Table 2.1 contains information about the fictional planet Vulcan.
| mass | 4.8 × 1023 kg |
| gravitational field strength at surface | 4.2 N/kg |
| average density | 4400 kg/m3 |
Define gravitational field strength.
An object has a weight of 55 N at the surface of the Earth. Taking the gravitational field strength on Earth to be 9.8 N/kg, calculate the weight of the object at the surface of Vulcan.
Calculate the volume of Planet Vulcan.
A scientific rover is tested on Earth. The rover is travelling at a constant speed in a straight line. The forward driving force on the rover is 45 N.
State the magnitude and direction of the resistive forces acting on the rover.
The atmosphere on Vulcan is extremely thin, so air resistance is negligible compared to Earth. The same driving force of 45 N is exerted on the rover on Vulcan. State the effect this has on the resultant force on the rover.
State the relationship between resistive forces, driving force, and resultant force.
209 exam-style questions on CIE IGCSE Physics Mass and weight, covering Mass and weight. Each one has a worked solution and a mark scheme showing where the marks go.