WorksheetsReview Semester 1
Total questions: 37
Worksheet time: 4hrs 56mins
For every action, there is an equal and opposite reaction
Newton's 1 law
Interia
Newton's 2 law
Acceleration
Newton's 3 law
Action/Reaction
A box is at rest on a horizontal surface. If a force of 10 N is applied to the right and a frictional force of 10 N acts to the left, what can be said about the motion of the box?
The box will move to the right.
The box will move to the left.
The box will remain at rest.
The box will move upwards.
The Law of Conservation of mass states: Nothing cannot be created or (a) .
How many Hydrogen (H) atoms are in NH3
4
3
12
1
Count and label the amount of atoms on each side of the equation.
2
4
In the equation shown, what are the reactant(s)?
N2 + H2
NH3
In the chemical formula C12H22O11 , how many C atoms are there?
12
22
11
45
How many oxygen atoms are in this chemical formula?
6 oxygen atoms
2 oxygen atoms
3 oxygen atoms
4 oxygen atoms
When boiling water to a kettle, you will observe a gas/vapor flowing out while boiling. This is an example of chemical change. True or False
True because a gas was formed
True because there a change in matter
False because gas formation is not a indicator of chemical change
False because water vapor is a indicator of physical change
Change in odor
Bright light formed
In object will stay in rest or it will stay in motion unless an unbalance force acts on it. its also called the law of inertia.
Newton's 1st law Interia
Newtons 2nd law Acceleration
Newton's 3 law Action/Reaction
the lass mass an object has the more acceleration it has. The more mass an object has the more force is needed to make it accelerate. what law is this?
Newton's 1st law Interia
Newton's 2nd law Acceleration
Newtons 3 law Action/Reaction
The H-R diagram classifies stars based on what factors?
Temperature and luminosity
Number of planets
What constellation they're in
Temperature and fusion
The sun is located where in our galaxy?
The arm of a spiral galaxy
The top of a elliptical galaxy
In the Center of a spiral galaxy
What color represents the Hottest stars?
Blue
orange
Red
Yellow
Photosynthesis is the process in which plants make sugar(glucose) and oxygen. It is a ---- property.
Chemical
Physical
What is a Chemical Property?
Allows the substance to remain the same
Allows the substance to change into another substance and produce something new
Flammability is the ability of a substance to _________
Burn
Transfer heat
Transfer electricity
Cook
Protons have what type of charge
postive
Negative
Neutral
Electrons have what type of charge
Postive
Neutral
Negative
How many of each element is represented in this compound?
Na2CO3
1 Na
3 C
3 O
2 Na
1 C
3 O
6 Na
3 C
3 O
1 N
1 a
1 C
3 O
Everything we touch is made of…
Atoms
Air
Carbon
Magic
When 2 or more elements are combined, a compound is created.
True
False
A force that opposes the motion of an object is called (a) .
gravity
heat
What is the unit of force?
Second (s)
Newton (N)
What is Newton's first law of motion?
An object in motion will change its direction if an external force is applied to it.
An object at rest will stay at rest, and an object in motion will stay in motion with the same speed and direction, unless acted upon by an external force.
What is the direction of force when an object is pushed to the right?
right
left
up
down
what is the total number of herbivores represented in the food wed
2
4
6
8
Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?
There would be a decrease in the small bird population.
There would be a decrease in the grass/flowers population.
There would be a decrease in the mice population.
There would be an increase in the grass/flowers population.
what is the net force?
<--------- 8N 4N-------->
2N to the right
12N to the right
4N to the left
32N to the left
the illustration provided shows 4 location in or near in the milky way galaxy. which of the labeled locations shows the approximate location of the sun
W
X
Y
Z
