CHOOSE THE CORRECT ANSWER
1. Which
one of the following statements decribing the physical properties of the tire
is INCORRECT………
a. It is made of rubber
b. It is strong and durable
c. The material used to make the
tire is flexible and elastic
d. The material used to make the
tire is agood thermal conductor
2. When
you are in the petrol station you always see the notice “ NO SMOKING” This
indicates that fuel …
a. is flammable
b. is corrosive
c. is a pollutant
d. esaly react with oxygen
3. The
statements below are related to properties of materials
I. Aluminium
is lighter than copper
II. Aluminium
is less soluble in water than copper
III. Aluminium is
harder than copper
Why is aluminium more recommended
over copper for making overhead electrical cables?
a. I c. I and III
b. I , II and III d. III
4. Which
one of the following is a chemical change?
a. Iron
covered with paint
b. Frozen
water
c. Magnetization
of iron nail
d. Rotten
garbage
5. When
you are mixing of vinegar and oil, the mixture consists of two layer. This process
is a…
a. chemical reaction c. physical change
b. Physical reaction d. chemical change
6. The
process of converting raw materials to products in a factory is…..
a. mixture c. a combination
b. a chemical reaction d. a physical reaction
7. Below
is a chemical reaction that produces gas, except
a. burning fuel c. photosynthesis
b. respiration d. rusting of iron
8. If
the proportion of hydrogen and oxygen in water is 1 : 8, how many grams of
water and the excess are produced when 4 grams of hydrogen reacts with 16 g of
oxygen
a. 18
g water and 2 g hydrogen excess
b. 18
g water and 2 g oxygen excess
c. 20
g water and 2 g hydrogen excess
d. 20
g water and 2 g oxygen excess.
9. The
following are properties of matter
1.
the particles can move freely
2.
the shape may change
3.
the particles do not have sufficient energy to move
4.
the shape is fixed
which the characteristic of gass?
a. 1 and 2 b. 1 and 4 c.
2 and 4 d. 1 and 3
10. an example
of matter that does not change its volume and shape is …
a. gas b. solid c. Plasma d. Liquid
11. When you spray
your parfume in the corner in your room, you can smell a good odor in your
room, because….
a.
The solid particles change into gass
b.
The gas particles move to any directions and occupy the
room
c.
The liquid partiicles move to any directions spread out
andoccupy the room
d.
The energy of particles moves freely
P Q R
12. The figurte
above shows the arrangement of particles in some matters. Which of the
followingsubstance represented by P , Q and R
a. sugar, hydrogen, water c. Copper , Oil , hydrogen
b. hydrogen , water , sugar d. water, sugar and alcohol
13. A liquid
has density of 1g/ml and soliod with density of 0.24g/ml.Assuming the solid
will not dissolve in the liquid, what will happen if the two are combined in a
beaker?
a. the solid will float
in the liquid
b.the
solid will be suspended half way through the liquid
c. the solid will be
suspended
d. the
solid will be sink in the liquid
14. A crayon
with density of 2 g/ml is broken become two parts
What will the densityo of each
part of the cryon?
a. 0.5 g/ml b. 1 g/ ml c. 2. g/ml d. 4 g/ml
15. If a metal
is heated , it causes the metal expand to all direction. It occurs because
a. the
atom and molecules of the metal became bigger
b. the
atoms and molecules of the metal vibrate faster than usual
c. the
amount of the atoms and molecules of the metal increase
d. the
metal is a solid
16. Study the
figure above!
The experiment using the
Musschenbrroek equipment above shows that the linear expansion of an objectis
influenced by…..
a. The
kind of solid, the shape of object and the change of temperature
b. The
kind of solid, the shape of object , the length of object
c. The
kind of solid, the size of solid and the change of temperature
d. The
kind of solid, the length of solid and the change of temperature
17. figure
above shows a glass bar that is made of
pyrex with α of 0.000004/0C . The length of glass is 0.25 m if the
initial temperature of glass 28 0C and the final
temperature is 68 0C , what
is the expansion of glas
a. 0.004 m b. 0.0004 m c.
0.00004 m d. 0.000004
 |
|||
 |
|||
|
18. The figure
above shows the change state of matter.Which the following undergoes process X
a. the
melting of ice
b. the
boiling of water
c. the
heating of iron
d. formation
of early morning dew
 |
19. Graph above
shows the heating curve of ice.Based on the graph above the state of a
substance at ( b ) during the heating is
a. solid b. solid and liquid c.
liquid d. liquid and gas
20. Use the
graph of number 19.
Based on the graph above, study
the following statement
- when ice is heated the temperature and state of ice change
- the ice temperature does not change when it melts
- the ice begins to become fluid as shown by b
- the matter is in gas state as shown by d
Which statement are related to the
graph is …
a. 1 , 3 and 4 b. 1 , 2 and 3 c. 1 , 2 and 4 d. 2,3 and 4
21. Water with
mass of 200 g is heated from 25 0C up to 450C, if the
specific heat of water is 4200 J/kg0C, the amount of heat needed
is…..
a. 168x105 J b.
168x104 J c. 168x103
J d. 168x102 J
22. Arya did an
experiment in the laboratory to check a solution , he found in his
bathroom.From his experiment , he found the characteristics of the solution as
follows
- it turn red litmus paper blue
- it can transfer electricity
- its pH is 9
Based on the data the solution is
….
a. acid b. salt c. Neutral d. base
23. Shania did
an experiment and found that a litmus paper turned red when it was soaked in a
soft drink. It means that the litmus will also turn red if it is soaked in the
solution of ….
a. pure water b. salt solution c. soap solution d. orange juice
24. The
following table shows the data of several liquids
|
substance
|
pH
|
|
shampoo
|
9
|
|
Gastric juice
|
2
|
|
blood
|
7.4
|
|
Orange juice
|
4
|
Based on
data above , the substance that has strongest base( alkali) is…
a. orange
juice b. blood c. shampoo d. gastric juice
25. When you
get a stomachache, you may use an antacid to relieve it.
How does the antacid work?
a. the
antacid is acidic , so it decreases the pH level of the stomach juice
b. the
antacid is alkalic, so it decreases the pH level of the stomach juice
c. The
antacid is alkalic, so it neutralizes the pH level of stomach juice
d. The
antacid is a paikiller, so it relieves the pain of the stomachache.
0 komentar:
Posting Komentar