Ch 7 and Ch 8 that is hard

flash cards q &a

What is a system in technology?

A system is a group of parts, mechanisms, devices, or machines assembled to perform a specific task.

What is the overall function of a heating system?

The overall function of a heating system is to heat.

What are the three types of controls in a system?

Mechanical, Electric or Electronic, and Optical controls.

What are the seven categories of inputs in a system?

People, Equipment, Information, Energy, Materials, Capital, and Time.

What are outputs in a system?

Outputs are anything that exits a system after it has finished working.

What is the example of a desirable output of a car's engine?

The motion of the car when the gas pedal is pressed.

What defines a manufacturing process sheet?

A manufacturing process sheet outlines the steps, equipment, materials, and time required for making an object.

What is the first step in the manufacturing process?

Measuring and marking materials before creating a technical object.

What is mechanical energy?

Mechanical energy is the energy that comes from the motion of an object or its position in space.

Define thermal energy.

Thermal energy comes from the agitation of particles in matter, usually produced from combustion.

What does a motor do?

A motor transforms energy from electricity, combustion, or a battery into thermal or mechanical energy.

What is energy transformation?

Energy transformation is the conversion of one form of energy into another.

What does a simple machine do?

A simple machine allows a task to be completed faster or with less effort.

What is an inclined plane?

An inclined plane is a flat surface set at an angle, which reduces the amount of effort needed to raise or lower a load.

What is the difference between first-class, second-class, and third-class levers?

First-class levers change the direction of force, second-class levers reduce force needed, and third-class levers increase speed and precision.

What is the effect of a pulley system?

Pulleys can change the direction of force and reduce the force needed when several pulleys are used together.

What is the function of a chain and sprocket system?

A chain and sprocket system transmits motion without slipping and handles large forces.

How does a rack and pinion system work?

A rack and pinion system consists of a toothed wheel (pinion) that moves a straight toothed rod (rack) to convert rotational motion into linear motion.

What is a cam and follower mechanism?

A cam and follower mechanism transforms rotational motion into bidirectional translational motion.