7th - Ratios & Proportionality Module 1 TEST REVIEW

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division, showing how many times one value contains or is contained within the other.

Front

What is proportionality?

Back

Proportionality refers to the relationship between two quantities where their ratio remains constant.

Front

How do you find the scale factor in a scale drawing?

Back

The scale factor is found by dividing the length of a side in the drawing by the corresponding length in the actual object.

Front

What is the purpose of using scale drawings?

Back

Scale drawings are used to represent objects in a smaller or larger size while maintaining the same proportions.

Front

If a scale drawing has a scale of 1:3, what does this mean?

Back

It means that 1 unit on the drawing represents 3 units in reality.

Front

How do you calculate the total cost of tickets for a group?

Back

Multiply the number of tickets by the price per ticket.

Front

What is the relationship between length and area in proportionality?

Back

In proportionality, if the length of a shape is scaled by a factor, the area is scaled by the square of that factor.

Front

What does it mean to compute actual lengths from a scale drawing?

Back

It means to use the scale factor to convert measurements from the drawing to real-world dimensions.

Front

What is the formula for finding the area of a rectangle?

Back

Area = length × width.

Front

If the length of a rectangle is doubled, how does that affect the area?

Back

The area becomes twice as large if only the length is doubled.