U2 Physics

This simple lab allows the students to practice on the concept of work and power using their own body. Students will calculate the work done when lifting a 500g metal cylinder several times. Students will collect and graph data and determine the power of their hand by determining the slope of the line in the Work vs. time graph.Students then will use the information from the data and the graph to calculate the number of repetitions needed to use the energy equivalent to a hot dog.

Use a ripple tank and a wave generator to measure the speed of a ripple in a ripple tank. Students will be able to set three or more different values of frequency on the wave generator, and them take a picture of the waves produced using a digital camera. with the picture the students can measure the wavelength of the waves, and plot a graph of frequency versus inverse of wavelength. The slope of the line represents the speed of the wave. will the speed of the wave be affected by changes in the

Students will practice on adding the following force vectors using the components method, graphically and analytically. Students may determine the percent difference between the numerical results to compare the values. Teachers may give extra credit to students with e percent difference less than 2%, or so. Students may work on this activity in groups to make it more competitive. This activity is target to students in Pre AP Physics or AP Physics class.