WorksheetsScientific Method and Astronomy Quiz
Total questions: 100
Worksheet time: 50mins
Which of the following is NOT one of the four steps of the scientific method?
Formulation of problem
Observation & experiment
Hypothesis testing
Testing the interpretation
What is the term for a relationship or regularity between naturally occurring phenomena?
Hypothesis
Law
Theory
Experiment
Which constellation is used to locate the North Star?
Orion
Ursa Major
Polaris
Cassiopeia
Who described the universe as having the Earth at the center with the sun, stars, and planets revolving around it?
Copernicus
Kepler
Newton
Ptolemy
Which scientist developed the heliocentric model of the universe?
Ptolemy
Copernicus
Kepler
Newton
What did Kepler discover about the paths of the planets around the sun?
They are circular
They are ellipses
They are parabolas
They are hyperbolas
Newton's law of gravity explains which of the following phenomena?
The occurrence of two high tides and two low tides in coastal areas
The elliptical orbits of planets
The daily rising and setting of celestial bodies
The irregular movements of planets
Which of the following is NOT an SI unit?
Meter
Second
Kilogram
Pound
What is the correct representation of a measurement in scientific notation?
A value between 1 & 10 times a power of 10
A value between 0 & 1 times a power of 10
A value between 10 & 100 times a power of 10
A value between 0 & 100 times a power of 10
Which of the following quantities has both magnitude and direction?
Scalar quantities
Vector quantities
Speed
Distance
What is the formula for the speed of a moving object?
s = d / t
s = t / d
s = d * t
s = t * d
What is the rate of change of velocity called?
Displacement
Velocity
Acceleration
Force
What is the acceleration due to gravity for objects in free fall at the earth's surface?
9.8 m/s
9.8 m/s²
9.8 m/s³
9.8 m/s⁴
Which of the following is Newton's first law of motion?
Law of inertia
Law of resultant force
Law of reciprocal action
Law of gravity
What is the SI unit of force?
Joule
Watt
Newton
Kilogram
According to Newton's third law of motion, for every action force there is an equal but opposite:
Inertia
Displacement
Reaction force
Acceleration
What is the formula for work done against gravity?
W = Fd
W = mg
W = mgh
W = P/t
What is the SI unit of power?
Joule
Watt
Newton
Kilogram
What does the law of conservation of energy state?
Energy can be created and destroyed
Energy can be created but not destroyed
Energy cannot be created or destroyed
Energy can be destroyed but not created
What is the formula for kinetic energy (KE)?
KE = 1/2mv^2
KE = mgh
KE = mc^2
KE = pVg
Which type of energy is associated with an object's position?
Kinetic Energy
Potential Energy
Rest Energy
Internal Energy
What is the formula for gravitational potential energy?
E = 1/2mv^2
E = mgh
E = mc^2
E = pVg
What is the measure of the tendency of a moving object to continue in motion along a straight line?
Angular Momentum
Linear Momentum
Potential Energy
Kinetic Energy
What does the law of conservation of momentum state?
The total energy of a system remains constant.
The total momentum of a set of objects remains the same in the absence of outside forces.
The total angular momentum of a rotating object remains the same.
The total mass of a system remains constant.
What is the formula for angular momentum?
L = Iω
L = mv
L = mgh
L = mc^2
What is the temperature at which water freezes on the Fahrenheit scale?
0°C
32°F
100°C
212°F
What is the formula to convert Celsius to Kelvin?
T_K = T_C + 273
T_K = T_C - 273
T_K = (5/9)(T_F - 32)
T_K = (9/5)(T_F + 32)
What is the SI unit of heat?
Joule
Pascal
Kelvin
Newton
What is the formula for the specific heat capacity (or specific heat) of a substance?
Q = mcΔT
Q = mL
Q = pVg
Q = 1/2mv^2
What is the formula for the heat of fusion of a solid?
Q = mcΔT
Q = mL
Q = pVg
Q = 1/2mv^2
What is the formula for the density of a substance?
ρ = m/V
ρ = mgh
ρ = mc^2
ρ = pVg
What is the SI unit of pressure?
Pascal
Joule
Newton
Kelvin
What is the formula for the buoyancy force on an object in a fluid?
F = Mg = pVg
F = mgh
F = mc^2
F = 1/2mv^2
Which law states that the volume of a gas is inversely proportional to its pressure when the temperature is held constant?
Boyle's law
Charles's law
Ideal gas law
Ohm's law
What is the SI unit of electric charge?
Coulomb (C)
Volt (V)
Ohm (Ω)
Ampere (A)
According to Ohm's law, what is the relationship between current (I), voltage (V), and resistance (R)?
V = IR
I = VR
R = IV
P = IV
What is the unit of potential difference?
Volt (V)
Coulomb (C)
Ohm (Ω)
Ampere (A)
Which elementary particle is positively charged?
Proton
Neutron
Electron
Photon
What is the formula for the power of an electric current?
P = IV
P = IR
P = V/R
P = I^2R
What is the rate of flow of charge from one place to another called?
Electric current
Potential difference
Resistance
Power
What is the electrical potential energy per coulomb of charge called?
Potential difference
Electric current
Resistance
Power
What is the force field around a magnet called?
Electric field
Gravitational field
Magnetic field
Electromagnetic field
According to Faraday's law, what is the effect of producing an induced current known as?
Direct current
Alternating current
Electromagnetic induction
Magnetic field
What type of current flows in one direction?
Alternating current
Direct current
Electromagnetic current
Magnetic current
What device converts electrical energy at one voltage and current to another voltage and current?
Electric motor
Electric generator
Transformer
Battery
What type of waves are mechanical waves in which the particles of the matter through which they pass move perpendicular to the wave direction?
Longitudinal waves
Transverse waves
Standing waves
Sound waves
What is the unit of frequency?
Hertz (Hz)
Decibel (dB)
Meter (m)
Second (s)
What is the speed of sound in sea-level air at ordinary temperatures?
300 m/s
343 m/s
400 m/s
500 m/s
What is the apparent change in frequency of a wave due to the relative motion of the listener and the source of the sound called?
Standing wave
Longitudinal wave
Doppler effect
Transverse wave
What is the fundamental tone?
The highest frequency produced when an object vibrates
The tone produced when an object vibrates as a whole
The tone produced when an object vibrates in segments
The tone produced by a source whose frequency is equal to one of its natural frequencies of vibration
What is resonance?
The ability of an object to be set in vibration by a source whose frequency is equal to one of its natural frequencies of vibration
The change in direction of a wave when it strikes an obstacle
The separation of a beam of white light into its various colors or frequencies
The ability of waves to bend around the edge of an obstacle
What are electromagnetic (EM) waves?
Waves that consist of linked electric and magnetic fields traveling at the speed of light
Waves that are produced when an object vibrates as a whole
Waves that are produced by a source whose frequency is equal to one of its natural frequencies of vibration
Waves that change direction when they enter a medium in which their speed changes
What is the index of refraction?
The ratio between the speed of light in free space and its speed in a medium
The change in direction of a wave when it strikes an obstacle
The ability of waves to bend around the edge of an obstacle
The separation of a beam of white light into its various colors or frequencies
What is the function of the optic nerve?
It carries nerve impulses from the retina to the brain
It changes the shape of the lens
It controls the amount of light entering the pupil
It focuses incoming light onto the retina
What is the atomic number?
The number of protons in an atom
The number of neutrons in an atom
The number of electrons in an atom
The number of isotopes in an element
What are isotopes?
Atoms of the same element that differ in the number of neutrons in their nuclei
Atoms of different elements that have the same number of protons
Atoms of the same element that have the same number of neutrons
Atoms of different elements that have the same number of neutrons
What is a nuclide represented by in terms of chemical symbol, atomic number, and mass number?
X, Z, A
Z, X, A
A, X, Z
X, A, Z
Which type of radioactive decay involves the emission of a helium nucleus?
Beta decay
Gamma decay
Alpha decay
Positron emission
What is the unit used to measure the biological effect of radiation?
Joule
Sievert
Watt
Hertz
What is the binding energy per nucleon used to determine?
The total mass of the nucleus
The stability of the nucleus
The number of protons in the nucleus
The number of neutrons in the nucleus
What is the process called when a heavy nucleus splits into two medium-sized nuclei?
Nuclear fusion
Nuclear fission
Radioactive decay
Electron capture
According to Einstein's Quantum Theory of Light, what is the relationship between energy (E) and frequency (f)?
E = hf
E = h/f
E = f/h
E = h + f
What is the de Broglie wavelength formula for a particle of mass m and speed v?
λ = h/mv
λ = mv/h
λ = h/vm
λ = v/hm
What principle states that it is impossible to know both the exact position and momentum of a particle at the same time?
Quantum theory
Uncertainty principle
Planck's constant
Matter waves
What are the various frequencies of light given off by an excited atom called?
Quantum levels
Spectral series
Energy levels
Photon emissions
What identifies the specific energy level of an electron in an atom?
Atomic number
Mass number
Quantum number
Planck's constant
Which of the following cannot be broken down or changed into another element by chemical means?
Element
Compound
Mixture
Solution
What law states that elements in a compound are present in a specific ratio by mass?
Law of definite proportions
Law of conservation of mass
Law of multiple proportions
Law of constant composition
What type of mixture has constituents that are not uniformly mixed and are easy to separate?
Homogeneous
Heterogeneous
Solution
Colloid
What does a chemical formula indicate?
The number of atoms and types of elements in a compound
The physical state of a compound
The temperature at which a compound melts
The color of a compound
What is the term for elements that have little tendency to react chemically?
Active elements
Inactive elements
Halogens
Alkali metals
What is the periodic table arranged in order of?
Atomic mass
Atomic number
Density
Melting point
What type of bond is formed when one or more pairs of electrons are shared by two or more atoms?
Ionic bond
Covalent bond
Metallic bond
Hydrogen bond
What is the substance present in larger amount in a solution called?
Solute
Solvent
Concentration
Solubility
What is the maximum amount of a substance that can be dissolved in a given quantity of a particular solvent at a given temperature called?
Solubility
Concentration
Solvent
Solute
What is a saturated solution?
A solution that contains the maximum amount of solute possible at a given temperature.
A solution that contains more dissolved solute than is normally possible at a given temperature.
A solution that contains less dissolved solute than is normally possible at a given temperature.
A solution that contains no solute.
What is the pH value of a neutral solution?
Less than 7
More than 7
Exactly 7
Between 7 and 14
Which of the following is a source of water pollution?
Industrial pollutants
Natural fertilizers
Pure water
Clean air
What does a chemical equation express?
The results of a chemical change
The physical state of a substance
The color of a substance
The taste of a substance
What is an exothermic reaction?
A chemical change that absorbs energy
A chemical change that gives off energy
A chemical change that involves electron transfer
A chemical change that involves the loss of electrons
What is the role of a catalyst in a chemical reaction?
It increases the temperature of the reaction.
It changes the rate of a chemical reaction without being permanently changed.
It decreases the concentration of reactants.
It increases the concentration of products.
What is organic chemistry?
The chemistry of carbon compounds
The chemistry of all elements other than carbon
The chemistry of inorganic compounds
The chemistry of metals
What are hydrocarbons composed of?
Carbon and oxygen
Carbon and hydrogen
Hydrogen and nitrogen
Oxygen and nitrogen
What is the process called in which crude oil is heated and its vapors are collected and condensed at progressively higher temperatures?
Photosynthesis
Fractional distillation
Metabolic reaction
Evaporation
Which of the following is an example of a monosaccharide?
Sucrose
Lactose
Glucose
Maltose
What is the main catalyst for photosynthesis?
Oxygen
Chlorophyll
Carbon dioxide
Water
What is the envelope of air surrounding the earth called?
Hydrosphere
Atmosphere
Stratosphere
Troposphere
Which layer of the atmosphere is the lowest and densest?
Stratosphere
Mesosphere
Troposphere
Thermosphere
What is the term for the temperature at which air containing water vapor cools and condenses to form dew, fog, or clouds?
Boiling point
Dew point temperature
Evaporation point
Saturation point
What is the study of weather called?
Meteorology
Climatology
Hydrology
Geology
What is the greenhouse effect?
The trapping of heat by atmospheric CO2 and water vapor
The reflection of sunlight by the earth's surface
The cooling of the earth by atmospheric gases
The absorption of sunlight by the ocean
What is a continental shelf?
A gently sloping surface extending seaward from a continental margin
A steeply sloping surface extending from the continental shelf to the ocean floor
The nearly level area of the ocean floor extending from the seaward margin of the continental rise
A sudden increase in slope at the base of the continental slope
Which ocean currents are mentioned as examples in the text?
Gulf stream and California current
Atlantic current and Pacific stream
Indian stream and Arctic current
Antarctic current and Mediterranean stream
What are the three main reasons for the worldwide energy problem mentioned in the text?
Increase in demand, depletion of nonrenewable energy sources, damage to the environment
Decrease in demand, increase in renewable energy sources, damage to the environment
Increase in demand, increase in nonrenewable energy sources, improvement of the environment
Decrease in demand, depletion of renewable energy sources, improvement of the environment
What is the main constituent of natural gas?
Methane
Carbon dioxide
Nitrous oxide
Chlorofluorocarbons
Which alternative energy source is described as the fastest growing renewable energy source?
Wind Energy
Solar Energy
Nuclear Energy
Geothermal Energy
What are the two most abundant elements of the earth's crust?
Oxygen and silicon
Iron and nickel
Carbon and hydrogen
Magnesium and calcium
What is the temperature range believed to be inside the earth?
375°C to 5000°C
100°C to 2000°C
500°C to 3000°C
200°C to 4000°C
Which type of rock is formed from the cooling of molten state?
Sedimentary rocks
Metamorphic rocks
Igneous rocks
Chemical rocks
What is the process called when rocks are broken down by physical disintegration?
Chemical weathering
Mechanical weathering
Erosion
Sedimentation
