10895340
Beschreibung
Quiz von Jessa Garcia, aktualisiert more than 1 year ago
|
Erstellt von Jessa Garcia
vor etwa 7 Jahre
|
|
Frage 1
Frage
Which is true?
Antworten
-
Bees die if they sting
-
Bats can pick up radio signal
-
Penguins can fly
-
Owls can move theor eyes in their heads
Frage 2
Frage
Animals live on land but return to the water to breed.
Antworten
-
Mammals
-
Amphibians
-
Reptiles
-
Crustaceans
Frage 3
Frage
The sun is mostly made up of which gas?
Antworten
-
Hydrogen
-
Oxygen
-
Nitrogen
-
Helium
Frage 4
Frage
On the following metric units which is the smallest
Antworten
-
Millimeter
-
Centimeter
-
Nanometer
-
Micron
Frage 5
Frage
On the following elements which is the most common in the earth's crust?
Antworten
-
Aluminum
-
Silicon
-
Iron
-
Calcium
Frage 6
Frage
Coral are animals that live in
Antworten
-
Deep sea vents
-
Warm waters
-
Cold polar waters
-
All of the above
Frage 7
Frage
A rise in atmoshpheric temperature due to an increase in carbon dioxide, methane and other gases that trap heat in the atmoshpere is called____.
Antworten
-
Coriolis Effect
-
Carbon cycle
-
Green house effect
-
El niño phenomenon
Frage 8
Frage
Suppose that a river has a channel cross section of 25 square meters and a flow speed of 6 meters per second. What is its discharge rate?
Antworten
-
6 m^3/ s
-
25 m^3/ s
-
150 m^3/ s
-
300 m^3/ s
Frage 9
Frage
Which of the following determines the development of soil in a particular place?
Antworten
-
Climate
-
Presence of plant and animal life
-
The type of rock
-
All are factors of soil development
Frage 10
Frage
The [blank_start]ozone layer[blank_end] is the region of the atmoshpere which absorbs harmful UV radiation.
Antworten
-
ozone layer
-
Ionosphere
-
Heteroshpere
-
Thermosphere
Frage 11
Frage
Troposphere is warmest near the Earth's surface because
Antworten
-
Lightning strikes the surface which in turn heats the layer above.
-
The Earth's surface reradiates solar energy which heats the lower troposhere.
-
Radioactive elements in the Earth's crust heat atmosphere abovr the ground.
-
The air is most compressed there by the weight of the atmosphere.
Frage 12
Frage
Fog is a cloud with its base at or very near the ground. The formation of fog generally occurs after the ground has lost heat by
Antworten
-
Convection
-
Transpiration
-
Radiation
-
Evaporation
Frage 13
Frage
Evaporation is the process by which a liquid changes into gas. In this process, liquid water molecules become
Antworten
-
Tiny drops of water
-
Molecules of water vapor
-
Separate atoms of water
-
Atoms of the hydrogen and oxygen
Frage 14
Frage
Thunderstorm is produce by a cumulonimbus cloud and is always accompanied by lightning and thunder. If you hear a clap of thunder a minute after seeing a flash of lightning, the distance between you and the lightning is about
Antworten
-
5km
-
10km
-
20km
-
45km
Frage 15
Frage
Plant cells contain most of the same organelles and structures found in animal cells. The only difference is that plant cells have
Antworten
-
Vacuoles
-
Plasma membrane
-
Mitochondria
-
A cell wall
Frage 16
Frage
An example of compound is
Antworten
-
Mercury
-
Salt
-
Carbon
-
Oxygen
Frage 17
Frage
When matter is changed into another matter having different properties, the type of change is known as
Antworten
-
Physical change
-
Electrical change
-
Chemical change
-
Atomic change
Frage 18
Frage
Baking soda produces carbon dioxide when mixed with
Antworten
-
Sour milk
-
Flour
-
Water
-
Egg
Frage 19
Frage
The bubbling of softdrinks is due to
Antworten
-
Air dissolved in the liquid
-
Carbon dioxide dissolved in liquid
-
Alcohol in the liquid
-
Sugar in the liquid
Frage 20
Frage
A gas which bacteria extract from air and change into a form which plant can use is [blank_start]nitrogen[blank_end].
Antworten
-
nitrogen
-
oxygen
-
argon
-
CO2
Frage 21
Frage
Pressure is the pull or push exerted by a weight on a given unit of area. Since air has weight, it exerts pressure on all objects exposed to it.
Decreasing air pressure, air can be made to move from a [blank_start]high[blank_end] pressure region to a [blank_start]low[blank_end] pressure region.
Antworten
-
high
-
low
-
low
-
another high
-
same
Frage 22
Frage
Clouds are made up of
Antworten
-
water vapor
-
dust particles only
-
tiny droplets of water
-
partially evaporated water
Frage 23
Frage
winds are caused by
Antworten
-
ocean currents
-
the motions of the earth
-
the waving of tree branches
-
the unequal heating of the earth's surface
Frage 24
Frage
The movement of the wind is always from
Antworten
-
north to south
-
east to west
-
low pressure region to high pressure region
-
high pressure region to low pressure region
Frage 25
Frage
Density of a substance is its mass per unit volume.
A piece of brass has a mass of 16.0 g and a volume of 1.9 cm³, Find its density.
Antworten
-
4.2 g/cm ³
-
8.4 g/cm ³
-
0.11875 cm ³
-
12.6 g/cm ³
Frage 26
Frage
Heat is the total kinetic energy of all the molecules of an object and its measured in Calories or
Antworten
-
Newton
-
Joules
-
Centigrade
-
Kelvin
Frage 27
Frage
The measure of the average kinetic energy of molecules is known as
Antworten
-
kinetic energy
-
expansion
-
heat of evaporation
-
temperature
Frage 28
Frage
Which is true about light?
Antworten
-
Light has the property of waves only.
-
Light is produced by excited atoms.
-
Light striking your eyes will not allow you to see.
-
Light energy cannot be measured.
Frage 29
Frage
The color of all objects depends on the light reflected from that color. Color is related to the frequency and ________.
Antworten
-
Doppler Effect
-
Diffraction grating
-
wavelength of light waves
-
primary colors
Frage 30
Frage
All electric currents are streams of moving electrons. The path followed by an electric current is called _____.
Antworten
-
volt
-
conductors
-
potential difference
-
circuit
Frage 31
Frage
A series of circuit is a single pathway for all electrons in a circuit.
A parallel circuit has two or more branches for electrons.
If all Christmas lights go out when one bulb is burned out, the lights are connected in _______.
Antworten
-
parallel circuit
-
series circuit
Frage 32
Frage
Acceleration is the rate of change of velocity per unit time.
A car accelerates uniformly from 15 kph to 45 kph in 10 seconds. The acceleration is [blank_start]3 km/hr-sec[blank_end] .
Antworten
-
3 kph/second
Frage 33
Frage
The distance covered by an object that starts from rest and accelerates uniformly depends upon the square of the time elapsed. d = Vi + (1/2) gt²
An object starts from rest and falls freely under the force of gravity for 5 seconds. What distance has it fallen during this time?
Antworten
-
49 m
-
24.5 m
-
122.5 m
-
1225 m
Frage 34
Frage
The acceleration of a body is directly proportional to the net force acting on the body and is inversely proportional to its mass.
What force would your arm have to exert to a bowling ball with a mass of 5 kg down an alley with an acceleration of 10 m/sec²?
Antworten
-
5 N
-
5 kg
-
50 N
-
50 kg
Frage 35
Frage
The product of the mass and the velocity of a body is called its momentum (momentum = mv).
A gun having a mass of 5 kg fires a 20 g bullet at a speed of 500 m/sec. Find the recoil velocity of the gun.
Antworten
-
2 m/sec
-
20 m/sec
-
0.20 m/sec
-
200 m/sec
Frage 36
Frage
Work in a physical science is equal to the force times the displacement in the direction of the force.
(W = Force x displacement)
A crate is pushed 5 meters on a level floor. The frictional force is determined as 300 N. Calculate the work performed.
Antworten
-
60 N-m
-
15 N-m
-
150 N-m
-
1500 N-m
Frage 37
Frage
Potential energy or energy of position is the product if the weight if an object and the height to which the object is elevated.
A machine weighing 5000 N is raised onto the roof of a building 50 m high, The increase in potential energy is [blank_start]2.5 x 10^5 Joules[blank_end].
Antworten
-
2.5 x 10^5 Joules
-
2.5 x 10^5 Newton
-
2.5 x 10^4 Joules
-
2.5 x 10^4 Newton
Frage 38
Frage
A rocket with a mass of 1000 kg is fired vertically upward with an initial velocity of 100 m/sec. Calculate its potential energy when it reaches the maximum height.
Antworten
-
5 x 10 ^ 5 Joules
-
5 x 10 ^ 5 N-m
-
5 x 10 ^ 6 Joules
-
5 x 10 ^ 6 N-m
Frage 39
Frage
A substance that gives up hydrogen ions to water to form hydronium ions is called _____.
Antworten
-
water
-
strong acid
-
salt
-
weak acid
Frage 40
Frage
The radius of a gold atom is 144 picometer. Express this radius in centimeter.
Antworten
-
1.44 x 10 ^ -5 cm
-
1.44 x 10 ^ -6 cm
-
1.44 x 10 ^ -7 cm
-
1.44 x 10 ^ -8 cm
Frage 41
Frage
It is the property of matter that is independent of its surrounding condition and position.
Antworten
-
weight
-
mass
-
density
-
volume
Frage 42
Frage
An example of a substance that cannot be further decomposed by ordinary chemical means is ______.
Antworten
-
air
-
water
-
salt
-
iron
Frage 43
Frage
A substance that can be further simplified may either be
Antworten
-
a mixture or an atom
-
a mixture of a compound
-
an element or a mixture
-
an element or a compound
Frage 44
Frage
An example of chemical change is the
Antworten
-
burning of wood
-
breaking of a glass bottle
-
melting of an ice cube
-
sawing of a piece of wood
Frage 45
Frage
Chemical reaction may involve all of the following except
Antworten
-
separation of the molecules in a mixture
-
breaking down of compounds into elements
-
combination of atoms of elements to form a molecule
-
reaction of a compound and an element to form a new compound and a new element
Frage 46
Frage
Carbon - 14 has a half-life of approximately [blank_start]5600 years[blank_end]
Antworten
-
5600 years
-
5600 days
-
5000 years
-
600 years
Frage 47
Frage
Which of the following has 4 significant figures?
Antworten
-
1.68
-
168.0
-
0.0168
-
0.00168
Frage 48
Frage
An orbital can NEVER be occupied by
Antworten
-
1 electron
-
2 electrons
-
3 electrons
-
0 electron
Frage 49
Frage
A positively-charged ion has:
Antworten
-
more protons than electrons
-
more electrons than protons
-
an equal number of neutrons and electrons
-
an equal number of protons and electrons
Frage 50
Frage
Sound is a form of energy produced by the vibration of matter. When an object produces sound, the vibration travels through space as
Antworten
-
sound energy
-
molecules
-
sound wave
-
radio wave
Möchten Sie mit GoConqr kostenlos Ihre eigenen Quiz erstellen? eigenen Mehr erfahren.