#### Study sets matching "simple machines chapter 7"

#### Study sets matching "simple machines chapter 7"

Simple Machine

Machine

Effort Force

Resistance Force

A device that does work with only one movement

A device that makes work easier

Force applied to the machine (By operator)

Force applied by the machine to overcome resistance

Simple Machine

A device that does work with only one movement

Machine

A device that makes work easier

Machine

Simple Machine

Efficiency

Compound Machine

Any device that makes doing work easier

One of the basic machines on which all other mechanical machin…

The percentage of the input work done on a machine that the ma…

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 machin…

Machine

Simple Machine

Efficiency

Compound Machine

Any device that makes doing work easier

One of the basic machines on which all other mechanical machin…

The percentage of the input work done on a machine that the ma…

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 machin…

What is a lever?

What is the fixed point of rotation in…

What is the part of the lever where the…

What part of the lever where the resist…

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

Wedge

Mechanical Advantage

Effort Arm

Lever

Two inclined planes put together form a simple machine called

The amount by which a machine multiplies an effort force is ca…

The distance from the fulcrum to the point of application of t…

A bar that is free to pivot about a fixed point where the resi…

Wedge

Two inclined planes put together form a simple machine called

Mechanical Advantage

The amount by which a machine multiplies an effort force is ca…

mechanical work (W)

power (P)

simple machine

mechanical advantage (MA)

the equivalent of the amount of energy transferred to an objec…

the rate of doing work, measured in watts (w)

a basic mechanical device that either reduces effort or increa…

a measure of the reduction in effort to do a certain amount of…

mechanical work (W)

the equivalent of the amount of energy transferred to an objec…

power (P)

the rate of doing work, measured in watts (w)

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

Work

Power

True

Efficiency

•Change in an object's position (displacement)... •A force bei…

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 bei…

Power

How quickly work can be accomplished (rate of doing work)

Work

Power

Watt

Machine

When a force produces motion parallel to the direction of forc…

describes the rate at which work is being done. work done divi…

The unit Watt is named after James Watt, the inventor of an im…

is a device that makes work easier by changing the size or dir…

Work

When a force produces motion parallel to the direction of forc…

Power

describes the rate at which work is being done. work done divi…

conditions for mechanical work to occur

work

power

power

applied force, object moves, force applied in direction of mot…

=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 mot…

work

=F•d

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 sy…

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... Ki…

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 sy…

D all of the above

For work to be done, which of the following must be true? ... A.…

What lever is a bar that is __________…

What is the fixed point or rotation cal…

What is the part of the lever where the…

What is the part of the lever where the…

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 cal…

fulcrum

Power

Equilibrium

Wedge

Effort

the rate of doing work

When forces are balanced and there is no acceleration, the sys…

two inclined planes back-to-back

force exerted on the load to move it

Power

the rate of doing work

Equilibrium

When forces are balanced and there is no acceleration, the sys…

Work

Power

Mechanical Advantage

Ideal mechanical advantage

Exchange of energy for some change in a physical system or a r…

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 applied…

Work

Exchange of energy for some change in a physical system or a r…

Power

Rate of doing work or amount of work done in a period of time…

some of out best machines are ___ of Go…

__ envolves the exchange of energy for…

Work evolves the exchange of __ for som…

Work evolves the exchange of energy for…

Imitations

Work

Energy

Physical system

some of out best machines are ___ of Go…

Imitations

__ envolves the exchange of energy for…

Work

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 are…

The force that opposes the effort force - what you have to ove…

The number of times a machine multiplies the effort force. How…

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 are…

1. Applied F... 2. Objcet moves ... 3. Force…

Have only one or two parts to accomplis…

1. Theoretically no more than 100%... 2. P…

What is saved in effort must be made up…

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 accomplis…

Simple machines

Mechanical work

3 conditions for work to occur

Energy

work=force x distance

The exchange of energy for some change in a physical system. A…

1. A force must be applied. 2. The object must move. 3. The fo…

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. A…

3 conditions for work to occur

1. A force must be applied. 2. The object must move. 3. The fo…

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 a…

Joules

-The amount of force exerted... -The distance over which the forc…

Machines

Making Work Easier

Work

- Transfer of energy through motion... -Exertion of a force on a…

Work

Formula for Work

Power

Simple Machine

Done when a force causes an object to move in the same directi…

Work (in joules) = Force (in newtons) x Distance (in meters) W…

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 directi…

Formula for Work

Work (in joules) = Force (in newtons) x Distance (in meters) W…

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 e…

Machine

A device that makes work easier

Simple Machine

Device that does work with only one movement