As level physics notes

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CONTENT PAGE
S/NO CHAPTER PAGE NO
SECTION I: MEASUREMENT 3
1 Measurement 4
SECTION II: NEWTONIAN MECHANICS 9
2 Kinematics 10
3 Dynamics 11
4 Forces 14
5 Work, Energy and Power 16
6 Motion in a Circle 18
7 Gravitational Field 19
8 Oscillations 23
SECTION III: THERMAL PHYSICS 27
9 Thermal Physics 28
SECTION IV: WAVES 31
10 Wave Motion 32
11 Superposition 35
SECTION V: ELECTRICITY & MAGNETISM 40
12 Electric Fields 41
13 Current of Electricity 45
14 D.C. Circuits 49
15 Electromagnetism 53
16 Electromagnetic Induction 58
17 Alternating Currents 63
SECTION VI: MODERN PHYSICS 65
18 Quantum Physics 66
19 Lasers & Semiconductors 71
20 Nuclear Physics 74
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SECTION I
MEASUREMENT
- PAGE 3 -…read more

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Chapter 1: Measurement
- SI Units
- Errors and Uncertainties
- Scalars and Vectors
a. Recall the following base quantities and their units; mass (kg), length (m), time (s), current (A),
temperature (K), amount of substance (mol).
SI Units
Base Quantities
Name Symbol
Length metre m
Mass kilogram kg
Time second s
Amount of substance mole mol
Temperature Kelvin K
Current ampere A
Luminous intensity candela cd
b.…read more

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Show an understanding of and use the conventions for labelling graph axes and table columns as
set out in the ASE publication SI Units, Signs, Symbols and Systematics (The ASE Companion to 5-
16 Science, 1995).
Self-explanatory
d. Use the following prefixes and their symbols to indicate decimal sub-multiples or multiples of both
base and derived units: pico (p), nano (n), micro (), milIi (m), centi (c), deci (d), kilo (K), mega (M),
giga (G), tera (T).…read more

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D The volume of air in a Estimating the width of a tyre, t, is
3
car tyre is 0.03 m . 15 cm or 0.15 m, and estimating R
to be 40 cm and r to be 30 cm,
R
volume of air in a car tyre is
2 2
= (R ­ r )t
2 2
r = (0.4 ­ 0.3 )(0.15)
3
= 0.033 m
3
0.03 m (to one sig. fig.)
f.…read more

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For eg, suppose g has been initially calculated to be 9.80645 m s & g has been initially calculated to be
-2
0.04848 m s . The final value of g must be recorded as 0.05 m s {1 sf }, and the appropriate recording of
-2 -2
g is (9.81 0.05) m s .
-2
i. Distinguish between scalar and vector quantities, and give examples of each.
Type Scalar Vector
Definition A scalar quantity has a magnitude only.…read more

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Using sine rule, sin A = sin B
R = 3.2 N ( 3.2 cm)
at = 112 to the 4 N vector.
0
6 3.23
= sin 30°
sin
= 68° or 112°
= 112° to the 4 N vector
Summing Vector Components
0
Fx = - 6 sin 30
Y =-3N
6.0 N
0
Fy = 6 cos 30 - 4
= 1.2 N
2 2
R = (-3) + (1.2)
o = 3.23 N
30
X
1.…read more

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SECTION II
NEWTONIAN MECHANICS
- PAGE 9 -…read more

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Chapter 2: Kinematics
- Rectilinear Motion
- Non-linear Motion
a. Define displacement, speed, velocity and acceleration.
Distance: Total length covered irrespective of the direction of motion.
Displacement: Distance moved in a certain direction
Speed: Distance travelled per unit time.
Velocity: is defined as the rate of change of displacement, or, displacement per unit time
{NOT: displacement over time, nor, displacement per second, nor, rate of change of
displacement per unit time}
Acceleration: is defined as the rate of change of velocity.
b.…read more

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B WITH AIR RESISTANCE
Highest point
v
Terminal velocity
Moving up
gradient =
9.81
Moving down
t
If air resistance is NOT negligible and if it is projected upwards with the same initial velocity, as the body
moves upwards, both air resistance and weight act downwards. Thus its speed will decrease at a rate
-2
greater than 9.81 m s . This causes the time taken to reach its maximum height reached to be lower
than in the case with no air resistance.…read more

Comments

princealiraza46

thank you


OliverMentel

Thanks so much! 

Super Unicorn

THANK YOU ! :)

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