When the astronauts walked on the moon forty years ago (1969), they actually weighed less on the Moon than they did on Earth. Your weight is determined by your mass (mass is a measurement of how much matter is in an object) multiplied by the force of gravity on that celestial object. Earth has a gravitational pull (force) of 9.8 m/s2. All the planets in our solar system have a different force of gravity. The more mass a planet has, the stronger its gravitational force. As a result, a person would weigh more or less (depending on the planet’s mass) than they do on Earth. Find your weight on the following celestial objects found in our solar system.
In this lab, students will work in partners. Each group needs a meter stick to measure how high they can jump. Based on how high they can jump on Earth, they will calculate how high they can jump on other planets. Then, students will answer post-lab questions.