9th grade experimental science test lessons 1 to 9
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Question 1
Which of the following uses does not belong to sulfuric acid?
1) Leather making
2) Preparation of paint
3) Water disinfection
4) Plastic production
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Question 2
Which of the following atoms does not participate in a covalent bond?
1) 6A
2) 8A
3) 11A
4) 15A
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Question 3
The boiling point of which hydrocarbon below is higher than the others?
1) C7 H16
2) C2 H6
3) C5 H12
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Question 4
A runner has covered the distance between two points which is three kilometers in 10 minutes. What is the speed of this runner?
1) 5 km/h
2) 30 meters per second
3) 15 km/h
4) 5 meters per second
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Question 5
How much force should be applied to a 5 kg body to reach an acceleration of 75 N/kg?
1) 70 newtons
2) 80 newtons
3) 375 newtons
4) 15 newtons
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Question 6
Which of the following landmasses belonged to the large Gondwana landmass?
1) India
2) Europe
3) Greenland
4) North America
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Question 7
Which of the following is true about the oceanic plate?
1) High thickness – young age
2) low density – high age
3) high density – high age
4) Young age – low thickness
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Question 8
Which of the following animals is less likely to be fossilized than others?
1) Mouse
2) Earthworm
3) Shrimp
4) Elephant
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Question 9
Which of the following features does not belong to guide fossils?
1) It belongs to a complex organism
2) It is easy to recognize
3) It is abundant in that area
4) It has a specific time frame
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Question 10
Finding which of the following in an area indicates a hot and humid climate?
1) Fossil coral
2) Salt mine
3) Gypsum mine
4) coal mine
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Question 11
Why does breathing become difficult at high altitudes?
1) Increase in air pressure
2) High air humidity
3) Air pressure reduction
4) decrease in air temperature
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Question 12
If we place a cube-shaped box with a side of 20 cm and a mass of 200 kg on a platform, how much pressure will it exert on that platform?
1) 400 Pascal
2) 500 Pascals
3) 4000 Pascal
4) 1000 Pascal
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Question 13
What does the air pressure inside a ball depend on?
1) Movement of molecules
2) Ball surface size
3) The height of the air above the ground
4) Earth’s gravity
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Question 14
Which of the following machines is not considered a simple machine?
1) Scissors
2) Wheels and gears
3) reel
4) Bicycle
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Question 15
How much force do we need to loosen a screw that is tightened with a torque of 100 Nm using a wrench with a 50 cm handle?
1) 5000 newtons
2) 200 newtons
3) 500 newtons
4) 150 newtons
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Question 16
If we have a machine with a mechanical advantage of 5, how much driving force do we need to lift a weight of 400 newtons?
1) 2000 newtons
2) 100 newtons
3) 80 newtons
4) 40 newtons
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Question 17
How the gears work depends on what?
1) Number of gears
2) Number of laps
3) Far direction
4) All items
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Question 18
When does a ramp have the greatest mechanical advantage?
1) Its height should be higher
2) The length is longer
3) The angle with the horizon should be greater
4) All items
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Question 19
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