Name ___________________________________ Period ____________ Date ____________ I Physics WEIGHT-MASS PROBLEMS Solve each of the following problems using the relationship SHOW ALL WORK and include proper units. Acceleration of gravity = -9.800 m/s2 1. An object has a mass of 15.0-kg. What is its weight? 2. A car weighs 15,590. N. What is the car’s mass? 3. What would be the acceleration of gravity on a planet if the mass of a person is 250.-kg and his weight is 6,625 N? 4. An elephant weighs 89,000. N on Earth. How much would the elephant weigh on Jupiter if the acceleration of gravity on Jupiter is 2.7 times what it is on earth? 5. If a physics student has a mass of 122,000. grams, what is her weight? 6. What is the mass of a bus on earth, in grams, if the bus has a mass of 13,605.-kg on the moon? 7. What is the mass of an astronut on the moon if he weighs 888 N on earth? 8. If a refrigerator weighs 1,111 N on Earth, what is the mass of the refrigerator on Mars? 9. A science text book has a mass of 2,500. grams. What is its weight? 10. If a gymnast weighs 528 N on Saturn and 440. N on Earth, what is the mass of the gymnast?