This document discusses gravity, weight, and weightlessness. It provides the formulas for calculating weight based on mass and gravitational acceleration. Your weight depends on the gravitational pull of the planet you are on. With no gravitational pull, you experience a state of weightlessness or neutral buoyancy. The document uses these concepts to calculate weight on different planets like Saturn based on their gravitational acceleration.

1. How to lose weight without going on a diet! Sarah Pitfield Gravity and Weight

2. Force = mass x acceleration Weight = Force of an object due to gravity Acceleration due to gravity on earth = 9.8m/s 2 1 N = 1 Kg m/s 2 1 N = 0.225 lbs Using this information how would you determine your mass (in Kg) if you know your weight (in pounds)?

3. Weight in Space Weight = mass x acceleration Differences in gravitational pull result in differences in weight.

4. What is your weight on Saturn? Calculate you weight on Saturn. Acceleration due to gravity on Saturn = 11.2 m/s 2

5. Weightlessness In space there is a lack of gravitational pull. This results in a condition of weightlessness or neutral buoyancy .

6. Neutral Buoyancy on Earth Scuba divers control their breathing to maintain neutral buoyancy. Astronauts simulate space conditions underwater.

7. Summary Force (N) = mass (Kg) x acceleration (m/s 2 ) Weight (lbs) = [mass (Kg) x gravity (m/s 2 )] x (0.225lbs/N) Thus, your weight on different planets depends on the gravitational pull from those planets. When there is no gravitational pull you are in a state of neutral buoyancy.

8. Next Steps Questions? Homework Read pages x-xx about gravity and weight. Complete the worksheet to calculate your weight on the moon and other planets.