# Physics: Mechanics Module 1

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1. State the unit for the quantity: mass
kilogram (kg)
2. State the unit for the quantity:  length
metre (m)
3. State the unit for the quantity: time
second (s)
4. State the unit for the quantity: temperature
kelvin (K)
5. State the unit for the quantity: electrical current
ampere (A)
6. State the unit for the quantity: amount of substance
mole (mol)
7. State the multiple (power of 10) for the prefix: tera-
1012
8. State the multiple (power of 10) for the prefix: tera-
109
9. State the multiple (power of 10) for the prefix: mega-
106
10. State the multiple (power of 10) for the prefix: kilo-
103
11. State the multiple (power of 10) for the prefix: centi-
10-2
12. State the multiple (power of 10) for the prefix: milli-
10-3
13. State the multiple (power of 10) for the prefix: micro-
10-6
14. State the multiple (power of 10) for the prefix: nano-
10-9
15. State the multiple (power of 10) for the prefix: pico-
10-12
16. State the multiple (power of 10) for the prefix: femto-
10-15
17. State the multiple (power of 10) for the prefix: atto
10-18
18. SCALAR quantity
has magnitude ONLY and is completely described by a number and appropriate units.
19. VECTOR quantity
has both magnitude (size) and direction stated to be completely described
20. List 6 vector quantities
• Velocity
• Displacement
• Acceleration
• Force
• Weight
• Momentum
21. List 8 scalar quantities
• speed
• distance
• mass
• time
• density
• energy
• power
• temperature
22. In scale drawing, arrows should be drawn ............. to ..............
23. What is the alternative to scalar drawing?
Pythagoras or trigonometry
24. When asked for the resultant, which two pieces of information should you give in your answer
The force/magnitude (length of the line) and direction (the angle)
25. A vector is resolved by which metod (finding x and y values)
Trigonometry - Cos and Sin mainly
26. An object is in equilibrium if
The forces acting in all directions are equal and so the resultant is 0
27. Displacement is
the straight line distance from any given point in a stated direction
28. Instantaneous speed is
the speed at a given instant of time
29. Average speed=
Average speed = Distance / Time
30. Velocity=
Velocity = Displacement / Time
31. Acceleration=
Acceleration = Change in Velocity / Time
32. On a velocity-time graph a horizontal line represents
Constant velocity, no acceleration
33. On a velocity-time graph a straight line slope shows
constant acceleration
34. On a displacement-time graph a horizontal line represents
Stationary object, no velocity
35. A displacement-time graph with a straight line slope shows
positive/negative constant velocity
36. How can you find displacement from a velocity-time graph?
Area under the curve
37. In SUVAT equations, what does s stand for?
Displacement
38. In SUVAT equations, what does u stand for?
Initial velocity
39. In SUVAT equations, what does v stand for?
Final velocity
40. In SUVAT equations, what does a stand for?
Acceleration
41. In SUVAT equations, what does t stand for?
Time
42. List the four SUVAT equations
• s = ut + 1/2at2
• v = u + at
• s = 1/2(u + v)t
• v2 = u+ 2as
43. Gravity is s_ _ _ _ _ _ _ _ _ _
symmetrical
44. Acceleration due to gravity is
9.81ms-2
 Author: jpopat ID: 173869 Card Set: Physics: Mechanics Module 1 Updated: 2012-12-23T14:33:52Z Folders: Description: AS Physics: Mechanics Module 1 Show Answers: