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Duplicate of SCIENCE QUIZ CONTEST 2023 Flashcards | StudBud
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Duplicate of SCIENCE QUIZ CONTEST 2023
Duplicate of SCIENCE QUIZ CONTEST 2023
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1
Which among the particles is positively charged?
Gamma Particles
Electrons
Beta Particles
Alpha Particles
2
An object is falling under the influence of gravity, and with no air-resistance. Which quantity is constant?
acceleration
Velocity
Speed
pressure
3
On the moon
Your mass and weight both change
Your weight changes but your mass stays the same
Mass changes but your weight stays the same
Your mass and weight stay the same
4
A red filter will only allow
Only red light
black light through
White light through
All colours through except red
5
Which scientist is well known for his theory of relativity?
Galileo
Albert Einstein
Newton
Marconi
6
Which are the largest type of microbe?
Protists
Viruses
Bacteria
Fungi
7
Who discovered Telephone?
Willam Right
J C Bose
Alfred Nobel
Graham Bel
8
Respiration is the process by which every cell in plants and animals make
Breathe in oxygen
Energy from water + oxygen
Energy from glucose + oxygen
energy from Lactic acid and carbon dioxide
9
Which one of the following has high energy:
Carbohydrates
Fibre
Lipids (fats)
Proteins
10
What is the chemical symbol for Sodium?
So
Na
S
No
11
What kind of eclipse do we have when the moon is between the sun and the earth?
Solar Eclipse
All the above
Mars Eclipse
Lunar Eclipse
12
How could be separate ink from water?
Chromatography
Distillation
Filtration
Evaporation
13
What is better about universal indicator than litmus paper?
Gives a better indication of pH
It is a liquid
Easier to use
It is cheaper
14
A radiator heats a room by:
Radiation
Conduction
heat
Convection
15
What makes stainless steel stainless?
sodium
iron
Iodine
chromium
16
What type of food is essential to our diets although it can not be digested?
Fibre
Carbohydrates
Vitamin C
Iron
17
What is the chemical symbol for Sodium?
So
Sm
S
Na
18
Which parts are found in BOTH plants and animal cells?
Chloroplasts and cell wall
Cytoplasm, nucleus and cell wall.
Cell membrane and nucleus
Cytoplasm and Vacuole
19
What is the name of the first American physicist to win two Nobelprizes?
Rontgen
J S Kilby
C V Raman
John Bardeen
20
Earth is located in which galaxy?
Milkyway Galaxy
Lunar System
Solar System
Andromeda galaxy
21
A magnifying glass is what type of lens?
cylindrical
concave
spherical
convex
22
An object is falling under the influence of gravity, and with no air-resistance. Which quantity is constant?
distance
acceleration
speed
velocity
23
What things are needed for rusting to occur?
Water and oil
Water and warmth
Nitrogen and water
Oxygen and water
24
The arrows in a food chain show:
What eats what
Who eats who
Flow of animals
The flow of energy
25
Electric resistance is typically measured in what units?
Ohm
Ampere
Joule
Volt
26
What type of energy is stored in a candle?
Chemical energy
Light energy
Battery energy
Potential energy
27
In Einstein’s theory of relativity, E=MC2 , what does ‘C’ stand for?
critical angle
Chemical
refractive index
speed of Light in Vacuum
28
Red blood cells are specialised for their job of carrying gases by:
Being red
Having a large surface area
Lasting one month
Having a small surface area
29
We hear sounds because
sounds walks to the ears
Our eardrum vibrates
Electric signals pass through the air to our ear
Sound waves pass through our skulls
30
You are advised to put chains on your wheels in winter to:
increase force
Increase friction
Save your tyres from the ice
Decrease friction
31
Iron is what type of magnetic material?
non-magnetic
diamagnetic
ferromagnetic
paramagnetic
32
Which organ stores bile?
Kidneys
Stomach
Heart
Liver
33
If the distance between two objects, each of mass 'M', is tripled, the force of attraction between the two objects is
1/2 the original force
unchanged
1/3 the original force
1/9 the original force
34
Which quantity of a body describes “How fast an object is moving, and in what direction”.
velocity
speed
acceleration
free fall
35
How does Carbon dioxide enter leaves for photosynthesis?
Through pores on the bottom of the leaves
Through the leaves’ veins
Through the roots
through the chloroplasts
36
Which year was celebrated as International year of Physics?
2005
2008
2007
2010
37
The force acting between two point charges can be computed usingwhich of the following laws?
Ampere's Law
Coulomb's Law
Ohm's Law
Newton's Second Law.
38
If we can neutralise a wasp sting with vinegar, is it’s stingan acid or an alkali?
An alkali.
Neither
An acid.
Neutral.
39
To the nearest minute, how long does it take light to travel from the Sun to the Earth?
7 minutes
9 minutes
8 minutes
10 minutes
40
The full form of NASA is
National Aeronautics and Space Admission
Natural Aeronautics and space Admiration
Nationl Aeronautics and Space Administration
National Aeroplane and space Admission
41
The common name for a substance found in the kitchen has a chemical name ‘ethanoic acid’
milk
mango juice
vinegar
curd
42
The wave nature of light is demonstrated by which of the following?
the photoelectric effect
color
diffraction
the speed of light
43
In the large intestine
Nutrients are absorbed into the blood
digestion takes place
Water is reabsorbed into the body
Faeces is stored
44
What are fossil fuels made from?
Dead animals
Dead plants and animals
oil
Dead plants
45
A virtual image can be formed by one or more of the following single mirrors?
Convex Spherical Mirror
concave spherical mirror
all of the above
plane mirror
46
Current is measured in:
Volts
Ohms
Newtons
Amps
47
If a circuit has a current of 2 amps and a voltage of 6 volts, what is it's resistance?
3 Ohms
0.333 Amps
0.333 Ohms
3 Amps
48
Einstein was awarded Nobel Prize for
Explanation for Photo electric effect
Discovering the formula, E=mc2
Theory of relativity
Nano technology
49
The tar in cigarettes can lead to:
Lung cancer
Thickening of the veins
Pneumonia
Blood clots
50
When energy gets transferred from one type to another some gets wasted. Most wasted energy is usually in the form of:
Kinetic energy
Sound energy
light energy
Thermal energy
51
Physical digestion occurs in the
Only the mouth
Mouth and intestines
Stomach and mouth.
only stomach
52
Nitrous oxide is better known as?
laughing gas
crying gas
Hiccups gas
nitrogen dioxide
53
Electric current may be expressed in which one of the following units?
ohms/second
joules/coulomb
coulombs/volt
coulombs/second
54
Lead has a the chemical symbol Pb. What does the Pb stand for?
plum
plumbum
potasium
permanganate
55
What is the chemical symbol for Sodium?
Sm
S
So
Na
56
What did Alfred Nobel, of Nobel Peace Prize fame, invent in 1866?
Telephone
Dynamite
aeroplane
Bicycle
57
Two acids you would find in your home are:
Vinegar & toilet cleaner
Organge juice and toothpaste
Lemon juice & soap
Lemon juice & vinegar
58
Why does a plant convert glucose made in photosynthesis into starch?
Because starch is insoluble
Because starch is soluble
Because glucose in insoluble
To get energy
59
How many stomachs do cows have?
3
4
5
6
60
In an animal cell, which part is known as the powerhouse?
Cell membrane
Nucleus
Ribosomes
Mitochondria
