SUBJECT : GENERAL PHYSICS GRADE 12

TOPIC : RELATIONSHIP BETWEEN VARIABLES

TOTAL 0F 10 QUESTIONS

PS : I NEED THE SOLUTION

USE THE SUBSTITUTION METHOD

For items 1 to 3, consider the equation below. X, Y, Z, S, T, and U are variables. X2 Y ST2 Z U 1. Which pair of variables are inversely proportional to each other? * 1 point O S and T X and Y O X and T O S and Z 2. Which pair of variables follows direct square proportion? * 1 point O Y and T O Y and S O Y and X O Y and U3. Assuming that all else is constant, which variable when increased will * 1 point decrease the value of variable Y? O Z O T O U O s 4. Consider the data given in the table below. What type of proportionality * 1 point exists between X and Y? Variable X Variable Y H H 2 4 3 9 4 16 O direct proportion O inverse square proportion O inverse proportion O direct square proportionFor items 5 to 7, consider this equation. D, A, and T are variables. D = AT2 5. What will happen to D if A increases eight-fold, ceteris paribus? * 1 point O increase eight-fold O increase two-fold O increase four-fold O remain the same 6. What will happen to D if T increases two-fold, ceteris paribus? * 1 point O remain the same O increase two-fold O decrease two-fold O increase four-fold7. How should T change if D should remain constant while A increases * 1 point sixteen-fold? O increase four-fold O increase two-fold O decrease two-fold O decrease four-fold For items 8 to 10, consider the equation below. X, Y, Z, S, T, and U are variables. X2 Y ST2 = Z U 8. What will happen to Z if S is doubled while U is quadrupled, ceteris * 1 point paribus? increase eight-fold decrease two-fold O decrease eight-fold increase two-fold9. What will happen to X if Z increases four-fold and T increases two-fold, * 1 point ceteris paribus? increase two-fold O increase sixteen-fold increase four-fold O increase eight-fold 10. What will happen to Y if S increases three-fold while U decreases three- * 1 point fold, ceteris paribus? O remain the same O decrease nine-fold O increase three-fold increase nine-fold