Owner manual

SEK Mechanics U8501000

Elwe Didactic GmbH • Steinfelsstr. 6 • 08248 Klingenthal • Germany • www.elwedidactic.com

3B Scientific GmbH • Rudorffweg 8 • 21031 Hamburg • Germany • www.3bscientific.com

Subject to technical amendments

Contents

1 1 Multiple pulley

2 1 Plastic pulley, d = 40 mm

3 1 Block and tackle with two pulleys and one

hook

4 1 Block and tackle with two pulleys and two

hooks

5 1 Axle rod

6 2 Stand rods, short

7 1 Coil spring with 2 eyelets

8 1 Adjustable bracket

9 1 Body for friction and inertia experiments

10 1 Rolling pin with add-on weights

11 1 Magnetic base

12 1 Leaf spring, 330 mm

13 2 Hangers for scale pans

14 2 Pointers

15 1 Twine, 100 m

16 1 Dynamometer, 1 N

17 1 Dynamometer, 2 N

18 2 S-shaped hooks, 1 g

19 2 S-shaped hooks, 2 g

20 2 S-shaped hooks, 5 g

21 1 Stand rod with external thread

22 2 Stand rods with external and internal thread

23 4 Weights, 25 g

24 1 Weight, 50 g

25 1 Weight, 100 g

26 2 Double clamps

27 1 Measuring cylinder

28 1 Plastic strip, small

29 1 Plastic strip, large

30 1 Plastic strip, medium size

31 2 Weighing pans

32 1 Scale for balance

33 1 Beam balance

34 1 Ruler

35 3 Strips of velour paper

36 1 Set square

37 4 O-rings

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SEK Mechanics U8501000 Contents 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1 Multiple pulley 1 Plastic pulley, d = 40 mm 1 Block and tackle with two pulleys and one hook 1 Block and tackle with two pulleys and two hooks 1 Axle rod 2 Stand rods, short 1 Coil spring with 2 eyelets 1 Adjustable bracket 1 Body for friction and inertia experiments 1 Rolling pin with add-on weights 1 Magnetic base 1 Leaf spring, 330 mm 2 Hangers for scale pans 2 Pointers 1 Twine, 100 m 1 Dynamometer, 1 N 1 Dynamometer, 2 N 18
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SEK Mechanics/Transformation of Forces Work sheet M201 First class levers Exercise x Investigate the conditions for equilibrium of a first-class lever. Note: a body of mass 100 g gives rise to a force of approximately 1 N (rounded up) as a result of its weight. Basic principles D d1 A first-class lever is one in which forces act on either side of the fulcrum D. The horizontal distances from the fulcrum at which the forces act are d1 and d2.
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Mechanics/M401 Work sheet SEK Sub-experiment 1: Evaluation Table 1: Length of pendulum d = 0.60 m Weight of pendulum bob m in kg Time in s for 10 oscillations Period of oscillation T in s 0.025 15.6 1.56 0.050 15.4 1.54 0.075 15.5 1.55 Select the correct answer: 1) Compare the periods of oscillation.