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WorksheetsPS Final 2021
Total questions: 57
Worksheet time: 29mins
Which of the measurements would be the most helpful in determining the wavelength?
W
X
Y
Z
According to the diagrams, long wavelengths ______________.
travel more slowly than short wavelengths
have a greater frequency than short wavelengths
diffract around objects more easily than do short wavelengths
are able to generate far more power than are short wavelengths
What part of a wave is shown at F?
amplitude
wavelength
crest
trough
What wave property is indicated by the letter J?
wavelength
crest
amplitude
trough
According to the table, which type of electromagnetic wave can have a wavelength of 0.000046 cm?
Radio waves
Microwaves
Red light
Blue light
Adam placed a heated aluminum cube in a beaker of water and then measured the change in the temperature of the water.The change in temperature he recorded was most likely measured in
calories
degrees Celcius
grams per cubic centimeter
joules
____ is the thermal energy that is transferred from a material with a higher temperature to one with a lower temperature.
Work
Kinetic energy
Heat
Potential energy
Which thermometer best represents the temperature 96°?
A
C
E
F
H
Which thermometer best represents the temperature 39°?
B
D
F
H
J
Two objects with different temperatures are placed into a system. Which way will heat flow naturally?
From the warmer object to the cooler object.
From the cooler object to the warmer object.
From one object to the other regardless of temperature.
No flow will occur.
Alexandra was preparing to go on a hike in the woods. She gathered the equipment she would need and placed it on the kitchen counter. By chance, she placed her compass near an electrical outlet. Although the compass was not moving, the compass needle turned because _______________.
the electric current in the outlet produced a magnetic field
the compass could only be used outdoors
the kitchen counter was made of a magnetic substance
the kitchen had a microwave oven
A magnetic field exerts a force on ______.
other magnets
objects made of magnetic materials
other magnets and objects made of magnetic materials
none of these
According to the diagram, which pair could both be north poles?
A and B
B and C
A and C
C and D
Electric current passing though a wire produces ________.
a magnetic field around the wire
a permanent magnet
geographic poles
a compass
Which of the following is a form of electromagnetic induction?
producing electric current by moving a magnet through a wire loop
using an electromagnet to measure electric current
producing mechanical energy by sending electric current through an electromagnet
changing electrical energy to mechanical energy that produces sound
What is true of visible light in comparison to other kinds of electromagnetic waves?
Visible light travels faster in a vacuum.
Visible light has a lower frequency than X-rays.
Visible light has a lower frequency than microwaves.
Visible light has only one frequency.
Which of the following uses radio waves?
radar
radiation therapy
X-ray machine
CD-ROM
Electromagnetic waves that can be detected by the human eye are called _________.
visible light
gamma rays
X-rays
infrared waves
The entire range of the electromagnetic wave frequencies is known as _______.
ultraviolet radiation
visible light
the electromagnetic spectrum
magnetism
Which of the following electromagnetic waves can travel through matter and cause damage to cells?
radio waves
microwaves
infrared waves
gamma rays
The total amount of energy before and after a chemical reaction is the same. Thus, energy is
created.
destroyed.
conserved.
the same as mass.
In the diagram above, a roller coaster car starts from rest at point A and moves along the track. At which point does the roller coaster car have the greatest kinetic energy?
A
B
C
D
What energy change do these appliances have in common?
They convert electrical energy to thermal energy.
They convert electrical energy to mechanical energy.
They convert mechanical energy to electrical energy.
They convert thermal energy to electrical energy.
The temperature is higher inside a greenhouse than outside because of the conversion of
radiant energy into thermal energy
thermal energy into light energy
nuclear energy into thermal energy
electrical energy into thermal energy
______ energy is the energy an object has because of its motion.
Kinetic
Magnetic
Chemical
Potential
A real car moving at 10 km/h has more momentum than a toy car moving at the same rate because ______.
its mass is greater
its mass is less
it moves faster
of friction
What do objects increasing in velocity NOT have?
Momentum
Mass
Balanced forces
If an object with a mass of 12 kilograms is moving at 10 meters per second, what is its momentum?
120 kg*m/s
120 kg*m*s
1.2 kg*m/s
1.2 kg*m*s
Newton's Second Law of Motion can be summarized by which equation?
M = F/a
F = ma
F = m/a
A mass has a momentum of 50 kg*m/s, when its velocity doubles what happens to its momentum?
The momentum doubles.
The momentum quadruples.
The momentum is halved.
The momentum stays the same.
Force is measure with
Newtons.
Pounds.
Kilograms.
Meters per second per second.
Forces are
a push.
a pull.
a push or a pull.
neither a push or a pull.
A car travels along a straight road 100 m east then 50 m west. What is the displacement of the car?
50 m east
0 m
100 m west
150 m east
Which formula is defined by the Second Law of Motion?
F = ma
v = d / t
a = (vf-vi) / t
p = mv
What is probably being measured in the diagram?
speed
engine temperature
rate of tire wear
gasoline mileage
According to the table, which alkaline Earth metal has a mass number greater than 100?
Magnesium
Calcium
Strontium
Barium
According to the table, which element has the LOWEST atomic number?
Magnesium
Calcium
Strontium
Barium
Neutrons have ______ charge.
positive
negative
variable
neutral
The atomic number of Fluorine is 9. How many electrons are on its first energy level?
7
2
9
0
Which particle is located in the cloud region of the atom?
electron
neutron
nucleus
proton
According to this chemical formula, all of the following elements are found in phosphoric acid EXCEPT ______.
hydrogen
oxygen
phosphorus
potassium
This chart gives the results of an experiment testing physical and chemical properties of elements. A fifth element also was tested. It did not conduct electricity, it reacted with alkali metals, and it was a gas. This element behaved most similarly to
Element 1
Element 2
Element 3
Element 4
The table lists properties of some elements. Which element would you expect to be in group 18 of the periodic table?
carbon
neon
chlorine
sodium
According to this information, which solid has an atomic mass greater than 200?
rubidium
cesium
tantalum
thorium
Which of the following does NOT state what the arrow means in a chemical equation?
forms
produces
conserves
yields
Calcium fluoride (CaF2) is an ionic solid that is a natural source of fluorine for the chemical industry. What is the charge on the calcium ion in calcium fluoride?
-2
-1
+1
+2
Which element, represented by X, would have the valence electron configuration shown in the diagram?
lithium (Li)
boron (B)
sodium (Na)
phosphorus (P)
Which of the following is the reason why atoms of sodium and chlorine attract each other in a salt crystal?
Sodium has a positive charge and chlorine has a negative charge.
Sodium has a negative charge and chlorine has a positive charge.
Both have a positive charge.
Both have a negative charge.
Which force holds protons and neutrons together in the atom nucleus?
electric force
gravity
strong nuclear force
weak nuclear force
During nuclear fission, a nucleus _________.
grows
divides
shrinks
combines with another
When two smaller nuclei come together, it is called ________.
nuclear fission
nuclear fusion
chain reaction
critical mass
What type of nuclear reaction is shown?
fusion
fission
chain reaction
alpha radiation
Which force holds protons and neutrons together in the atom nucleus?
electric force
gravity
strong nuclear force
weak nuclear force
Carbon-14 and carbon-12 have the same number of protons but a different number of neutrons. These different forms of the same element are called
radioactive
isotopes
nuclei
tracers
The mass number of a nucleus is equal to ______.
the number of protons plus the number of neutrons
the number of electrons
the number of protons
the number of neutrons
Protons do not repel each other in the nucleus because of the ______.
weak force
electric force
strong force
gravitational force
Which of these is not a type of nuclear radiation?
alpha particles
beta particles
gamma rays
microwaves
