Heart rates increase during exercise. The heart rates of physically fit people increase less during exercise than those of less fit people. The heart rates of physically fit people recover to their resting rates more rapidly. In this experiment, you ...

The goal of this activity is for students to recognize that the work done by gravity is another way to understand gravitational potential energy. Students develop a model to predict the energy present in a system due to its position. Physics texts...

The goal of this activity is for students to experiment with static electricity and develop a model that describes charge transfer. In the Preliminary Observation, students observe a basic demonstration of an electrostatically charged balloon. ...

The goal of this activity is for students to develop an understanding of how voltage behaves in a circuit involving resistors in both series and parallel configurations. In the initial observation, students observe a circuit consisting of a single...

Color affects the absorption of radiant energy. You can use the results of this experiment to better dress for the season—to keep cooler in the summer and warmer in the winter. Home designers and city planners use the principles being studied to de...

In this simple experiment, you will use a Gas Pressure Sensor and a gas syringe to study the relationship between gas pressure and volume. Temperature and amount of gas will be kept constant. The results will be expressed in words, in a table, with a...

Gases are made up of tiny particles. The particles are in constant motion and exert pressure when they strike the walls of their container. In this simple experiment, you will use a computerinterfaced pressure sensor and an air sample in a stoppered ...

You may have noticed that a light source appears to be brighter when you are close to it and dimmer when you are farther away. This is because the amount of the light that enters your eye increases as you move closer to the light source. There are...

The slope of a line describes its steepness. The numerical value of the slope can represent a number of other important mathematical concepts. Given any two points on a line, (x1, y1) and (x2, y2), the slope of that line can be computed using the for...

How tall are students in your class? Is there anyone especially tall? Or short? What is the average height of your classmates? One way to answer these questions is to measure the height of everyone in the class and then analyze the data statistically...