C165 Integrated Physical Sciences Pre-Assessment || 100%
Error-free Answers.
A mathematical model is used to predict the trajectory of a bullet fired from a gun.
Which discipline of physical science is used to develop this model? correct answers Physics
An environmental scientist monitors pollutants in a lake.
Which two disciplines of physical science does this scientist use?
Choose 2 answers correct answers 1. Chemistry
2. Earth science
Which study involves both Earth science and physics? correct answers Calculating how much
energy is associated with a hurricane
Which question could be answered with a controlled experiment? correct answers Does ice melt
faster in an empty glass or in a glass full of water?
Which topic would be appropriate for a controlled experiment? correct answers Determining
how fast different chemical pollutants dissolve in water
Which question requires a controlled experiment to answer? correct answers Which elements are
found in Earth's atmosphere?
Sir Isaac Newton discovered that the force of gravity between two masses increases if the masses
increase, and decreases if the distance between the masses increases. No experiments have ever
contradicted this relationship.
Which type of scientific statement is this? correct answers Law
The well-accepted scientific explanation for many characteristics of Earth's crust states that the
crust is broken into several large plates. These plates move slowly over the mantle below
because of convection and other processes. Earthquakes and volcanoes are most common at
places where the plates interact. Evidence from physics, chemistry, and geology supports this
explanation.
Which type of scientific idea is this explanation an example of? correct answers Theory
A student proposes that sugar will dissolve faster in rubbing alcohol than in water. The student
reasons that sugar and rubbing alcohol both contain carbon so they will mix more easily.
Which type of scientific idea is the student's proposal an example of? correct answers Hypothesis
, Why was the shrinking Earth idea replaced by the theory of plate tectonics? correct answers
Plate tectonics explained observations about Earth that the shrinking Earth idea could not
explain.
Astronomers have long accepted that plate tectonics exists nowhere in our solar system except on
Earth. In 2011, a scientist analyzed 100 NASA-space-mission photographs of Valles Marineris
on Mars, the longest known series of canyons in the solar system. The scientist found that Valles
Marineris showed features found only in locations on Earth where major tectonic plates divide.
What would be the appropriate response of scientists to this information? correct answers Carry
out further research to gain more understanding of possible plate tectonics on Mars
According to the theory of plate tectonics, volcanoes are especially likely to form along plate
boundaries because of rising magma. New satellite data mapping the ocean floor reveals
thousands of seamounts, which are small volcanoes. Some of the seamounts are in lines that
could correspond to past or present plate boundaries, but many are not aligned in this way.
How should scientists appropriately respond to the idea that some new mechanism of forming
the volcanoes is involved? correct answers Carry out more research to understand better how the
seamounts form
For many decades, scientists thought they understood how ozone breaks down in the
stratosphere, creating ozone holes. However, new data show significantly lower reaction rates
than can be explained by the long-held model.
What is the appropriate scientific approach for dealing with this contradiction? correct answers
Conduct additional experiments to confirm the new data
For almost 1500 years most scientists in Europe accepted Ptolemy's geocentric planetary model
that suggested the sun revolved around Earth. By the eighteenth century, most scientists
supported a heliocentric model that suggests that Earth revolves around the sun.
What is an appropriate scientific basis for this change in view? correct answers The existing
theory was changed to account for new data
A woman does pushups by lowering her body to the floor using her arms and then pressing
against the floor with her hands to push herself back up.
A woman is in a typical prone, plank position doing a push-up. She is looking at the floor. Her
toes are contacting the floor with her feet perpendicular to the floor. Her hands are flat on the
floor with wrists bent so that her forearms are perpendicular to the floor and elbows bent so that
her upper arms are parallel to the floor.
Which force causes her to rise? correct answers The upward force that the ground exerts on the
woman
Error-free Answers.
A mathematical model is used to predict the trajectory of a bullet fired from a gun.
Which discipline of physical science is used to develop this model? correct answers Physics
An environmental scientist monitors pollutants in a lake.
Which two disciplines of physical science does this scientist use?
Choose 2 answers correct answers 1. Chemistry
2. Earth science
Which study involves both Earth science and physics? correct answers Calculating how much
energy is associated with a hurricane
Which question could be answered with a controlled experiment? correct answers Does ice melt
faster in an empty glass or in a glass full of water?
Which topic would be appropriate for a controlled experiment? correct answers Determining
how fast different chemical pollutants dissolve in water
Which question requires a controlled experiment to answer? correct answers Which elements are
found in Earth's atmosphere?
Sir Isaac Newton discovered that the force of gravity between two masses increases if the masses
increase, and decreases if the distance between the masses increases. No experiments have ever
contradicted this relationship.
Which type of scientific statement is this? correct answers Law
The well-accepted scientific explanation for many characteristics of Earth's crust states that the
crust is broken into several large plates. These plates move slowly over the mantle below
because of convection and other processes. Earthquakes and volcanoes are most common at
places where the plates interact. Evidence from physics, chemistry, and geology supports this
explanation.
Which type of scientific idea is this explanation an example of? correct answers Theory
A student proposes that sugar will dissolve faster in rubbing alcohol than in water. The student
reasons that sugar and rubbing alcohol both contain carbon so they will mix more easily.
Which type of scientific idea is the student's proposal an example of? correct answers Hypothesis
, Why was the shrinking Earth idea replaced by the theory of plate tectonics? correct answers
Plate tectonics explained observations about Earth that the shrinking Earth idea could not
explain.
Astronomers have long accepted that plate tectonics exists nowhere in our solar system except on
Earth. In 2011, a scientist analyzed 100 NASA-space-mission photographs of Valles Marineris
on Mars, the longest known series of canyons in the solar system. The scientist found that Valles
Marineris showed features found only in locations on Earth where major tectonic plates divide.
What would be the appropriate response of scientists to this information? correct answers Carry
out further research to gain more understanding of possible plate tectonics on Mars
According to the theory of plate tectonics, volcanoes are especially likely to form along plate
boundaries because of rising magma. New satellite data mapping the ocean floor reveals
thousands of seamounts, which are small volcanoes. Some of the seamounts are in lines that
could correspond to past or present plate boundaries, but many are not aligned in this way.
How should scientists appropriately respond to the idea that some new mechanism of forming
the volcanoes is involved? correct answers Carry out more research to understand better how the
seamounts form
For many decades, scientists thought they understood how ozone breaks down in the
stratosphere, creating ozone holes. However, new data show significantly lower reaction rates
than can be explained by the long-held model.
What is the appropriate scientific approach for dealing with this contradiction? correct answers
Conduct additional experiments to confirm the new data
For almost 1500 years most scientists in Europe accepted Ptolemy's geocentric planetary model
that suggested the sun revolved around Earth. By the eighteenth century, most scientists
supported a heliocentric model that suggests that Earth revolves around the sun.
What is an appropriate scientific basis for this change in view? correct answers The existing
theory was changed to account for new data
A woman does pushups by lowering her body to the floor using her arms and then pressing
against the floor with her hands to push herself back up.
A woman is in a typical prone, plank position doing a push-up. She is looking at the floor. Her
toes are contacting the floor with her feet perpendicular to the floor. Her hands are flat on the
floor with wrists bent so that her forearms are perpendicular to the floor and elbows bent so that
her upper arms are parallel to the floor.
Which force causes her to rise? correct answers The upward force that the ground exerts on the
woman
