Practice Mass in Physics
Use these practice problems to test your method after reviewing the concept explanation and worked examples.
Quick Recap
The amount of matter in an object; a measure of how much it resists acceleration.
How 'heavy' something feels when you try to push it, regardless of gravity.
Example 1
easyAn object has a weight of 49 \text{ N} on Earth where g = 9.8 \text{ m/s}^2. What is the mass of the object?
Example 2
mediumAn astronaut has a mass of 75 \text{ kg}. What would their weight be on the Moon where g_{\text{moon}} = 1.6 \text{ m/s}^2? Compare this to their weight on Earth (g = 9.8 \text{ m/s}^2).
Example 3
easyA net force of 30 \text{ N} accelerates an object at 6 \text{ m/s}^2. What is the mass of the object?
Example 4
easyA toolbox weighs 72 \text{ N} on a planet where g = 12 \text{ m/s}^2. What is its mass?