Maths Group11
5.1K subscribers
329 photos
3 videos
1.62K files
410 links
The main purposes of this channel are to:
1. πŸ“ Provide various Mathematics questions and exercises.
2. πŸ“š Share and publish different educational books.
3. πŸ“– Provide useful short notes and study materials.

For more, contact us through: @Fikiru_Asnake
Download Telegram
If f(x) = π² +1, then what is the value of f'(3)?
Anonymous Quiz
18%
3
23%
2
53%
0
5%
1
❀5
What is the equation of the tangent line to the graph of f(x) = 3xΒ² + 4x -5 at (1, 2)?
Anonymous Quiz
24%
10x- y - 8 = 0
38%
-10x + y +8 = 0
23%
-10x - y - 8 = 0
15%
10x + y -8 = 0
πŸ‘2
Metal A has a coefficient of linear expansion that is three times the coefficient of linear expansion of metal B. How is their coefficient of area expansion compared?
Anonymous Quiz
16%
The coefficient of area expansion of metal A is 2 times that of B.
25%
The coefficient of area expansion of metal A is 1.5 times that of B.
21%
They have the same coefficient of area expansion.
38%
The coefficient of area expansion of metal A is 3 times that of B.
When hot and cold objects are placed in contact, the hot one loses energy. Does this violate energy conservation?
Anonymous Quiz
64%
Yes
36%
No
The following active voice change into passive voice.

1. I am reading the books.
2. She baked the cake.
3. The band sang the song.
4. Mom is washing the clothes.
5. The construction workers were renovating the house.
6. He completed the job.
7. She sent the message.
8. The chef cooked the meal.
9. They arrived after the work had been finished.
10. The new team will manage the project.
2000 J of heat leaves the system and 2500 J of work is done on the system. What is the change in internal energy of the system?
Anonymous Quiz
27%
4500J
52%
500J
15%
-500J
6%
-4500J
The temperature of a silver bar rises by 10Β°C when it absorbs 1.23kJ of energy by heat. The mass of the bar is 525g. What is the specific heat capacity of silver in J/Kg.K ?
Anonymous Quiz
22%
167
43%
0. 167
13%
0. 234
22%
234
πŸ™5
What is the quantity of heat required to raise the temperature of 1 g of ice from βˆ’10Β°C to 110Β°C? Use specific heat capacity of ice, water and steam. Also use latent heat of fusion and vaporization from text book.
Anonymous Quiz
26%
3053.6 J
37%
3343.4 J
26%
3033 J
12%
4317 J
Maths Group11
The following active voice change into passive voice. 1. I am reading the books. 2. She baked the cake. 3. The band sang the song. 4. Mom is washing the clothes. 5. The construction workers were renovating the house. 6. He completed the job. 7. She sent the…
Answer:

1. The books are being read by me.
2. The cake was baked by her.
3. The song was sung by the band.
4. The clothes are being washed by Mom.
5. The house was being renovated by the construction workers.
6. The job was completed by him.
7. The message was sent by her.
8. The meal was cooked by the chef.
9. After the work had been finished, they arrived.
10. The project will be managed by the new team.

Thank you for reading!
❀4
If a force of 2N makes an angel of 37Β° with a force of 5N. The magnitude of resultant force is (cos 37Β° = 0.8)
Anonymous Quiz
15%
45N
43%
3√5 N
31%
6.6N
10%
√13 N
❀1πŸ‘1
Which one process is manufacturing of ammonia?
Anonymous Quiz
10%
Ostwald
8%
Contact
68%
Haber
14%
All
πŸ‘3πŸ”₯1
Rate of reaction depends on:
Anonymous Quiz
14%
Concentration
8%
Temperature
5%
Nature of reactant
73%
All
Math's Weekly Exam on grade 12 unit 2.pdf
1.1 MB
Mathematics questions for Grade 12
Unit 2
πŸ”₯6
SAT questions about word analogy for grade 12 students.

I choose the best answer!
1. HAND : FINGER :: FOOT : ?
    A) TOE
    B) LEG
    C) ANKLE
    D) SHOE
2. SUN : SOLAR :: MOON : ?
    A) LUNAR
    B) NIGHT
    C) DARK
    D) STAR
3. BIRD : WING :: FISH : ?
    A) SCALE
    B) FIN
    C) WATER
    D) GILLS
4. HAPPY : JOYFUL :: SAD : ?
    A) ANGRY
    B) DEPRESSED
    C) TIRED
    D) SLEEPY
5. TREE : FOREST ::  FLOWER : ?
    A) GARDEN
    B) PLANT
    C) SEED
    D) STEM
6. DOCTOR : PATIENT :: TEACHER : ?
    A) CLASSROOM
    B) STUDENT
    C) BOOK
    D) SCHOOL
7. PAINTBRUSH : ART ::  HAMMER : ?
    A) WOOD
    B) NAIL
    C) CARPENTRY
    D) HOUSE
8. CLOCK : TIME ::  THERMOMETER : ?
    A) HEAT
    B) TEMPERATURE
    C) WEATHER
    D) COLD
9. KEY : LOCK ::  SWITCH : ?
    A) LIGHT
    B) DOOR
    C) ELECTRICITY
    D) WALL
10. COLD : ICE ::  HOT : ?
    A) FIRE
    B) SUN
    C) LAVA
   D) HEAT
11. WRITER : PEN ::  SCULPTOR : ?
    A) CLAY
    B) MARBLE
    C) CHISEL
    D) ART

Join and share our channel!
@maths_group11
@maths_group11
❀9πŸ€”1
A certain gas expands in volume from 2.0 L to 6.0 L at constant temperature. What is the work done by the gas if it expands at constant pressure of 1.2 atm?
Anonymous Quiz
27%
490 J
43%
-490 J
29%
972.48 J
2%
-972.8 J
❀3
A gas expands and does work on the surroundings equal to 279 J. At the same time, it absorbs 216 J of heat
from the surroundings. What is the change in energy of the system?
Anonymous Quiz
30%
63 J
52%
-63 J
15%
495 J
3%
-495 J
πŸ₯°4❀1
Which of the following is a power house of the cell?
Anonymous Quiz
3%
Ribosome
12%
Nucleas
78%
Mitochondria
7%
Cell membrane
❀1
The hydrogenation of oil at high pressure in presence of nickel catalyst produce___.
Anonymous Quiz
25%
Carboxylic acid
49%
Fats
20%
Aldehyde
6%
Alcohol
❀3