Question 1

The principal advantage of metric units over English units is that

Accepted Answer

Conversions between metric units are based on powers of 10, making them easier to calculate and understand compared to the complicated conversion ratios and formulas required for English units.

Question 2

When a scientist wants to strengthen a theory, she can make predictions of measurable events. The theory becomes stronger when

Accepted Answer

The strength of a theory is validated through observation and measurement of predicted events. This is what is known as empirical evidence, which is gathered through scientific experiments and observations. The other choices, such as democratic process, funding, or disproving the prediction, do not necessarily make a theory stronger.

Question 3

Which of the following is not a major subfield of physics?

Accepted Answer

Electricity and magnetism, thermodynamics, and optics are major subfields of physics while statistics is not typically considered a main subfield of physics.

Question 4

A person claims that he can start fires by using his mental powers. If we start with the hypothesis that his claim is true, we can

Accepted Answer

The best way to test the hypothesis is to put him in a controlled environment with only a newspaper and see if he can start a fire using his mental powers. This is a direct test that can either support or refute his claim, unlike the other options which may not provide conclusive evidence.

Question 5

Which of the following objects can you use to roughly visualize a length of 1 meter?

Accepted Answer

The height of a kitchen counter is typically around 1 meter, making it a good rough visualization for this length. Option A is too small to visualize, option B is too small and not uniformly measurable, option C is too large, and option E is too long.

Question 6

In order to avoid cooking disasters, a numerical recipe has an advantage over purely verbal directions. That is, verbal directions can become longwinded and put the cook at risk of distraction. On the other hand, a numerical recipe like "two parts water to one part rice" is

Accepted Answer

A numerical recipe expressed as a ratio is useful for any amount of the ingredient, as long as the ratio is maintained. This makes it more versatile than a recipe expressed in specific amounts, and reduces the risk of error or distraction for the cook. The other options given are not relevant to the topic of cooking or recipes.

Question 7

Scientists generally agree that global warming has resulted mostly from an increase in what substance in the atmosphere?

Accepted Answer

Carbon dioxide is the main greenhouse gas responsible for global warming. When humans burn fossil fuels such as coal, oil, and gas, they release large amounts of carbon dioxide into the atmosphere, causing the planet's temperature to rise.

Question 8

If you start with the number 3.0 and move the decimal point one unit to the left, you wind up with 0.30. If you move the decimal point a total of five units to the left, the result is the same as that of dividing the original number by

Accepted Answer

Moving the decimal point five units to the left is the same as dividing by 10 to the fifth power, which is 10,000. Therefore, the result is 3.0 ÷ 10,000 = 0.0003, which is equivalent to 10^-3. The only answer choice that ends with five zeros after the decimal point is D, which represents 10^-15.

Question 9

The study of rainbows would fall under what subfield of physics?

Accepted Answer

Rainbows are formed due to the interaction between light and water droplets, which falls under the study of optics, a subfield of physics that deals with the behavior of light and its interaction with matter.

Question 10

Two different hypotheses are developed to explain why balls bounce. Experiments using basketballs show each hypothesis works equally well. To decide which one is more likely to be correct, you could

Accepted Answer

Trying an experiment using a different type of ball (baseballs) can help to further test the validity of the hypotheses and provide more evidence to support one over the other. Additionally, it is important to rely on empirical evidence from experiments rather than subjective factors like education or personal opinions.

Question 11

At night you get in your car to drive to the store. The car starts but none of the lights work. Which of the following activities would not be considered part of the scientific method?

Accepted Answer

Slamming the hood down hard is not a step in the scientific method. The scientific method involves making observations, stating a hypothesis, conducting experiments, and analyzing data to draw conclusions. Slamming the hood does not help in any of these steps.

Question 12

The liter is a metric unit of volume. The U.S. customary unit of volume most nearly equal to the liter is the

Accepted Answer

The quart is the U.S. customary unit of volume that is closest in measurement to the liter. One liter is equivalent to approximately 1.057 quarts. Cups and teaspoons are much smaller units of volume, while the gallon is a much larger unit.

Question 13

Which of the following units is not appropriate for measuring volume?

Accepted Answer

Centimeter is a unit of length, not volume.

Question 14

Suppose you are told that the force on a body (F) is given by the product of its mass (m) and the acceleration of the body (a). Which of the following mathematical equations is the correct expression of this relationship?

Accepted Answer

The correct expression for the force on a body given by the product of its mass and acceleration is F = m * a, which is represented by option D, despite the formatting errors.

Question 15

The metric unit most comparable in size to the English inch unit is the

Accepted Answer

A centimeter is the closest metric unit in size to an inch, with 1 inch being equal to approximately 2.54 centimeters.

Question 16

The numerical factor 10⁹ corresponds to what quantity?

Accepted Answer

10^9 corresponds to a billion, as it represents 1 followed by 9 zeros.

Question 17

Which of these is not important to the development of scientific explanations?

Accepted Answer

All of these - measurement, communication, and debate - are important for the development of scientific explanations. Accurate and precise measurement helps to ensure that data is reliable and can be used to support or disprove hypotheses. Communication of findings helps to disseminate new knowledge and promote further research. Debate and discussion among scientists allows for critical evaluation of evidence and helps to strengthen scientific ideas. Therefore, all three are crucial components in the development of scientific explanations.

Question 18

When trying to make sense of the universe, it is useful to study everyday physics of things you see in your hometown, even in your own kitchen, because

Accepted Answer

We expect the same laws govern physics in your hometown and everywhere else in the universe. Studying everyday physics can help us understand the fundamental principles that govern the universe. While we may not know all the physical principles that govern the universe outside of Earth, we can use what we learn from everyday objects to create models and theories about how the universe works. Astrology is not a science and has no governing principles in physics. And while you may be able to eat some experiments, this is not a primary reason for studying physics.

Question 19

The key distinction between explanations provided by science and religion is

Accepted Answer

The key distinction between scientific explanations and religious explanations is testability. Scientific explanations can be tested through empirical evidence and experimentation, while religious explanations cannot be empirically or experimentally tested.

Question 20

A scout steps off a distance of 120 steps. If each step is 70 cm, what is the distance in meters?

Accepted Answer

We can use the formula:

distance = number of steps x length of each step

Plugging in the numbers, we get:

distance = 120 steps x 70 cm/step

distance = 8400 cm

To convert to meters, we divide by 100:

distance = 84 m

Therefore, the answer is choice B (84 m).

Quiz 1: Physics, the Fundamental Science

The principal advantage of metric units over English units is that

When a scientist wants to strengthen a theory, she can make predictions of measurable events. The theory becomes stronger when

Which of the following is not a major subfield of physics?

A person claims that he can start fires by using his mental powers. If we start with the hypothesis that his claim is true, we can

Which of the following objects can you use to roughly visualize a length of 1 meter?

In order to avoid cooking disasters, a numerical recipe has an advantage over purely verbal directions. That is, verbal directions can become longwinded and put the cook at risk of distraction. On the other hand, a numerical recipe like "two parts water to one part rice" is

Scientists generally agree that global warming has resulted mostly from an increase in what substance in the atmosphere?

If you start with the number 3.0 and move the decimal point one unit to the left, you wind up with 0.30. If you move the decimal point a total of five units to the left, the result is the same as that of dividing the original number by

The study of rainbows would fall under what subfield of physics?

Two different hypotheses are developed to explain why balls bounce. Experiments using basketballs show each hypothesis works equally well. To decide which one is more likely to be correct, you could

At night you get in your car to drive to the store. The car starts but none of the lights work. Which of the following activities would not be considered part of the scientific method?

The liter is a metric unit of volume. The U.S. customary unit of volume most nearly equal to the liter is the

Which of the following units is not appropriate for measuring volume?

Suppose you are told that the force on a body (F) is given by the product of its mass (m) and the acceleration of the body (a) . Which of the following mathematical equations is the correct expression of this relationship?

The metric unit most comparable in size to the English inch unit is the

The numerical factor 10⁹ corresponds to what quantity?

Which of these is not important to the development of scientific explanations?

When trying to make sense of the universe, it is useful to study everyday physics of things you see in your hometown, even in your own kitchen, because

The key distinction between explanations provided by science and religion is

A scout steps off a distance of 120 steps. If each step is 70 cm, what is the distance in meters?

Quiz 1: Physics, the Fundamental Science

The principal advantage of metric units over English units is that

When a scientist wants to strengthen a theory, she can make predictions of measurable events. The theory becomes stronger when

Which of the following is not a major subfield of physics?

A person claims that he can start fires by using his mental powers. If we start with the hypothesis that his claim is true, we can

Which of the following objects can you use to roughly visualize a length of 1 meter?

In order to avoid cooking disasters, a numerical recipe has an advantage over purely verbal directions. That is, verbal directions can become longwinded and put the cook at risk of distraction. On the other hand, a numerical recipe like "two parts water to one part rice" is

Scientists generally agree that global warming has resulted mostly from an increase in what substance in the atmosphere?

If you start with the number 3.0 and move the decimal point one unit to the left, you wind up with 0.30. If you move the decimal point a total of five units to the left, the result is the same as that of dividing the original number by

The study of rainbows would fall under what subfield of physics?

Two different hypotheses are developed to explain why balls bounce. Experiments using basketballs show each hypothesis works equally well. To decide which one is more likely to be correct, you could

At night you get in your car to drive to the store. The car starts but none of the lights work. Which of the following activities would not be considered part of the scientific method?

The liter is a metric unit of volume. The U.S. customary unit of volume most nearly equal to the liter is the

Which of the following units is not appropriate for measuring volume?

Suppose you are told that the force on a body (F) is given by the product of its mass (m) and the acceleration of the body (a) . Which of the following mathematical equations is the correct expression of this relationship?

The metric unit most comparable in size to the English inch unit is the

The numerical factor 109 corresponds to what quantity?

Which of these is not important to the development of scientific explanations?

When trying to make sense of the universe, it is useful to study everyday physics of things you see in your hometown, even in your own kitchen, because

The key distinction between explanations provided by science and religion is

A scout steps off a distance of 120 steps. If each step is 70 cm, what is the distance in meters?

The numerical factor 10⁹ corresponds to what quantity?