1.
When it comes to automobiles what are the two gauges that clearly describe the use of derivatives in that industry?
Correct Answer
B. The odometer and the speedometer
Explanation
The two gauges that clearly describe the use of derivatives in the automobile industry are the odometer and the speedometer. The odometer measures the distance traveled by a vehicle, which is a derivative of its speed over time. The speedometer measures the instantaneous speed of the vehicle, which is the derivative of its position with respect to time. Both gauges rely on the concept of derivatives to provide accurate and relevant information to the driver.
2.
In economics how can derivatives be applied?
Correct Answer
B. With the use of an excel graph.
Explanation
Derivatives can be applied in economics by using an excel graph. Excel graphs allow for the representation and analysis of data, making it easier to measure and understand the variations and fluctuations in economic data. By plotting the data points on an excel graph, economists can visually analyze the trends, patterns, and changes over time. This helps in making informed decisions and predictions regarding the economy, investments, and financial markets.
3.
How are derivatives used in geology?
Correct Answer
B. When calculating the rate of heat flow.
Explanation
Derivatives are used in geology to calculate the rate of heat flow. This is because the rate of heat flow can be determined by measuring the temperature gradient across a rock layer and applying the derivative concept. By calculating the derivative of the temperature with respect to depth, geologists can determine how heat is being transferred through the Earth's crust. This information is crucial for understanding geological processes such as plate tectonics, volcanic activity, and the formation of mineral deposits.
4.
What's an example of how the government constantly uses derivatives?
Correct Answer
A. In census
Explanation
The government constantly uses derivatives in census. This is because derivatives are financial instruments that derive their value from an underlying asset, and in the case of census, the government uses various statistical methods and models to estimate population size and demographics. These methods involve collecting and analyzing data from a sample of the population and then extrapolating the results to the entire population. This process can be seen as a derivative of the actual population, as it is based on statistical calculations and estimates rather than a direct count of every individual.
5.
What type of weapon uses derivatives here?
Correct Answer
C. A radar gun
Explanation
A radar gun is the type of weapon that uses derivatives. The term "derivatives" refers to the mathematical concept of calculating the rate of change of a function. In the context of a radar gun, derivatives are used to measure the speed of an object by calculating the change in position over time. This allows law enforcement officers to detect and measure the speed of vehicles, making radar guns a type of weapon that utilizes derivatives.
6.
Why are derivatives used in physics?
Correct Answer
C. To measure velocity.
Explanation
Derivatives are used in physics to measure velocity because velocity is defined as the rate of change of displacement with respect to time. By taking the derivative of the displacement function, we can determine the instantaneous rate of change of position, which gives us the velocity at any given point in time. This allows us to study and analyze the motion of objects in various physical systems.
7.
Who is responsible for developing the rules behind derivatives?
Correct Answer
B. Newton
Explanation
Newton is responsible for developing the rules behind derivatives. He is widely regarded as the founder of calculus, which includes the study of derivatives. Newton's work on calculus laid the foundation for modern mathematics and physics, and his rules for differentiation are still used today to solve problems involving rates of change and optimization.
8.
How can you use derivatives in the business field?
Correct Answer
A. To measure the variation in profit.
Explanation
Derivatives can be used in the business field to measure the variation in profit because they provide a way to calculate the rate of change of profit over time. By using derivatives, businesses can analyze how their profit is changing and make informed decisions based on this information. This can help them identify trends, anticipate future profit levels, and adjust their strategies accordingly.
9.
What can a derivative help you find when a function continuous?
Correct Answer
C. A maximal value
Explanation
A derivative can help you find a maximal value when a function is continuous. The derivative represents the rate of change of the function at any given point. By finding the critical points, where the derivative is equal to zero or undefined, and analyzing the behavior of the derivative around these points, you can determine if the function has a maximum value at any of these points. Therefore, a derivative can be used to find the maximal value of a continuous function.
10.
What's the principle behind Newton's method?
Correct Answer
B. It's to get a sequence of numbers that are getting very close to the actual solution.
Explanation
Newton's method is a numerical approximation technique used to find the roots of a function. It works by iteratively improving an initial guess of the root by using the function's derivative. The principle behind Newton's method is to generate a sequence of numbers that are getting very close to the actual solution, or the root of the function. By using the derivative, the method can converge quickly towards the root, providing an accurate approximation.