Lesson: Weight and Mass
In this lesson, we will learn how to calculate the weight of an object given its mass and its distance from an astronomical body.
Sample Question Videos
Worksheet: 9 Questions • 2 Videos
A body of mass kg was weighed, using a spring scale, at the north pole and at the equator. Assuming m/s2 at the north pole and m/s2 at the equator, what was the difference in the two readings?
How much does the suited astronaut weigh on Earth?
What is the mass of the suited astronaut on the Moon?
What is the mass of the suited astronaut on Earth?
Astronauts in orbit are apparently weightless. This means that a clever method of measuring the mass of astronauts is needed to monitor their mass gains or losses, and adjust their diet. One way to do this is to exert a known force on an astronaut and measure the acceleration produced. Suppose a net external force of 50.0 N is exerted, and an astronaut’s acceleration is measured to be 0.893 m/s2. Calculate her mass.