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WorksheetsGMAS Prep
Total questions: 40
Worksheet time: 20mins
What does the law of conservation of energy state?
that one form of energy cannot be transformed into two other forms at the same time
that energy cannot be created or destroyed
that energy can be created or destroyed only during energy transformations
that energy cannot be transformed from one form to another
What type of energy transformation occurs during photosynthesis in plants?
thermal to chemical
radiant to chemical
thermal to mechanical
radiant to mechanical
What type of energy is represented here?
thermal
chemical potential
elastic potential
radiant
What is the thermal energy of an object?
the sum of the kinetic and potential energy of an object due to the random motion of the particles
the energy of an object due to large scale motions and interactions
The energy that is stored in the nuclei of the atoms of the object
the energy that is carried by electromagnetic waves
A song is playing on the radio. Which best describes the change in energy flow?
sound energy to electric energy
sound energy to light energy
electric energy to sound energy
Electrical energy to light energy
Why is radiation the only way heat is transferred from the Sun to the Earth?
because particles cannot move from within the sun
because particles cannot move in Earth's upper atmosphere
because it is the only kind of heat transfer that can occur in a vacuum
because it is the only kind of heat transfer that can occur over a large distance
If these images represent samples of the same material under different conditions, which has the highest temperature?
Beaker on left
Beaker in the middle
Beaker on right
A heat engine converts thermal energy into what?
potential energy
chemical energy
mechanical energy
electrical energy
What are the currents of warm and cool air in earth's atmosphere called?
radiation currents
induction currents
convection currents
conduction currents
What distinguishes a Longitudinal wave from a Transverse wave?
the direction in which particles move as the wave passes
the ability of vibrations to cause waves
the necessity for a medium through which the wave travels
the direction in which the wave travels
Why can't sound waves travel in space?
The gas molecules in outer space air are too far apart
they are electromagnetic waves
they are mechanical waves
they cannot travel through a medium
The speed of sound in air is 350 m/s. What is the wavelength of a pure A note, at 440 Hz, in a concert hall?
0.80 m
0.90 m
0.85 m
0.95 m
Which label shows the wavelength of this wave?
1
2
3
4
Which label shows the amplitude of this wave?
1
2
3
4
Which label shows the crest of this wave?
1
2
3
4
Which statement is most accurate?
Refraction helps you see into a room from around the corner.
Diffraction helps you see into a room around a corner.
Refraction helps you hear sound from a room around the corner.
Diffraction helps you hear sounds from a room around a corner.
How are these two waves different?
The amplitude of wave 2 is twice the amplitude of wave 1.
The wavelength of wave 2 is twice the amplitude of wave 1.
The wave speed of Wave 2 is twice the wave speed of Wave 1.
The frequency of Wave 2 is twice the frequency of Wave 1.
Atoms of the same element that have different numbers of neutrons are called __________.
metals
nonmetals
isotopes
metalloids
An atom containing six protons and six electrons has __________ charge.
a neutral
negative
positive
a strong negative
A(n) __________ is an atom that has gained or lost an electron and is no longer neutral.
isotope
molecule
compound
ion
The small, negatively charged particles discovered by J.J. Thomson are called __________ .
alpha particles
electrons
protons
neutrons
Democritus believed that the universe was made of empty space and __________ .
molecules
mixtures
compounds
atoms
To which major classification do the elements cerium (atomic number 58) and europium (atomic number 63) belong?
metals
metalloids
actinides
lanthanides
Which metal is a liquid at room temperature?
platinum
gold
mercury
aluminum
Which element is located in group 5, period 4?
hafnium
vibranium
vanadium
zirconium
Which element is NOT a transition element?
aluminum
copper
zirconium
gold
What is Krypton's atomic mass?
36
83.80
119.80
47.80
How many nitrogen (N) atoms should appear on the right side of this equation?
three
none
one
two
Where is a coefficient found in a chemical equation?
separating any two reactants or any two products
just after one or more of the elements in one or more reactants or products
between the reactants and the products
just before the chemical formula of one or more reactants or products
Which does NOT happen during a chemical reaction?
a new substance is formed
energy is created or destroyed
chemical bonds are broken
atoms are rearranged
Which reactant correctly balances the equation shown here?
O3
3O
2O2
3O2
What is the attractive force that exists between all objects that have mass called?
weight
friction
gravity
mass
Why is Newton's first law sometimes called the law of inertia?
because inertia describes the application of force to an object at rest
because inertia is the tendency of objects to resist changes to their motion
because inertia is the same thing as friction
because inertia describes the application of force to an object in motion
What is the acceleration of this box?, F=ma.
0.4 m/s2
0.2 m/s2
2.6 m/s2
4.1 m/s2
What is represented in the image shown here?
two protons repelling each other
two protons attracting each other
two electrons repelling each other
two neutrons attracting each other
If a neutral atom gains an electron, what is its charge?
negative
positive
neutral
postive and negative
Which of the following materials is the best conductor?
glass
plastic
iron
rubber
Why is the light bulb not on, in this image?
The bulb is burnt out
the battery is dead
the circuit is open
the circuit is closed
Which is the Ohm's law calculation for voltage across a loudspeaker with a current of 3 amperes and a resistance of 4 ohms?
3 A ÷ 4 Ω = 0.75 V
3 A + 4 Ω = 7 V
4 Ω ÷ 3 A = 1.3 V
3 A × 4 Ω = 12 V
All three light bulbs in this image would turn off if you cut the wire at which point?
A
B
C
D
