Unit 0.1 Proportions notes check

What do equations in physics allow scientists to do?

• Describe relationships between two physical variables and predict changes

• Measure the weight of objects

• Calculate the speed of light

• Determine the color of a substance

What can each equation generate that helps in predicting future and past values?

• A graph

• A table

• A diagram

• A chart

What is an inverse relationship?

• When two variables increase together

• When two variables decrease together

• When two variables have arrows in the same direction

• When increasing one variable decreases the other or vice-versa

Which of the following equations represents an inverse relationship?

• y = x + 1

• y = 2x

• y = 1/x

In an inverse relationship, if variable B increases, what happens to variable A?

• A increases

• A decreases

• A remains constant

• A doubles

In the equation y = mx, what does the 'm' represent?

• A variable that changes.

• The Slope

• A squared term.

• A negative number.

What happens to variable A if variable B increases in a direct relationship?

• A decreases.

• A remains constant.

• A increases.

• A becomes zero.

In a direct relationship graph, what happens to variable A if variable B increases?

• A decreases

• A remains constant

• A increases

• A becomes zero

What is a direct square root relationship?

• When the arrows in the equation point in the same direction, but one of the variables is under a square root

• When both variables are squared

• When the arrows in the equation point in opposite directions

• When neither variable is under a square root

What happens to variable A if variable B increases in a direct square root relationship?

• A increases significantly

• A decreases

• A increases but not by much

• A remains constant