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WorksheetsHonors Science 1st semester review
Total questions: 100
Worksheet time: 3hrs 47mins
If a chemical reaction occurs in an open system (not contained), what might happen to the measurable mass of the products when compared to the reactants?
the measurable mass might decrease because any gas produced can escape (the actual mass would stay the same)
the mass would increase because mass was created
the measurable mass would stay the same because nothing would be able to leave the system.
it depends on the type of reaction
If a chemical reaction occurs in a closed system (no way for any part of the reaction to escape), how does the product mass compare to the reactant mass?
the mass would decrease
the mass would increase
the mass would stay the same
it depends on the type of reaction
Convert 500,000 millimeters/month to kilometers/year
.6 kilometers/year
.06 kilometers/year
6 kilometers/year
60 kilometers/year
A child weighs 40.0 lb and is to receive 0.10 mg of an antibiotic for each kg of body weight. How many milligrams of the antibiotic shall the child receive? 1 kg = 2.2 lbs
18.1 mg
181 mg
0.181 mg
1.81 mg
0.000008
100000000
Round each number to five significant figures.
907.0759
907.08
907.07
907.076
908
Complete the following calculations. Round off your answers as needed.
52.6 g + 309.1 g +77.214 g
438.9
438.914
438.91
4.38914 x 102
Complete the following calculations. Round off your answers as needed.
245.01 km x 2.1 km
5.14521 x 102
510
514
514.521
The standard temperature of boiling water is 100oC. Which thermometer is the most accurate and precise?
1
2
3
4
None of the thermometers are accurate and precise.
Which of the following is a characteristic property of matter?
solubility
volume
mass
temperature
Which of the following is a characteristic property?
Melting Point
Mass
Volume
Shape
Which of the following is a characteristic property?
Texture
Boiling Point
Volume
Taste
If two substances have different volumes...
they are the same substance.
they are not the same substance.
volume is a non characteristic property, it can't be used to determine if substances are the same.
If two substances have the same mass...
we need more information to determine if they are the same substance.
they are the same substance.
they are not the same substance.
This bullseye demonstrates...
High Accuracy & High Precision
High Accuracy & Low Precision
Low Accuracy & High Precision
Low Accuracy & Low Precision
How close a measurement is to the true value is called..
Accuracy
Precision
Significant
Estimate
The height of an adult elephant...
4 cm
4 m
4 mm
4 km
The length of a paper clip is about...
4 mm
4m
4cm
What tool is this??
Beakers
Flasks
Tasks
Graduated Cylinders
What tool is this??
Flasks
Graduated Cylinders
Beakers
Test Tubes
What tool is this??
Bunsen Burner
Flame Thrower
Gas Guzzler
Fire Frenzy
The first length measured in a laboratory experiment is 2.5 + 0.1 m and the second length 3.4 + 0.1 m. If 2.5 + 0.1 m is added to 3.4 + 0.1 m, what is the uncertainty of the calculated length (final answer)?
+ 0.1 m
+ 0.2 m
+ 0.3 m
+ 0.4 m
If a student wants to measure 24.0 mL of water with the least amount of uncertainty, they should use _____________________.
three 10 mL graduated cylinders
one 25 mL graduated cylinder
one 50 mL graduated cylinder
one 100 mL graduated cylinder
You place a rock on the electronic balance an it measures a mass of 12.38 g. The estimated digit is....
1
2
3
8
Should bring nice weather
Low pressure
Cold front
Warm front
High pressure
Should bring poor weather
Low pressure
cold front
High pressure
Warm front
There are 24 cm3 Find the total mass.
What would you use to measure the amount of water in this bathtub?
Grams
Kilograms
Liters
Milliliters
A sample of a gas in a cylinder is shown. If the temperature is kept constant and the piston moves down to decrease volume, the pressure increases because the gas particles...
Expand
Become smaller
Lose velocity within the container
Collide more often within the container
Is the substance gaining or losing energy?
Gaining
Losing
What state/phase is the object likely from points A to B?
Solid
Liquid
Gas
Plasma
The earth rotates every
24 hours
15 hours
365 days
hour
On which date in New York State does the Sun follow the apparent path shown in the diagram?
Jun 21
Dec 21
Jan 21
Mar 21
On June 21, where does the Sun appear to rise for an observer in New York State?
due west
due east
northeast
southeast
During which season in the Northern Hemisphere is the Earth closest to the Sun?
winter
spring
summer
fall
At which degree of latitude are perpendicular sun rays striking the Earth in the diagram?
Equator
Tropic of Cancer
North Pole
Tropic of Capricorn
Opposite Hemispheres (Northern and Southern) have opposite seasons.
True
False
This graph is from a place:
in the Northern Hemisphere
in the Southern Hemisphere
At the equator
This graph is from a place:
in the Northern Hemisphere
in the Southern Hemisphere
At the equator
This graph is from a place :
in the Northern Hemisphere
in the Southern Hemisphere
At the equator
How many trees are at least 15 feet tall?
12 trees
2 trees
9 trees
41 trees
A container weighing 3 lbs has the following dimensions; L=12 in W=10 in H=8 in, is placed on the ground so that it is as tall as possible. An 8 lb shot put is placed inside of the container. What is the amount of pressure exerted on the ground by the shot put and container?
.1375 lbs/in2
.01146 lbs/in3
87.27 lbs/in3
10560 lbs/in2
