PHYSICS 11 GRAPHING & MEASUREMENT WORKSHEET 1
1.
Explain how we can tell the difference between dependent and independent values for
a set of data.
2.
Explain why error targets do not need to be changed on a regraph.
3.
Determine the slope and equation for the following graphs:
a) F (Newtons)
b) v (m/s)
15.0
24.5
4.2
2.5
c)
m (kg)
V (Volts)
7.3
t (s)
d) E (Joules)
130
15
75
25 I (Amps)
16
v2 (m/s2)
4.
A straight line regraph produces the formula P = 17.1 T . Solve the following:
a) If T = 39.2 calculate P.
b) If T = 2.4 x 10-4 calculate P.
c) If P = 48.4 calculate T.
d) If P = 4.2 x 105 calculate T.
5.
From a straight-line regraph you obtain a value of A = 3.45r2 when the expected
result is A = 3.14r2. Calculate the % error. Is this an acceptable result? Explain.
6.
Construct proper graphs and/or regraphs of the following data, being sure to calculate
the correct formula:
a)
b)
c)
Surface
time
length
speed  2
time  .2
Area  20 Radius
(s)
(cm)
(cm)
(cm/s)
(s)
(cm2)
20
0
20
1.05
320
5
40
1
70
1.70
612
7
65
2
130
2.26
1020
9
80
3
150
2.58
115
3
104
4
170
2.67
800
8
125
5
200
2.72
1260
10
1. independent value is usually more accurate 2. y-values are unchanged 3. a) F = 9.8m b) v = 1.5t + 4.2
c) V = -0.6I + 15 d) E = 3.4v2 + 75 4. a) 107 b) 0.26 c) 8.0 d) 6.03 x 10 8 5. 9.9%, < 10% so yes
6. (answers are approximate) a) v = 21t + 20 b) T = 0.20 L c) S.A. = 12.5r2