# Summative Test Module 2

## Quiz by Hannah Jean Rico

Feel free to use or edit a copy

includes Teacher and Student dashboards

### Measures 3 skills from

Track each student's skills and progress in your Mastery dashboards

- edit the questions
- save a copy for later
- start a class game
- automatically assign follow-up activities based on students’ scores
- assign as homework
- share a link with colleagues
- print as a bubble sheet

- Q1
It is defined as the variation where a quantity depends directly on two or more other quantities,

Combined

Inverse

Direct

Joint

30sM9AL-IIa-1 - Q2
Constant of variation is also known as ___________________________

Constant of Dependent Variable

Constant of Change

Constant of Independent Variable

Constant of Proportionality

30sM9AL-IIa-1 - Q3
It is defined as the variation where a quantity depends on two or more other quantities, whereas one quantity varies directly while the other quantity varies inversely.

Joint

Inverse

Direct

Combined

30sM9AL-IIa-1 - Q4
Which of the following equations best represent the statement

*“y varies directly as x and the square of z*”?𝑦 = 𝑘𝑥𝑧

𝑦 = 𝑘𝑥𝑧

^{2}$y=\backslash frac\{kx\}\{z^2\}$

$y=\backslash frac\{kx\}\{z\}$

30sM9AL-IIa-b-1 - Q5
If z varies jointly with x and y. When x=2 and y= -6, z= 24, then find z when x =-4 and y =5.

z=-20

z=-40

z=20

z=40

120sM9AL-IIb-c-1 - Q630sM9AL-IIa-1
- Q730sM9AL-IIa-1
- Q830sM9AL-IIa-1
- Q9
“

*The Work w (in Joules) done when lifting an object varies jointly with the mass m (in Kilogram) of the object and the height h (in meters) that the object**is lifted. The work done when a 120-kilogram object is lifted 1.8 meters is 2,116.8 Joules.”**Which of the following best translates the given situation into its corresponding mathematical equation?*𝑤 = 𝑚ℎ

𝑤 = 𝑘𝑚ℎ

$w=\backslash frac\{m\}\{h\}$

$w=\backslash frac\{km\}\{h\}$

60sM9AL-IIb-c-1 - Q10
“

*The Work w (in Joules) done when lifting an object varies jointly with the mass m (in Kilogram) of the object and the height h (in meters) that the object**is lifted. The work done when a 120-kilogram object is lifted 1.8 meters is 2,116.8 Joules.”**Question:**What is the constant of variation?*k = 9

k=9.8

k=8.9

k = 8

300sM9AL-IIb-c-1 - Q11
“

*The Work w (in Joules) done when lifting an object varies jointly with the mass m (in Kilogram) of the object and the height h (in meters) that the object**is lifted. The work done when a 120-kilogram object is lifted 1.8 meters is 2,116.8 Joules.”**Question:*How much work is done when lifting a 100-kilogram object 1.5 meters?

1 470 Joules

1 704 Joules

1 047 Joules

1740 Joules

300sM9AL-IIb-c-1 - Q12
“

*The volume of wood in a tree (V) varies directly as the height (h) and inversely as the square of the girth (g). The volume of a tree is 144 cubic meters when the height is 20 meters and the girth is 1.5 meters.”**Question:**Which of the following best translates the given situation into its corresponding mathematical equation?*$v=khg^2$

$v=\backslash frac\{h\}\{g^2\}$

$v=\backslash frac\{kh\}\{g^2\}$

$v=hg^2$

30sM9AL-IIb-c-1 - Q13
“

*The volume of wood in a tree (V) varies directly as the height (h) and inversely as the square of the girth (g). The volume of a tree is 144 cubic meters when the height is 20 meters and the girth is 1.5 meters.”**Question:*What is the constant of variation?

k=10.8

k=20.8

k=26.2

k = 16.2

30sM9AL-IIb-c-1 - Q14
“

*The volume of wood in a tree (V) varies directly as the height (h) and inversely as the square of the girth (g). The volume of a tree is 144 cubic meters when the height is 20 meters and the girth is 1.5 meters.”**Question:*What is the height of a tree with a volume of 1,000 cubic meters and a girth of 2meters?

123.46 meters

223.46 meters

246.91 meters

206.91 meters

120sM9AL-IIb-c-1 - Q15
Which ofthe following is the correct translation of the variation equation

^{2}?t is directly proportional to a and b

t varies jointly as a, and inversely as the square of b

t varies inversely as a and the square of b

t is jointly proportional to a and the square of b

45sM9AL-IIa-b-1