Q1. How much would an 80.0 kg person weight (a) on Mars, where an acceleration of gravity is 3.93 m/s2, and (b) on Earth's Moon, where the acceleration of gravity is 1.63 m/s2?

Q2. A 172 ball is tied to a string. It is pulled to an angle of 3.30 and released to swing as a pendulum. A student with a stopwatch finds that 15 oscillations take 18.5.

Q3. A 220 g air-track glider is attached to a spring. The glider is pushed in 12cm against the spring, and then released. A student with a stopwatch finds that 16 oscillations take 11.5.