do not exist?
What percentage of the work input is used in the desired way
Work
‌•Change in an object's position (displacement)... ‌•A force be…
Power
How quickly work can be accomplished (rate of doing work)
40 terms
Chapter 7: Work and Simple Machines
conditions for mechanical work to occur
work
power
power
applied force, object moves, force applied in direction of mo…
=F•d
rate of motion at which work is accomplished
=W/t
conditions for mechanical work to occur
applied force, object moves, force applied in direction of mo…
work
=F•d
Chapter 7 work and simple machines
A. Measured in newtons
D all of the above
Watt
Making it easier or faster to do work.
Work is not... A. Measured in newtons ... B. A force exerted on a s…
For work to be done, which of the following must be true? ... A…
The rate of doing work is measured in which unit... Watt... Joule... K…
A simple machine helps us do work by
A. Measured in newtons
Work is not... A. Measured in newtons ... B. A force exerted on a s…
D all of the above
For work to be done, which of the following must be true? ... A…
science chapter 7:simple machines
What lever is a bar that is __________…
What is the fixed point or rotation ca…
What is the part of the lever where th…
What is the part of the lever where th…
free to pivot
fulcrum
effort arm
resistance arm
What lever is a bar that is __________…
free to pivot
What is the fixed point or rotation ca…
fulcrum
17 terms
Chapter 7 simple machines test
lever-
fulcrum-
effort-
resistance-
rigid bar that rests on a pivot point
fixed point on which the lever pivots
point where the force is applied
point where lever puts force on resistance
lever-
rigid bar that rests on a pivot point
fulcrum-
fixed point on which the lever pivots
30 terms
Physical Science Chapter 7- Simple Machines
Work
Power
Mechanical Advantage
Ideal mechanical advantage
Exchange of energy for some change in a physical system or a…
Rate of doing work or amount of work done in a period of time…
The number of times a machine multiplies the force applied to…
The number of times a machine would multiply the force applie…
Work
Exchange of energy for some change in a physical system or a…
Power
Rate of doing work or amount of work done in a period of time…
30 terms
Physical Science Chapter 7- Simple Machines
Work
SI unit for work
Power
SI unit for power
Exchange of energy for some change in physical
joules
rate of doing work
watts
Work
Exchange of energy for some change in physical
SI unit for work
joules
96 terms
physical science// chapter 7// work & simple machines
some of out best machines are ___ of G…
__ envolves the exchange of energy for…
Work evolves the exchange of __ for so…
Work evolves the exchange of energy fo…
Imitations
Work
Energy
Physical system
some of out best machines are ___ of G…
Imitations
__ envolves the exchange of energy for…
Work
14 terms
Chapter 15 - Simple Machines
Machines
Effort force
Resistance Force
Mechanical advantage (IMA)
Make work easier by changing the size, direction, or speed of…
The force you apply to a machine. Think - where your hands ar…
The force that opposes the effort force - what you have to ov…
The number of times a machine multiplies the effort force. Ho…
Machines
Make work easier by changing the size, direction, or speed of…
Effort force
The force you apply to a machine. Think - where your hands ar…
Chapter 7 Notes Science/ Simple Machines (Notes)
Machines
Work
What is Work and Energy measured in?
What does the amount of work depend on?
Making Work Easier
- Transfer of energy through motion... -Exertion of a force on…
Joules
-The amount of force exerted... -The distance over which the for…
Machines
Making Work Easier
Work
- Transfer of energy through motion... -Exertion of a force on…
23 terms
Physical Science chapter 7 Work and Simple Machines
1. Applied F... 2. Objcet moves ... 3. Force…
Have only one or two parts to accompli…
1. Theoretically no more than 100%... 2.…
What is saved in effort must be made u…
3 conditins for mechanical work to occur
Simple machines
Efficiency
Distance principle
1. Applied F... 2. Objcet moves ... 3. Force…
3 conditins for mechanical work to occur
Have only one or two parts to accompli…
Simple machines
Chapter 7/Simple Machines (Prep for Quiz)
Machine
Simple Machine
6 Types of Simple Machines
How do machines make work easier?
A device that makes work easier
Device that does work with only one movement
-Lever... -Inclined Plane ... -Pulley... -Wheel and Axle... -Wedge... -Screw
-Changing the direction of the force... -Changing the force you…
Machine
A device that makes work easier
Simple Machine
Device that does work with only one movement
42 terms
Chapter 7. Simple machine. Physical Science
Mechanical work
3 conditions for work to occur
Energy
work=force x distance
The exchange of energy for some change in a physical system.…
1. A force must be applied. 2. The object must move. 3. The f…
When work is done on a system it gains ........
Formula for work.
Mechanical work
The exchange of energy for some change in a physical system.…
3 conditions for work to occur
1. A force must be applied. 2. The object must move. 3. The f…
Chapter 7 test Gordon (simple machines)
how many simple machines are there
what is a fulcrum
what is an inclined plane
what are some examples of pulleys
6
the fixed point of a lever
a slanted surface used to lift an object
fixed, moveable, and block and tackle
how many simple machines are there
6
what is a fulcrum
the fixed point of a lever
Chapter 3: Work and Simple Machines
Work
Formula for Work
Power
Simple Machine
Done when a force causes an object to move in the same direct…
Work (in joules) = Force (in newtons) x Distance (in meters)…
How quickly work is done
A machine that does work with only one movement
Work
Done when a force causes an object to move in the same direct…
Formula for Work
Work (in joules) = Force (in newtons) x Distance (in meters)…
18 terms
simple machines yr 7
simple machine
wedge
screw
wheel and axle
a basic device that can change the amount or the direction of…
2 inclined planes placed back to back
a series of inclined planes wrapped around a pole
a large wheel attached to a smaller wheel
simple machine
a basic device that can change the amount or the direction of…
wedge
2 inclined planes placed back to back
Technology - 7 - Simple Machines
1st class lever
2nd class lever
3rd class lever
Inclined plane
load - pivot - force... examples: seesaw, crowbar, scissors, pli…
pivot - load - force... examples: wheelbarrow, bottle opener, nu…
pivot - force - load... examples: tweezers, tongs
a slanted surface used to raise objects... examples: ramps, ladd…
1st class lever
load - pivot - force... examples: seesaw, crowbar, scissors, pli…
2nd class lever
pivot - load - force... examples: wheelbarrow, bottle opener, nu…
29 terms
Chapter 8: Simple Machines
Simple Machines
Screw
Axle
Wheels as force multipliers
Basic devices that can change the amount or the direction of…
A spiral inclined plane. A simple machine designed to cut thr…
The centre of a wheel.
Where force applied to the rim of the wheel turns the axle wi…
Simple Machines
Basic devices that can change the amount or the direction of…
Screw
A spiral inclined plane. A simple machine designed to cut thr…
13 terms
Chapter 17: Simple Machines
work
simple machine
lever
fulcrum
the use of force to move an object over a distance
a machine with few or no moving parts that you apply with jus…
a simple machine made of a bar that pivots on a fixed point
the fixed point on a lever
work
the use of force to move an object over a distance
simple machine
a machine with few or no moving parts that you apply with jus…
30 terms
Chapter 3 Simple Machines
Simple Machines
6 Simple Machines
friction
force
Tools with few or no moving parts are _______. PG C44... Tools t…
lever, pulley, screw, wheel and axle, inclined plane, wedge
Force created when two objects rub against each other.
A push or pull on an object. PG C46
Simple Machines
Tools with few or no moving parts are _______. PG C44... Tools t…
6 Simple Machines
lever, pulley, screw, wheel and axle, inclined plane, wedge
Chapter 12 Simple Machines
Which is a fixed pulley?
A pulley with a fixed part and a movea…
How many types of levers are there?
Example of a 1st class lever
block and tackle
3
seesaw
Which is a fixed pulley?
A pulley with a fixed part and a movea…
block and tackle
25 terms
chapter 24a - simple machines
A
A
B
C
A
A
12 terms
Chapter 3 Work and Simple Machines
Work
Power
mechanical advantage
efficiency
the transfer of energy to an object by a force that makes an…
the rate at which work is done
the ratio of a machine's output force produced to the input f…
the ratio of the output work to the input work in a machine
Work
the transfer of energy to an object by a force that makes an…
Power
the rate at which work is done
37 terms
Chapter Seven: Work And Simple Machines
what are some of the best simple machi…
work
What is the SI unit for work?
mechanical work
God's Creation
the exchange of energy to create change in a physical system
joule
-most familiar... -a force acts on an object, and it moves in th…
what are some of the best simple machi…
God's Creation
work
the exchange of energy to create change in a physical system
16 terms
Science 14 Chapter 7: Simple Machines and Energy Transfer (UNIT B)
Fulcrum
Load
Effort
Load Distance
The support point on which a lever pivots
The object that is moved by a lever
The force required to move an object
The distance between the fulcrum and the load
Fulcrum
The support point on which a lever pivots
Load
The object that is moved by a lever
17 terms
Year 7 Simple Machines
Effort
Load
Fulcrum
Simple machine
force applied to a lever to overcome a load
force that a lever is used to overcome
point about which a lever pivots
a device that makes work easier by changing the size or direc…
Effort
force applied to a lever to overcome a load
Load
force that a lever is used to overcome
9 terms
Chapter 6: Simple Machines
work
simple machines
lever
fulcrum
the use of force to move an object over a distance.
a machine with few or no moving parts that you apply just one…
a simple machine made of a bar that pivots on a fixed point.
the fixed point on a lever.
work
the use of force to move an object over a distance.
simple machines
a machine with few or no moving parts that you apply just one…
chapter 11 simple machines
work
joule
power
watt
Force x Distance... Labor
A unit of work equal to one newton-meter
(physics) the rate of doing work
A measure of power equal to one joule of work per second.
work
Force x Distance... Labor
joule
A unit of work equal to one newton-meter
7 types of simple machines
inclined plane
wedge
screw
lever
flat, sloped ramp
moving inclined plane that has one or two sides
inclined plane that is wrapped around a cylinder or tube
plank or board balancing on a rigid rock or a fixed point cal…
inclined plane
flat, sloped ramp
wedge
moving inclined plane that has one or two sides
14 terms
Chapter 16 Simple Machines
Work
Machine
Simple machine
Compound machine
Using force- pushing or pulling-in order to move and object t…
Any device that helps do work
A tool made up of one or two parts
Contains one or more simple machines
Work
Using force- pushing or pulling-in order to move and object t…
Machine
Any device that helps do work
Work and Simple Machines (chpt 7)
Mechanical work (W)
Power (P)
watt (W)
Simple machine
The equivalent od the amount of energy transferred to an obje…
The rate of doing work, measured in watts (W) in the SI
The SI unit of power; 1 W= 1 J/s
A basic mechanical device that either reduces effort or incre…
Mechanical work (W)
The equivalent od the amount of energy transferred to an obje…
Power (P)
The rate of doing work, measured in watts (W) in the SI
Chapter 9 Simple Machines
Work
Joule
Power
Watt
exerting a force on an object that causes motion
force in newtons and distance in meters (label)
the rate at which work is done
one joule of work done in 1 second (label)
Work
exerting a force on an object that causes motion
Joule
force in newtons and distance in meters (label)
9 terms
Chapter 16: Simple Machines Vocab
lever
fulcrum
load
effort
a simple machine that consists of a bar that pivots at a fixe…
The fixed point around which a lever pivots
object being lifted or moved
exertion
lever
a simple machine that consists of a bar that pivots at a fixe…
fulcrum
The fixed point around which a lever pivots
12 terms
Chapter 4 simple machines
Can opener
Wheelbarrow
Crowbar
Submarine
Compound machine that is comprised of a wheel and axle and a…
A second class lever used to move heavy loads without carryin…
First class lever used for prying open boxes
Compound machine that uses ballast tanks to rise and sink
Can opener
Compound machine that is comprised of a wheel and axle and a…
Wheelbarrow
A second class lever used to move heavy loads without carryin…
9 terms
Chapter 16- Simple Machines
Lever
Fulcrum
Load
Effort
A simple machine made of a bar resting on a fulcrum
The support on which a lever plus its load rests
The weight that is to be lifted or moved
The force used on a simple machine
Lever
A simple machine made of a bar resting on a fulcrum
Fulcrum
The support on which a lever plus its load rests
7 Simple Machines Vocabulary
Machine
Wheel and axle
Effort force
Resistance force
A device that makes work easier.
Two different-sized wheels that turn together around the same…
The force applied to a machine.
The force that opposes the effort force.
Machine
A device that makes work easier.
Wheel and axle
Two different-sized wheels that turn together around the same…
Chapter 8 Work, Power, Simple Machines
Work
When is work done?
Calculating Work
Joule
when a force causes an object to move in the direction of the…
work is only done if an object moves in the same direction as…
W = F x d or W = N x m = J
a unit used to measure work in terms of newtons x meters = a…
Work
when a force causes an object to move in the direction of the…
When is work done?
work is only done if an object moves in the same direction as…
15 terms
Chapter 8 - Simple Machines
work
machine
work input
work output
done when a force is applied through a distance
a device that makes work easier by changing size or direction…
the work that you do on a machine
the work done by the machine on an object
work
done when a force is applied through a distance
machine
a device that makes work easier by changing size or direction…
15 terms
Simple Machines Chapter 16
machine
lever
fulcrum
load
one thing or combination of things that help do work
A long bar with a support . The weight of the bar and what it…
the support that carries the weight of the lever and the load
a weight to be lifted or moved
machine
one thing or combination of things that help do work
lever
A long bar with a support . The weight of the bar and what it…
15 terms
Chapter 16: Simple Machines
Work
Machine
Simple Machine
Compound Machine
Using force,pushing or pulling
Any device that helps people do work
Tool made up of one or two parts
Contains one or more simple machines among its parts
Work
Using force,pushing or pulling
Machine
Any device that helps people do work
Chapter 4 simple machines
Lever
Inclined plane
Screw
Wedge
A bar that turns against an unmoving point.
A flat surface with one end higher then the other
A bar that has an inclined plane wrapped around it
A double inclined plane that can split an object
Lever
A bar that turns against an unmoving point.
Inclined plane
A flat surface with one end higher then the other
9 terms
Simple Machines - Chapter 17
work
simple machines
lever
fulcrum
the use of force to move an object over a distance
a machine with few or no moving parts that you apply just one…
a simple machine made of a bar that pivots on a fixed point
the fixed point on a lever
work
the use of force to move an object over a distance
simple machines
a machine with few or no moving parts that you apply just one…
9 terms
Simple Machines - Chapter 17
work
simple machines
lever
fulcrum
the use of force to move an object over a distance
a machine with few or no moving parts that you apply just one…
a simple machine made of a bar that pivots on a fixed point
the fixed point on a lever
work
the use of force to move an object over a distance
simple machines
a machine with few or no moving parts that you apply just one…
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