# Physics experiments on the mechanics of solid bodies

## Mechanics set for pupils

Possibility to tie in with mathematics:

• Use of age-appropriate statistics when evaluating
• Testing for proportional correlations
• Introduction of vector summation with overlapping forces.
A geometric analysis is included in the manual.
• Link to the angular function

This kit covers the following basic laws of physics:

• Newton’s 1st law
• Hooke’s law
• Archimedes law of the lever
• Golden rule of mechanics

item number 43010

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experiments
• 1 - Hooke’s law

### experiment "Hooke’s law"

In this experiment, the elongation of a spring as a function of the force exerted on the spring is investigated.

• 2 - Laws of levers – 1st class levers

### experiment "Laws of levers – 1st class levers"

On the two-sided lever, the leverage law is clarified.

• 3 - Static and dynamic friction

### experiment "Static and dynamic friction"

Sliding and static friction are investigated as a function of the normal force, the coefficient of friction and the contact surface. The measurement data are statistically evaluated in a student-friendly manner.

• 4 - Elastic deformation – leaf springs

### experiment "Elastic deformation – leaf springs"

In the elastic deformation of a leaf spring, it is investigated whether there is a linear relationship between the deflection of the leaf spring and the attacking force.

• 5 - Plastic deformation – sand

### experiment "Plastic deformation – sand"

In the plastic deformation of sand, it is investigated whether the crater diameter generated when a steel ball falls into sand depends linearly on the fall height.

• 6 - Golden rule of mechanics – Block and tackle

### experiment "Golden rule of mechanics – Block and tackle"

The Golden Rule of Mechanics is developed at the stations fixed roll, loose roll and pulley.

• 7 - Spring dynamometers, acceleration due to gravity, weight

### experiment "Spring dynamometers, acceleration due to gravity, weight"

The use of a force gauge is learned when determining the weight force. The location factor is introduced or repeated. Finally, when comparing the measured values with theoretical values, the accuracy of the force gauge is discussed.

• 8 - Addition of forces

A tensioned rope is pulled with a force gauge. Thus, three forces attack at one point, which can be added very precisely with the force parallelogram. The structure is very easy to adjust, so that many different configurations can be investigated.

• 9 - Centre of gravity and equilibrium

### experiment "Centre of gravity and equilibrium"

The center of gravity, or more precisely a heavy axis, of an arbitrarily shaped disc is determined experimentally. Subsequently, the static equilibrium of the disk is examined.

• 10 - Laws of levers – 2nd & 3rd class levers

### experiment "Laws of levers – 2nd & 3rd class levers"

On the one-sided lever, the leverage law is clarified.

• 11 - Inclined planes

### experiment "Inclined planes"

With a measuring carriage on an inclined plane, the slope driving force is determined for different angles of inclination and different wagon masses.

• 12 - Golden rule of mechanics – Fixed pulley

### experiment "Golden rule of mechanics – Fixed pulley"

The Golden Rule of Mechanics is developed at the stations fixed roll, loose roll and pulley.

• 13 - Golden rule of mechanics – Loose pulley

### experiment "Golden rule of mechanics – Loose pulley"

The Golden Rule of Mechanics is developed at the stations fixed roll, loose roll and pulley.

• 14 - Measurement of efficiency on an inclined plane

### experiment "Measurement of efficiency on an inclined plane"

On an inclined plane, the efficiency of a wagon is compared with that of a friction block.

scope of supply
• 1 × String on spool
• 3 × Bosshead with slit
• 1 × Rail 360 mm with bores
• 1 × Rail, 180 mm
• 3 × Clamp slider
• 1 × Dynamometer, 1 N
• 2 × Slotted mass, 50 g, green
• 1 × Leaf spring 150x16 mm
• 1 × Spring 150 mm / 10 N
• 1 × Foam insert for 43010
• 1 × Lever with bores
• 2 × Pulley, unmounted, 43 mm dia.
• 1 × Pulley, unmounted, 43 mm dia. with hook
• 1 × Dish, plastic, yellow 150x140x35mm
• 2 × Holding clip on rod, 15 mm Ø
• 1 × Motorised trolley with threaded rod
• 1 × Steel ball, 12 mm Ø
• 1 × Carton for SEG (large tray)
• 3 × Metal axis 50 mm
• 1 × Metal axis 80 mm
• 4 × Tubular clip, 5x4 mm
• 1 × Storing tray, deep, red
• 1 × Lid for 75028 + 75038
• 1 × Tray insert 35 mm
• 1 × Clamp pipe
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