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

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

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…

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…

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)

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

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

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)

Work

Power

Watt

Machine

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

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

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

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

Work

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

Power

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

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…

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

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

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…

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

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…

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

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

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…

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…

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)…

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

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

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…