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Worksheets8th Science STAAR Review Cat. 1 & 2
Total questions: 35
Worksheet time: 35mins
Which statement correctly describes the location and charge of the neutrons in an atom?
The neutrons are inside the nucleus and have a positive charge.
The neutrons are outside the nucleus and have a neutral charge.
The neutrons are outside the nucleus and have a negative charge.
The neutrons are inside the nucleus and have a neutral charge.
What is the mass of sodium (Na) atom that has 11 neutrons?
11
23
22
12
How many electrons are in this element?
39
19
20
21
Which element does this model represent?
Nitrogen
Hydrogen
Carbon
Boron
Four students were asked to complete a table for a science assignment. Each student selected one chemical element from each of four groups in the periodic table and then classified each element as a metal, nonmetal or metalloid. Which table was completed correctly?
A
B
C
D
Students were asked to identify the location of elements in the periodic table based on clues printed on game cards. Based on the data, which periodic table shows the correct location of the four elements?
*the answer choices (F, G, H & J) are the same in the question image and the answer choice images...trying to make it so you can zoom in to see the answers!
Which pair of properties describes the elements in Group 18?
they are chemically stable and liquid at room temperature
they have eight valence electrons and are flammable
they are magnetic and boil at low temperatures
they are gaseous at room temperature and chemically stable
Element R and Element Q have the same number of valence electrons. These elements both have similar chemical behavior, but Element R has fewer energy levels than Element Q. Which statement best describes the positions of the two elements in the periodic table?
the two elements are in the same period, with element R the first element in the period and element Q the last element
the two elements are side by side in the same period, with element Q to the left or element R
the two elements are in the same group, with element R just above element Q
the two elements are in the same group, with element Q at the top of the group and element R at the bottom
Students in a science class prepared flash cards so that they could quiz one another about the arrangement of the periodic table. One of the flash cards contained information about two elements, Element L and Element M.
The students had to use the information on the flash card to determine possible positions of the two elements on a blank periodic table. Which periodic table has the elements placed in locations that match the information on the flash card?
The periodic table is organized into groups and periods of elements. The characteristics of a certain group of elements are listed in the image.
Which of these elements is in this group:
Lithium
Strontium
Aluminum
Silicon
In the case of a car crash, the body’s inertia will continue to carry it to the right. However, if the person is wearing a seatbelt, in which direction will this force act?
to the right
to the left
upward
downward
Suppose you pull Nick, who is standing on a skateboard, using a rope at a constant acceleration. What happens when you double the mass and add a friend?
There will be no change to the required amount of force.
The amount of force required is slightly increased.
The amount of force required is doubled.
The amount of force required is four-times as great.
Once in orbit, the space shuttle used very little, if any, rocket power to maintain its speed despite traveling over 15,000 mph! How were NASA engineers able to do this?
More mass equals more acceleration
The space shuttle was able to use a special coating in order to achieve its fast speed in space.
Gravity provides the necessary force to keep the space shuttle traveling at a high rate of speed.
More force at liftoff equals more acceleration
A ball at the top of a hill has ________ ________ because if pushed it will roll down the hill.
Mechanical Force
Unbalanced Energy
Potential Energy
Unbalanced Force
When a student runs and kicks a ball, they have applied an ___________ force to move the ball.
Balanced
Magnetic
Spring
Unbalanced
Standing in line is an example of a ________ ________ since you are not moving forward, backward, or sideways.
negative acceleration
balanced force
unbalanced force
1st law of motion
Which is newtons 3rd law
for every thing there is reaction
for every reaction there is a unusual action
For every reaction there is an equal and opposite reaction
for every reaction there is an good action
Which is newtons 2nd law
Acceleration is a change in speed
Acceleration is a change in action
Acceleration is a change in name
Acceleration is a change in velocity
Which type of force(s) will cause a change in an object's motion?
gravity
balanced forces
unbalanced force
net force
Newton's third law states that any action will have a(n) _______ and ______ reaction
equal and same
equal and opposite
equal and equal to
What are the appropriate units to describe acceleration?
m/p
m/h
m/s
m/s square
The tendency of objects to resist a change in motion is called:
Friction
Inertia
Gravity
Velocity
