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WorksheetsFINAL EXAM Multiple Choice
Total questions: 50
Worksheet time: 25mins
What is the purpose of using significant figures in measurements?
To show how accurate a measurement is
To confuse scientists
To make measurements look bigger
As a form of entertainment
Which is the correct way to write the number 720,000,000 in scientific notation?
7.2 x 108
720 x106
7.2 x 10⁻8
7.2 x 10⁻10
What should you do at the end of a laboratory experiment?
Wash your hands
Clean up your lab station and wash your hands
Read the directions to see what you should have done
Dump everything down the drain and throw glassware in thesink
In the metric system, what is the basic unit of volume?
Kilogram
Liter
Meter
Celsius
What is an example of a quantitative observation?
The apple has a mass of 155.2 g
The apple is red
The apple has a round shape
The apple tastes sweet
What is the percent error of a reaction that took 35.2 minutes when the accepted value is 39.8 minutes?
4.6%
11.6%
13.1%
How am I suppose to figure this out?
An element has 52 protons, 47 neutrons, and 54 electrons. What is the charge AND mass of this ion?
+2, 106
-2, 99
+2, 99
-7, 106
How many valence electrons would a neutral atom of Gallium (Ga) contain?
3
4
5
8
Which elements are more likely to become anions?
Elements in groups 1
Elements in group 4
Elements in groups 7
Elements in group 8
What is region C?
Mair
Giants
Super giants
White dwarfs
Which of the following processes occur naturally in the stars?
Radioactive decay
Fission
Fusion
Fizon
Which of the following correctly describes how to measure the amplitude of a wave?
Measure from the top of the crest to the equilibrium position
Measure from the bottom of the trough to the equilibrium position and times two
Measure from the crest to another crest
Measure from the bottom of the trough to the top of the crest
Which of the following is an example of a Transverse wave wave?
Light waves
Ultraviolet waves
Radio waves
All of the choices
If the frequency of a wave decreases, what happens to its wavelength, assuming wave speed remains constant?
The wavelength increases
The wavelength decreases
The wavelength remains the same
The wavelength doubles
Which type of electromagnetic wave has the longest wavelength?
Radio waves
Microwaves
Visible light
Gamma rays
Which of the following colors of the visible spectrum has the shortest wavelength?
Red
Orange
Yellow
Blue
What happens to the wavelength when the source of the sound wave is moving towards the observer?
The wavelength gets longer, or a Red shift occurs
The wavelength gets shorter, or Blue shift occurs
Nothing changes , or an Orange shift occurs
The wavelength gets shorter, or Green shift occurs
How quickly the velocity of an object changes is known as
Acceleration
Mass
Force
Friction
The unit for force is
m/s
m/s2
kg*m/s
N
Which of the following objects would have the no momentum?
A large 18-wheeler truck going 70 miles per hour on the highway
A large 18-wheeler truck parked on the highway
A marble rolling down the hallway
A marble falling off the table
What is the momentum of a truck that has a mass of 100 kg is moving with a velocity of 15 m/s on the road?
115 kg m/s
1500 kg m/s
150 kg m/s
85 kg m/s
Which of the following best describes an inelastic collision?
a. Objects stick together, kinetic energy is conserved
b. Objects bounce apart, kinetic energy is lost
c. Objects stick together, kinetic energy is lost to sound or heat
d. Objects bounce apart, kinetic energy is conserved
Which of the following statements best describes Kepler’s 1st Law of planetary motion?
Planets move in circular orbits around the Sun.
The speed of a planet in orbit is constant.
Planets move in elliptical orbits with the Sun at one focus.
The time it takes for a planet to orbit the Sun is related to its distance from the Sun.
According to Kepler’s 2nd Law, what happens as a planet moves closer to the sun in its orbit?
The planet moves slower
The planet moves faster
The planet moves at the same speed
The planet stops moving
Which of the following is included in the definition of a mineral?
A type of rock that formed from magma
A liquid found in Earth’s crust
A naturally occurring, inorganic solid with definite chemical composition
An organic material formed in plants
What property is measured by the Mohs Scale? (Which of the following did you use a scale to compare?)
Density
Hardness
Cleavage
Magnetism
What is the process called when rocks change form due to heat and pressure?
Weathering
Erosion
Metamorphism
Sedimentation
Which of the following is the process by which wind, water, ice, or gravity wear away and move soil and rock particle
Weathering
Erosion
Metamorphism
Sedimentation
Which of the following layers of the earth would have the highest temperature?
Inner core
Outer core
Lithosphere
Asthenosphere
What is relative dating?
A way to determine which geological time period is better
A way to determine the exact age of a fossil or rock layer
A way to compare fossils or rock layers to determine chronological order
A way to determine the age of dinosaur fossils.
Which is the correct order of age for the below diagram starting with the oldest to the youngest rock
A, D, B, C, E
E, D, C, B, A
E, C, B, D, A
A, B, C, D, E
In a convergent boundary,
the plates will move toward one another to form a mountain or volcano
the plates will move away from one another to form a rift or valley
the plates will slide past one another to cause a fault
the plates will rise to a higher layer in the Earth’s crust.
The energy stored in bonds of your food is an example of which of the following types of energy?
Chemical Energy
Nuclear Energy
Kinetic Energy
Thermal Energy
A rubber band stretched as far as it can go is an example of which type of energy?
Gravitational potential energy
Elastic potential energy
Nuclear energy
Electrical energy
Kinetic energy depends on which two factors?
Mass and height
Mass and velocity
Velocity and acceleration
Acceleration and force
Coulomb’s Law describes the relationship between:
Electric field and current
Magnetic field and force
Electric charges and the forces between them
Energy and power
Which of the following describes an magnetic field?
The flow of electrons in a conductor
The area around an object where magnetic forces are exerted
The alignment of magnetic dipoles in a material
The transformation of mechanical energy into electrical energy
Which device converts mechanical energy into electrical energy?
Motor
Electromagnet
Generator
Resistor
What happens when an electric current flows through a wire?
It disappears.
It creates a circular magnetic field around the wire.
It generates a Sankey diagram.
It converts energy into potential energy.
Which of the following ways can kinetic energy be increased?
Increasing the velocity
Decreasing velocity
Decreasing temperature
Decreasing potential energy
What causes the electric force between two charges to increase?
Decreasing the magnitude of the charge of the object
Increasing the distance between the charges
Increasing the magnitude of the charge of the object
Adding a magnetic field
What type of bond will form when electrons are transferred between atoms?
Metallic bond
Hydrogen bond
Covalent bond
Ionic bond
In a covalent bond between two chlorine atoms (Cl₂), how many electrons are shared?
Two electrons
Four electrons
Six electrons
Eight electrons
Which compound would form an covalent bond?
CH₄
NaCl
K2O
CaBr2
What is the correct name for the compound N2O5?
nitrogen oxide
nitrogen pentoxide
dintrogen pentoxide
pentnitrogen dioxide
What is the correct name for Na2S?
Disodium monosulfide
sodium sulfur
disodium sulfide
sodium suflide
What are the two products in a combustion reaction?
Water and carbon dioxide
hydrocarbon and oxygen
water and a hydrocarbon
Carbon dioxide and hydrogen peroxide
In a single replacement reaction:
Two compounds exchange ions
One element replaces another in a compound
Two elements combine
A compound breaks down
What happens when two objects with the opposite charges are moved towards each other?
The charges will attract
The charges will repel
The charges will move in a circle
The charges will fall apart
Consider the following reaction:
4Na + O2 --> 2Na2O
How many moles of sodium oxide could be produced from 5 moles of oxygen?
20 moles
2.5 moles
7 moles
10 moles
