Font size
Worksheets8th Grade Mid Term 2023-2024
Total questions: 82
Worksheet time: 7hrs 47mins
The atom is made up of protons, (a) and electrons.
When an object is at rest, the forces are (a) .
Electrons have a negative charge and are found in the electron (a)
A (a) is a pull, push or stretch
An --- force can cause motion.
(a)
The atomic number, protons, and electrons are all the --- number.
(a)
The way to remember the formula for force is Feed My ---
(a)
Groups on the periodic table go in a --- direction.
(a)
The formula for speed is distance (a) by time.
We use the --- --- to organize the elements.
(a)
Terms used to measure time are seconds, minutes, and ---
(a)
The chemical formula CH2O has --- elements.
(a)
The periodic table has --- periods.
(a)
--- energy is energy that is stored.
(a)
The chemical formula CH2O has --- atoms TOTAL.
(a)
Kinetic energy is the energy of a (a) object.
--- are shiny, good conductors, and on the left side of the PTE.
(a)
--- is Newton's first law of motion
(a)
--- are semiconductors and found along the staircase.
(a)
The more mass an object has, the more --- you need to move the object.
(a)
--- are poor conductors, brittle, and on the right side of the PTE.
(a)
Action/reaction is Newton's --- law of motion
(a)
Group 18 are called --- --- and are the most inert.
(a)
When forces are in the same direction, you (a) them up.
A --- reaction will ALWAYS produce a new substance.
(a)
--- is any change in speed or direction
(a)
Change in --- of matter is an example of a physical change
(a)
An object will ALWAYS move in the direction of the --- force.
(a)
RAP stands for reactants (a) products
Don't Say --- is a way to remember the formula for speed.
(a)
Match the following
mph
speed
mph to the north
velocity
m/s2
acceleration
speed
d/t
velocity
speed and direction
Match the following
mechanical
car
radiant
sun
chemical
battery
electrical
outlet
nuclear
atoms
Match the following
subscript
small number =atoms of element
proton
in nucleus
electron
in clouds
neutron
neutral
288
electrons in each cloud
Match the following
time
minutes
seconds
hour
speed
distance divided by time
acceleration
going faster
velocity
speed and direction
net force
the sum of all forces on an object
Match the following
force
push or pull
potential
stored
kinetic
motion
energy
ability to do work
Match the following
Boron
5th element
Water
H2O
NaCl
Salt
CO2
Carbon dioxide
Match the following
newton
force
mass
grams
joule
energy
acceleration
mph2
speed
m/s
metal
Ag
noble gas
Ar
Metalloid
As
non-metal
Cl
proton
positive
electron
negative
neutron
no charge
nucleus
center
1st law
inertia
2nd law
f=ma
3rd law
equal and opposite
Issac Newton
scientist who created the laws of motion
Match the following
friction
force that slows you down
constant
same
Nuclear
atom
radiant
microwave
thermal
hair dryer
Match the following
gradual decrease in speed
stationary
constant
gradual increase in speed
return to start
Match the following
H
element
H2O
compound
NH3
nitrogen
hydrogen
NaCl
sodium
chlorine
CO2
carbon
oxygen
Match the following
gravity
force that pulls you to center of earth
1st law
2nd law
3rd law
Spring scale
used to measure force
The formula for force is (a) multiplied by (b) .
mass
acceleration
denisty
speed
distance
The formula 2Al(SO4)2
Has (a) atoms of Al
Has (b) atoms of S
Has (c) atoms of O
2
4
16
22
has a net force of (a)
will move (b)
the stronger force is (c)
200 N
gravity
air
down
up
1400 N
The net force is (a) to the (b) .
90N
30N
left
60N
right
unbalanced
Mercury (Hg) is in group (a) and in period (b)
12
2
10
6
1
7
To measure force we use a (a) and the units are (b)
spring scale
TBB
scale
Newtons
joules
grams
Stirring the ingredients to make a cake is a (a) change, but baking the ingredients to make a cake is a (b) change.
physical
chemical
transformation
reaction
conservation
A bird sitting on a wire is a (a) , but the bird flying off the wire is an (b) .
balanced force
unbalanced force
force
net force
wind
When counting atoms, a (a) tells you how many molecules of a compound you have.
subscript
element
multiply
coefficient
A flashlight converts chemical energy into (a) then light
mechanical
thermal
radiant
electrical
(a) is the ability of a metal to be shaped into a wire.
luster
brittle
malleable
ductile
(a) is the sum of all forces on an object.
acceleration
force
magnitude
net force
(a) is the ability of an object to reflect light.
ductile
brittle
malleable
luster
(a) is the ability of a metal to be bent or shaped.
luster
brittle
ductile
malleability
The element (a) has 78 protons.
platinum
gold
silver
polonium
A human body converts chemical energy to (a) when riding a bike.
mechanical
thermal
potential
sound
Protons determine the reactivity of an element (a)
false
true
Energy is measured in Newtons (a)
true
Subscripts determine the number of atoms of an element (a)
false
true
Balanced forces cause no change in motion (a)
false
true
Mass can not be created or destroyed (a)
unbalanced forces cause acceleration (a)
Neutron and protons have a mass of 1 amu (a)
A flatline on a distance time graph means the object is stationary (a)
The steeper the line on a motion graph the FASTER the speed (a)
Hydrogen is the most reactive element on the periodic table (a)
A car traveling at 65 kilometers per hour is a speed (a)
Energy at the highest point is potential energy (a)
electrons are in the nucleus (a)
Newton's second law explains why objects stay at rest (a)
Metalloids are good conductors of heat and electricity (a)
Energy can always be created and destroyed (a)
When counting atoms a coefficient means you need to divide (a)
When calculating speed you must divide time with distance (a)
a chemical reaction will NEVER produce a new substance (a)
Newton's 3rd law says forces must be uneven and opposite (a)
A example of kinetic energy is a plane flying at its highest altitude (a)
Which moon phase will create SPRING tides
