TUTORIAL 1 1. Give example of a measurement which is (a) accurate but not precise (b) precise but not accurate 2. The density of a substance is the mass per unit volume of the substance. Give the possible SI unit for density. 3. Express the following numbers in scientific notations (a) 5 000 000 000 000 000 000 000 000 m (b) 0.000 000 000 000 000 000 166m (c) 2 033 000 000m (d) 0.000 000 103 0 m 4. Convert each of the measurements into meters (a) 42.3 m (b) 6.2 pm (c) 21km (d) 0.023 mm (e) 214 µm (f) 570 nm 5. State the number of significant digits in the following measurements (a) 248 m (b) 0.000 03m (c) 80.001 m 6. Ahmad did the following problems in his calculator , reporting the results shown below. Give the answer to each using the correct number of significant digits (a) 5.32 mm + 2.1 mm + 7.4200000 mm (b) 13.597 m x 3.65 = 49.6290500 m 2 (c) 83.2 kg – 12.804 kg = 70.3960000kg
1.Give example of a measurement which is (a)accurate but not
precise(b)precise but not accurate
2.The density of a substance is the mass per unit volume of the
substance. Give the possible SI unit for density.
3.Express the following numbers in scientific notations(a)5 000
000 000 000 000 000 000 000 m(b)0.000 000 000 000 000 000 166m(c) 2
033 000 000m(d)0.000 000 103 0 m
4.Convert each of the measurements into meters(a)42.3 m (b)6.2
pm(c)21km(d)0.023 mm(e)214 m(f)570 nm
5.State the number of significant digits in the following
measurements(a)248 m(b)0.000 03m(c)80.001 m
6.Ahmad did the following problems in his calculator , reporting
the results shown below.Give the answer to each using the correct
number of significant digits(a)5.32 mm + 2.1 mm + 7.4200000
mm(b)13.597 m x 3.65 = 49.6290500 m2(c)83.2 kg 12.804 kg =
70.3960000kg
