Front

What is direct proportion?

Back

Direct proportion is a relationship between two quantities where an increase in one quantity results in a proportional increase in the other quantity, and vice versa.

Tags

CCSS.7.RP.A.2A

Front

What is indirect proportion (inverse proportion)?

Back

Indirect proportion is a relationship between two quantities where an increase in one quantity results in a proportional decrease in the other quantity, and vice versa.

Front

How do you calculate the scale factor in a drawing?

Back

The scale factor is calculated by dividing the actual size by the size in the drawing.

Tags

CCSS.7.G.A.1

Front

What is the formula for direct proportion problems?

Back

The formula for direct proportion is (A1 / B1) = (A2 / B2), where A and B are the two quantities being compared.

Tags

CCSS.7.RP.A.2A

Front

What is the relationship between gear teeth and speed in gear systems?

Back

In gear systems, the speed of the output gear is inversely proportional to the number of teeth on the gears. More teeth on the output gear means slower speed.

Front

How do you determine the force needed to lift an object using a lever?

Back

The force needed can be determined using the formula: (Force at long end) x (Distance from pivot to long end) = (Weight) x (Distance from pivot to short end).

Tags

CCSS.3.MD.A.2

Front

What is horsepower and how is it calculated?

Back

Horsepower is a unit of measurement for power. It can be calculated using the formula: Horsepower = (Torque x RPM) / 5252.

Tags

CCSS.8.EE.C.7B

Front

What is the significance of the alternator-to-engine drive ratio?

Back

The alternator-to-engine drive ratio indicates how many times the alternator rotates for each rotation of the engine, affecting the alternator's RPM.

Front

How do you solve for unknown quantities in direct proportion problems?

Back

To solve for unknown quantities, set up a proportion and cross-multiply to find the missing value.

Tags

CCSS.7.RP.A.2C

Front

What is the principle of levers in physics?

Back

The principle of levers states that the moment (force x distance) on one side of the pivot must equal the moment on the other side for the lever to be in equilibrium.