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6. What unit is momentum usually measured in?
7. What is the equation for momentum?
- Mass x Speed
- Weight x Velocity
- Mass x Velocity
- Speed x velocity
8. If a car's engine exerts a bigger force forwards than the drag force backwards, what will happen?
- The car will stop
- The car will accelerate
- The car will travel at a constant speed
- The car will slow down
- The car will travel forwards
9. Jet Aircraft part A. - If a jet aircraft is moving at a constant speed and altitude, what factor applies to all of the forces?
- The acting forces are constant
- The counter forces are greater to allow the aircraft to travel
- The resultant forces are equal to the relevent acting forces
- The counter forces are lower
10. Jet Aircraft part B. - Accordingly to part A. If the weight of the aircraft is 250,000N, what is the upwards force (the lift)
- Lower
- Equal - 250,000N
- Greater