CHAPTER 1 OVERVIEW AND DEFINITIONS (ATPL OXFORD)

1. An aircraft's mass is a result of:

How much matter it contains

2. The unit of mass is the:

Kilogram

3. The definition of a force is

A push or a pull

4. The unit of force is the:

Newton

5. The unit of weight is the:

Newton

6. Weight is the result of

The force on mass due to gravity

7. About which point does an aircraft rotate:

centre of gravity

8. If a force is applied to a mass and the mass does not move

No work is done

10. The unit of power is called the:

Watt

9. The unit of work is called the:

Joule

11. If a force of 20 Newton's moves a mass 5 metres:

1 - the work done is 100 Nm

2 - the work done is 100 Joules

3 - the work done is 4 Joules

4 - the work done is 0.25 Joules

The correct statements

1 and 2

12. If a force of 50 Newton's is applied to a 10 kg mass and the mass moves 10 metres and a force of 50 Newton's is applied to a 100 kg mass which moves 10 metres:

The work done is the same in both cases

13. The definition of power is:

The rate of doing work

14. If a force of 500 Newton's moves a mass 1000 metres in 2 mins, the power used is:

4167 Watts

15. Kinetic energy is:

The energy a mass possesses because of its motion

16. The unit of kinetic energy is the:

Joule

17. When considering kinetic energy:

2 and 4

The property of inertia is said to be:

The opposition which a body offers to a change in motion

Considering Newton's first law of motion:

3 and 4

20. Considering Newton's second law of motion:

1 - every action has an equal and opposite reaction

2 - if the same force is applied, the larger the mass the slower the acceleration

3 - if two forces are applied to the same mass, the bigger the force the greater the acceleration

4 - the acceleration of a body from a state of rest, or uniform motion in a straight line, is proportional to the applied force and inversely proportional to the mass The combination of true statements is:

2, 3 and 4

21. Newton's third law of motion states:

Every action has an equal and opposite reaction

22. The definition of velocity is the:

Rate of change of displacement

23. When considering acceleration:

1 - acceleration is the rate of change of velocity

2 - the units of acceleration are metres per second

3 - the units of acceleration are kilogram-metres per second

4 - the units of acceleration are seconds per metre per metre

The combination of correct statements is:

1 only

24. The definition of momentum is:

The quantity of motion possessed by a body

25. A force of 24 Newton's moves a 10 kg mass 60 metres in 1 minute, the power used is:

1 - 24 Watts

2 - 240 Watts

3 - Force times distance moved in one second

4 - Force times the distance the mass is moved in one second

Which of the preceding statements are correct

1, 3 and 4

26. When considering momentum:

1 - Momentum is the quantity of motion possessed by a body

2 - Momentum is the tendency of a body to continue in motion after being placed in motion

3 - A mass of 2000 kg moving at 55 m/s has 110,000 kg-m/s of momentum

4 - A large mass moving at 50 m/s will have less momentum than a small mass moving at 50 m/s

The correct combination of statements is:

1, 2 and 3