Grade 8 Technology Exam 070 Review

Vocabulary-style flashcards covering the Design Process, Graphic Communication, Mechanical Systems, and the Impact of Technology for the Grade 8 Technology SBA02 exam.

Design Process

A series of 5 steps used in Technology to move from a problem to a solution.

Design Considerations

A set of 9 specific factors that must be understood and explained when analyzing a case study.

Graphic Communication

The use of visual representations, line types, and scales to convey technical information in Technology.

Scale

The ratio used to reflect the size of a drawing, which can be used to scale up or scale down an object's representation.

Isometric Drawings

A specific type of technical drawing used for three-dimensional visualization.

Orthographic Drawings

A method of representing three-dimensional objects through different perspectives, categorized into First angle and Third angle.

Gear

A component of a mechanical system used to change speed, direction, or force multiplication.

Idler Gear

A gear positioned between the driver and driven gear to ensure they rotate in the same direction.

Pulley

A mechanical device used in single or compound forms to create mechanical advantage.

Velocity Ratio

A measure of the performance in mechanical systems, often analyzed alongside force multiplication in gears.

Levers

Mechanical components categorized as single or linked used to control movement and force.

Acid Mine Drainage

A dangerous environmental impact of mining in South Africa involving the outflow of acidic water.

Iron Age

The historical era in South Africa characterized by indigenous mining and the use of iron.

Smelting

A 6-step process (plus a final step) used to extract metals from ore.

Mechanical Advantage

The measure of force amplification achieved by using mechanisms, simple mechanisms, or complex machines.

Driver Gear

The gear that provides the initial rotation and power input in a system.

Driven Gear

The gear that receives motion and power from the driver gear.

Cams and Cranks

Specific mechanisms designed to change the direction of movement within a system.

Biodegradable Products

Materials capable of being decomposed by bacteria or other living organisms.

Natural vs. Synthetic Materials

The classification of materials based on whether they are derived from nature or are man-made.

Recycling

The process of converting waste paper and other materials into reusable products to create a positive impact on the environment.