Physical Science - Quiz to end all quizzes
Quiz by Katie Heter
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Krystal is exploring the properties of iron. She takes a large iron nail and finds that the nail does not attract other metal objects. Next, she uses a battery and copper wire to transform the nail into an electromagnet. When she connects the circuit, the nail becomes magnetic and can pick up small metal objects like paper clips. This is shown in the illustration below.
What best describes what has happened to the iron in the nail that causes it to become magnetic?
29A physical change has occurred, because the chemical properties of iron remain the same.
A physical change has occurred, because the chemical attraction between the iron and paper clips.
A chemical change has occurred, because the chemical energy in the battery is transformed into magnetic energy in the iron.
A chemical change has occurred, because there is a chemical attraction between the iron and paperclips
- Q1
Krystal is exploring the properties of iron. She takes a large iron nail and finds that the nail does not attract other metal objects. Next, she uses a battery and copper wire to transform the nail into an electromagnet. When she connects the circuit, the nail becomes magnetic and can pick up small metal objects like paper clips. This is shown in the illustration below.
What best describes what has happened to the iron in the nail that causes it to become magnetic?
A physical change has occurred, because the chemical properties of iron remain the same.
A physical change has occurred, because the chemical attraction between the iron and paper clips.
A chemical change has occurred, because the chemical energy in the battery is transformed into magnetic energy in the iron.
A chemical change has occurred, because there is a chemical attraction between the iron and paperclips
30s - Q2
The students in Ms. Ramirez's science class are classifying different types of reactions. They have divided the reactions into two columns as shown below. Use the table to answer
the questions that follow.
Why are the reactions listed in Column A classified as chemical reactions?
The products of the reaction can be changed back into the original products easily
They change the shape of the substance
They form new substances
They do not change the characteristics of the original substance
30s - Q3
Carbon dioxide (CO2) is a substance that is a gas at room temperature. At temperatures below 78°C, carbon dioxide condenses into a white solid known as dry ice. At normal atmospheric pressures, dry ice changes directly from a solid to a gas without passing through a liquid
phase when its temperature increases. This process is called sublimation. Which of the following best describes the process of sublimation?
It is a chemical reaction because the kinetic energy of the molecules is changing
It is a physical reaction because it is a change of state
It is a chemical reaction because a new form of carbon dioxide is created
It is a physical reaction because the density of the material increases.
30s - Q4
Coal contains carbon and other elements. Carbon dioxide forms when coal burns in the presence of oxygen. Which of these is the best evidence that a chemical reaction occurs when coal burns?
The shape of the coal changes.
A new substance is produced
Coal is made up of more than one element.
Oxygen is present
30s - Q5
Mathews family has a compost heap in their backyard that recycles yard and food waste into useable soil. During which season would the decomposition happen the fastest?
Summer
Spring
Fall
Winter
30s - Q6
For a laboratory investigation some students put a strip of shiny metal into a beaker of blue solution and then stored the beaker on the shelf overnight. The next morning, the students recorded observations about the metal and the solutions in the box below. Based on their observations, can the students correctly concluded that a chemical reaction occurred?
Yes, because the volume of the blue solution stayed the same.
No, because the solution stayed blue.
No, because the metal strip is still visible.
Yes, because a new material of a different color formed on part of the metal strip.
30s - Q7
A silver ring reacts with compounds containing sulfur in the air to form silver sulfide, a black substance that makes tarnish on the surface of silver objects. To remove the tarnish from the ring, students placed it in a pan lined with aluminum foil and added hot water. Baking soda was added to the hot water and stirred. Students made observations about the process.
Which observation about the process provides evidence of a chemical reaction?
The hot water cooled
The liquid solution changed color
Hot water heated the aluminum foil
The pan was lined with aluminum foil
30s - Q8
As part of an investigation, students combined substances in a beaker to observe chemical reactions. They performed two procedures. They measured the mass of each substance before and after each reaction. The table shows their observations. Assuming the students did not make careless errors, what likely explains these changes in mass?
Procedure 1: One of the products was a gas that escaped into the air
Procedure 2: A gas from the air reacted with one of the other reactants.
Procedure 1: The reactants were liquids with different densities
Procedure 2: The reactants were combined into only one product
Procedure 1: All reacts were liquids that evaporated
Procedure 2: A gas was formed as one product and it escaped into air
Procedure 1: One of the reactants was converted to thermal energy
Procedure 2: All the products were liquids
30s - Q9
A student obtains two strips of magnesium, Mg, ribbon that are each 3 cm long. One strip is placed in a test tube containing 5 ml of water and one in a test tube containing 5 ml of hydrochloric acid. Both liquids are at room temperature. The student’s observations are recorded in the table. Which is NOT supported by the students observations?
A gas is released in Test Tube 2.
The substance in both test tubes are reactive only at high temperatures
A chemical reaction takes place between magnesium and hydrochloric acid.
Energy is released in the reaction involving hydrochloric acid.
30s - Q10
Electromagnetic radiation is energy that travels in waves. Some examples of electromagnetic radiation are visible light, radio waves, and x-rays. Which statement is true for all forms of electromagnetic radiation?
All forms of electromagnetic radiation have the same wavelength
All forms of electromagnetic radiation have the same amount of energy in a vacuum.
All forms of electromagnetic radiation have the same frequency.
All forms of electromagnetic radiation travel at the same speed in a vacuum.
30s - Q11
Which of the following colors of the Visible Light Spectrum has the lowest amount of energy?
yellow
orange
blue
green
30s - Q12
Ultraviolet light comes from the Sun and can sometimes cause serious health issues such as skin cancer. Why does ultraviolet light have this effect on our bodies, but visible light does not?
Ultraviolet light is attracted to our skin.
Ultraviolet light moves faster than visible light.
Ultraviolet light has more energy than visible light.
Ultraviolet light has less energy than visible light.
30s - Q13
One type of light that comes from the Sun is called infrared. Human eyes can't see this type of light, but specially built cameras can. Why can't human eyes detect infrared light?
The wavelength of infrared light is too long for our eyes to detect.
The energy of infrared light is too high for our eyes to detect.
The Sun does not give off enough infrared light for our eyes to detect.
Infrared light is too fast for our eyes to detect.
30s - Q14
Within the visible spectrum of light, there are many colors: red, orange, yellow, green, blue, indigo, and violet. What characteristic of each of these colors makes this spectrum of light visible to the human eye?
Each color travels at a different speed.
Each color has a different level of intensity.
Each color has a different wavelength.
Each color must travel a different distance to our eyes.
30s - Q15
A large amount of energy is emitted from the Sun. This energy then travels millions of miles from the Sun to the Earth. The energy that comes from the Sun is best categorized as what type of energy?
kinetic energy
potential energy
mechanical energy
radiant energy
30s
