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Unit 1 Matter Assessment Flashcards | StudBud
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Unit 1 Matter Assessment
Unit 1 Matter Assessment
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1
A rancher removes the top layer of fat from fresh milk. Why is the layer of fat on top?
There other parts of the milk come out of the cow before the fat.
The fat does not mix well with the other parts of the milk.
There is less fat in compared to other parts of the milk.
The fat has a lower density than the other parts of the milk.
2
Two different materials, 1 and 2, have the same mass (see image). Compared to material 1, material 2, has a different...
Mass
Phase
Density
Shape
3
In the graph shown below, what is the independent variable and general trend of the solubility curve for sugar?
Temperature; decreasing
Solubility; decreasing
Temperature; increasing
Solubility; increasing
4
Which property could be tested to classify an unknown metal sample that could be either Cobalt or Nickel?
Mass
Density
Electrical Conductivity
Reactivity with Oxygen
5
The image shows water in graduated cylinders. There is 50ml of water before the rock is added. Classify this statement.
Theory
Observation
Hypothesis
Law
6
Water is the universal solvent as it dissolves many substances. Which substance has the greatest solubility in water?
Salt
Olive Oil
Coconut Oil
Sand and Soil
7
If you brought a unicorn to the Moon (smaller gravitational force), what changes do you expect in its mass & weight?
Mass would increase, and weight would remain unchanged.
Weight would increase and mass would remain unchanged.
Mass would decrease and weight would remain unchanged.
Weight would decrease and mass would remain unchanged.
8
You mixed 20g of sugar with 150ml of water at room temperature. What can you do to make the sugar dissolve faster?
Use more sugar
Increase the temperature
Remove some of the water
Use larger pieces of sugar
9
Physical properties define substances. The process below demonstrates which physical property of salt?
Thermal Conductivity
Texture
Mass
Solubility
10
Ms. Roque carried out an experiment and created the graph below. Which of the following were involved in her experiment?
Physical change
Chemical change
The formation of a new substance
The addition of a new substance
11
Consider a sample of metal that could be iron (Fe) or Zinc (Zn). Which of the following properties should you test?
Melting Point
Reactivity with a strong acid
Electrical Conductivity
Volume
12
Ms. Roque carried heated water and created the graph below. Which of the following physical properties did she measure?
The boiling point and the melting point
The densities and states of matter
Solubility and electrical conductivity
Volume and thermal conductivity
13
Which of the following is most likely to change scientific knowledge?
More links added to the internet.
More expensive experiments.
New data or interpretations of the natural world.
Improved methods for conducting opinion polls.
14
Which property of matter is the same for a particular substance, independent of the sample size?
Volume
Density
Weight
Heat Content
15
You have a stomach ache so you add alka seltzer to water. How would temperature alter the rate of the chemical reaction?
Increasing the temperature would cause the reaction to happen quicker.
The temperature does not affect the rate of the reaction.
Colder temperatures would make the reaction happen quicker.
Applying heat would cause the reaction to slow down.
16
In which state of matter are the molecules packed closely together?
Liquid
None of the Above
Solid
Gas
17
Which of the frames below illustrate a state of matter that does not have a fixed shape or volume?
B
A
B and C
C
18
Using the measurements below, what is the best determination that can be made about the objects? (D = m/v)
The objects are the same substance b/c they have the same density.
The objects are different substances b/c their volumes are different.
The objects are different substances b/c their densities are different.
The objects are different substances b/c their masses are different.
19
Ms. Roque mixes sodium bicarbonate with acetic acid at 25 °C. Which conditions would produce fastest reaction rate?
Add 200mg of sodium bicarbonate to 1000ml of acetic acid at 14°C
Add 200mg of sodium bicarbonate to 1000ml of acetic acid at 25°C
Add 100mg of sodium bicarbonate to 500ml of acetic acid at 50°C
Add 100mg of sodium bicarbonate to 500ml of acetic acid at 25°C
20
Your friend gives you a gold ring. How can you determine if it is pure gold?
Perform a test for chemical reactivity
Determine the solubility of the object
See if it is attracted to a magnet or not
Find the density then compare it to the published value for density of gold
21
When solid ice melts and becomes liquid water, a change has occurred. Which of the following is a chemical change?
When liquid water freezes into ice
You dissolve sugar in your coffee
When silver is melted to create earrings
Your bicycle outside starts to form rust on the metal handlebars
22
The elements Lithium (Li), Aluminum (Al), and Gold (Au) are metals. Which physical property of metals do they share?
They are all a dull, greyish color.
They are all magnetic.
They all have the same melting point.
They are thermal and electrical conductors.
23
You are explaining the difference between mass and weight. Which of the following statements would you make?
The SI unit for measuring weight is grams
Only the mass of an object depends on the size of the object
Weight measures a force, while mass measures the amount of matter
The scientific term for "weight" is "mass"
24
As Ms. Roque mixed two substances in a test tube, smoke began to form and there was a foul odor. What was happening?
The two substances were melting.
A new substance was being formed.
The two substances underwent a physical change.
The two substances were losing mass.
25
Which of the following can be concluded about metals, based on the image below?
All metals have magnetic properties.
Only aluminum and copper have magnetic properties.
Aluminum and copper are not metals.
Some metals have magnetic properties.
26
The image below shows the creation of juice by powder to water then stirring the mixture. Which statement is true?
There is not enough information to answer the question
The mass of the juice is greater than the mass of the water and the powder
The mass of the water and the powder is the same as the mass of the juice
The mass of the water and the powder is greater than the mass of the juice
