Unit PEF Activity 4 To show and then play a movie, click on the arrow or the movie title/description. Repeat to hide it. Exploration #1, STEP 1: Measuring the speed of a falling ball Exploration #1, STEP 1: Measuring the speed of a falling ball Exploration #1, STEP 2: Materials that interact with a magnet <Exploration #1, STEP 2: Materials that interact with a magnet Exploration #1, STEP 2: Falling ball and feather Exploration #1, STEP 2: Falling ball and feather Exploration #1, STEP 2: Hanging ball on a rotating table Exploration #1, STEP 2: Hanging ball on a rotating table Return to Unit PEF Resources Page Copyright © 2020 Next Gen PET