How can we help?

You can also find more resources in our Help Center.

Study sets matching "simple machines chapter 7"

Study sets
Classes
Users

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
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
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)
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
24 terms
Chapter_7 Work & Simple Machines
work
simple machine
torque
rotational equilibrium
Force x Distance
A machine that does work with only one movement
A force that causes rotation
sum of all torques acting on an object is zero
work
Force x Distance
simple machine
A machine that does work with only one movement
41 terms
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…
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
18 terms
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)
28 terms
Chapter 7 Work and Simple Machines
work
Power
simple machines
distance principle
must have an applied force, object moving, F must be applied…
rate at which work is accomplished; watts
have only 1 or 2 parts to accomplish work by
what's saved in effort must be made up in distance
work
must have an applied force, object moving, F must be applied…
Power
rate at which work is accomplished; watts
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…
15 terms
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
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…
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
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
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
25 terms
chapter 24a - simple machines
A
A
B
C
A
A
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
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
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…
18 terms
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
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
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
28 terms
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
40 terms
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…
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…
14 terms
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…
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
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…
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…
12 terms
Simple Machines (Chapter 16)
Pulley
Wheel-and-Axle
Fulcrum
Screw
A simple machine made of a wheel with a line around it
A simple machine made of a wheel and an axle that turn together
The fixed point on a lever
A simple machine made of a post with an inclined plane wrappe…
Pulley
A simple machine made of a wheel with a line around it
Wheel-and-Axle
A simple machine made of a wheel and an axle that turn together
37 terms
ch 7 work and simple machines
measured in newtons
- a force must be exerted on a system…
watt
making it easier or faster to do work
work is not.....
for work to be done, which of the following must be true
the rate of doing work is measured in which unit?
a simple machine helps us to do work by
measured in newtons
work is not.....
- a force must be exerted on a system…
for work to be done, which of the following must be true
40 terms
Chapter 16-Simple Machines
What is a long bar resting on a support?
What is the support on which a lever a…
What is the weight that is lifted or m…
What happens when the fulcrum is moved…
Lever
Fulcrum
Load
The effort need is less than the load
What is a long bar resting on a support?
Lever
What is the support on which a lever a…
Fulcrum
17 terms
Chapter 3 Work and Simple Machines
Work
Calculating Work
Power
Calculating Power
the transfer of energy to an object by a force that makes an…
Work = Force(in newtons) x Distance (in meters)... W = FxD
the rate at which work is done
Power (in watts) = work (in joules)/time (in seconds)... P = W/T
Work
the transfer of energy to an object by a force that makes an…
Calculating Work
Work = Force(in newtons) x Distance (in meters)... W = FxD
32 terms
PS Chpt 7 Work and Simple Machines
work
Work Formula
power
power formula
exchange of energy for some change in physical system
w=fd (forcedisplacement) measured joules (J)
rate of doing work
p=W/t (work/time measures in Watts (W)
work
exchange of energy for some change in physical system
Work Formula
w=fd (forcedisplacement) measured joules (J)
1 of 10