Font size
WorksheetsQ3 Physical Science Test Review
Total questions: 56
Worksheet time: 5hrs 40mins
What is the formula for momentum (p)?
p=mv
p=dF
p=tW
What are the units for momentum (p)?
kg • m/s
Joules (J)
Watts (W)
Newtons (N)
Newton-Meters
What is Newton's Third Law?
(a)
Fill in the Blanks (separate by commas): As the ____ pushes ____, the rocket is propelled ____.
(a)
What is the formula for work (W)?
W=mv
W=Fd
W=tvp
What are the units for work (W)?
(a)
What is the formula for power (P)?
P=mv
P=dF
P=tW
What are the units for power (P)?
(a)
Fill in the Blank (separate by commas): A screw is an ________ wrapped around a ____.
(a)
Fill in the Blank: A wedge is made of 2 (a) s back-to-back.
Most simple machines (such as an inclined plane) ____ the distance.
increase
decrease
Most simple machines (such as an inclined plane) ____ the force.
increase
decrease
Fill in the Blank (separate by commas): Some simple machines (like a pulley) change the ____ of the ____.
(a)
The three classes of levers have different positions of its (a) .
Fill in the Blank: 1st Class Levers has its (a) between the effort and the **.
Draw a 1st Class Lever
Draw the fulcrum as a triangle. Draw the load as a square. Draw the effort as a circle.
Fill in the Blank: 2nd Class Levers has its (a) between the effort and the **.
Draw a 2nd Class Lever
Draw the fulcrum as a triangle. Draw the load as a square. Draw the effort as a circle.
Fill in the Blank: 3rd Class Levers has its (a) between the fulcrum and the **.
Draw a 3rd Class Lever
Draw the fulcrum as a triangle. Draw the load as a square. Draw the effort as a circle.
____ moving molecules cause a balloon to expand.
Faster
Slower
____ moving molecules cause a balloon to contract.
Faster
Slower
When the temperature decreases, water vapor ____.
evaporates
condenses
When the temperature increases, water vapor ____.
evaporates
condenses
A pulled rope over a wheel
(a)
An inclined plane wrapped around a cylinder.
(a)
This is the point which a lever pivots.
(a)
Has a definite shape and definite volume.
(a)
When liquids change to solids, what two things take place?
the temperature decreases
the temperature increases
the object freezes
the object evaporates
When liquids change to gases, what two things take place?
the temperature decreases
the temperature increases
the object freezes
the object evaporates
If Sodium's atomic number is 11, how many protons (and electrons in a neutral atom) does Sodium have?
(a)
How do you find the number of neutrons in an atom? (MAN)
Mass Number - Atomic Number = # of Neutrons
# of Protons - Atomic Mass = # of Neutrons
# of Protons = # of Electrons
# of Protons = # of Neutrons
Neutral atoms (most common) have no charge because...
all of their neutrons cancel out the electrons
their protons and electrons cancel out since they are they have the same amount
there are more neutrons than protons and electrons
Where are protons and neutrons located?
nucleus
in the energy levels
Where are electrons located?
nucleus
in the energy levels
Draw a Bohr Model for Helium (Atomic Number: 2).
*Note: You do not have to worry about writing the number of protons and neutrons for this example, though on the test, you will have to indicate the amounts.
Atomic numbers...
show how many protons are in an atom.
identifies the element.
show the weight of the atom.
identifies the number of electrons in ions.
equal the number of protons plus the number of neutrons.
Mass numbers...
show how many protons are in an atom.
identifies the element.
show the weight of the atom.
equal the number of protons plus the number of neutrons.
identifies the number of electrons in ions.
(a) don't contribute to the atomic mass.
Electrons are 1/ (a) of an AMU (atomic mass unit).
The ________ is also referred as "atomic mass" or "atomic weight".
mass number
atomic number
weight number
atomic newton
____ are found outside the nucleus.
Electrons
Protons
Neutrons
____ have no charge.
Electrons
Protons
Neutrons
This subatomic particle identifies the element.
Electrons
Protons
Atomic Number
Atomic Mass
The number of ____ can vary between atoms of the same element.
Electrons
Protons
Neutrons
Who described the atom as "plum pudding" or a "chocolate-chip cookie"?
(a)
Democritus described an atom as the...
second smallest particle of matter.
smallest particle of matter.
the basic building blocks of life.
the size of a marble.
The atomic mass is the...
average of all the isotopes.
GCF of all the isotopes.
the most common of all the isotopes.
the number of electrons in a neutral atom.
When counting the different elements in a molecule, what do you count?
All the letters
The capital letters
The lowercase letters
The subscripts
The number of coefficients
A coefficient in front of a chemical formula tells you...
how many elements there are in that compound.
how many molecules there are in that compound.
how many atoms there are in that compound.
how many neutrons there are in that compound.
how many protons there are in that compound.
Ionic bonds...
transfer electrons and then attract.
share electrons.
Covalent bonds...
transfer electrons and then attract.
share electrons.
In ionic bonds, an atom transfers and electron, and then...
the positive and negative ions attract.
the two positive ions share electrons.
the two negative ions share electrons.
the number of protons is doubled.
Alfred Morgan Jr. finally takes over Ukraine with his Russian (USSR) military.
Negative charged ions are called...
(a)
Atoms of the same element that have different numbers of neutrons are called...
(a)
The average mass of all the isotopes of an atom:
(a)
