beams Archives - Free ZIMSEC & Cambridge Revision Notes

June 2016

To investigate whether the length of a beam affects its strength

By garikaib|2017-01-17T11:12:26+02:00June 9th, 2016|Notes, O Level Science Notes, Ordinary Level Notes|

Testing the length and strength of beams

Testing the length and strength of beams ZIMSEC O Level Combined Science Notes: Experiment:To investigate whether the depth of a beam affects its strength

Aim: To show how the length of a beam affects its strength

Materials: drinking straws, clamps, weights

Method

Clamp the ends of a straw […]
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Investigating whether thick beams support more weight

By garikaib|2017-01-17T11:12:27+02:00June 9th, 2016|Notes, O Level Science Notes, Ordinary Level Notes|

Plasticine can be used to model cylinder beams. Image credit wordpress.com

Plasticine can be used to model cylinder beams. Image credit wordpress.com ZIMSEC O Level Combined Science Notes: Experiment: Investigating whether thick beams support more weight

Aim: To show that thicker beams can support more weight

Materials: Plasticine/Stikistuff, wooden board, small cardboard cylinders 2cm in […]

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Testing the strength of various beams

By garikaib|2017-01-17T11:12:28+02:00June 8th, 2016|Notes, O Level Science Notes, Ordinary Level Notes|

Testing the strength of beams

Testing the strength of beams ZIMSEC O Level Combined Science Notes: Experiment: Testing the strength of various beams

Aim: To make different shaped beams and test their strength

Materials: thin pieces of poplar wood, sharp knife, weights, 2 clamps, 2 bricks

Cut beams about 20cm long with different cross-sectional […]
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Demonstrating compression and tensile forces

By garikaib|2017-01-17T11:12:29+02:00June 8th, 2016|Notes, O Level Science Notes, Ordinary Level Notes|

Demonstrating tension and compression forces

Demonstrating tension and compression forces ZIMSEC O Level Combined Science Notes: Experiment: Demonstrating compression and tensile forces

Aim: To demonstrate compression and tensional(stretching forces)

Materials: glue, tissue paper, rubber, two small blocks of wood, plastic ruler/rubber hose

Method Demonstrating tension and compression forces. Image credit MediaWiki

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March 2016

The strength of Materials

By garikaib|2017-01-17T11:14:27+02:00March 15th, 2016|Notes, O Level Science Notes, Ordinary Level Notes|

Different materials have different strength. Image credit wisegeek.com

Different materials have different strength. Image credit wisegeek.com ZIMSEC O Level Combined Science Notes: The strength of Materials

A beam should be made of stronger material so that it can support a greater load
Different materials have different strength
Some material is greater when put […]
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The relationship between a beam’s strength and depth

By garikaib|2017-01-17T11:14:28+02:00March 15th, 2016|Notes, O Level Science Notes, Ordinary Level Notes|

The greater the depth of a beam the more load it can support

The greater the depth of a beam the more load it can support ZIMSEC O Level Combined Science Notes: The relationship between a beam’s strength and depth

A beam is stronger if it’s depth if it has greater depth
For […]
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Strength to Mass ratio

By garikaib|2018-08-15T09:04:50+02:00March 14th, 2016|Notes, O Level Science Notes, Ordinary Level Notes|

The cross section of beams

The cross section of beams ZIMSEC O Level Combined Science Notes: Strength to Mass ratio

Engineers do away with materials that are under little stress so as to be able to build efficient structures in terms of weight and cost
The material that lies close to the neutral […]
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Loading a beam

By garikaib|2017-01-17T11:14:30+02:00March 14th, 2016|Notes, O Level Science Notes, Ordinary Level Notes|

Loading a beam

Loading a beam ZIMSEC O Level Combined Science Notes: Loading a beam

When a beam is loaded it will bend
Bending movement creates stress
The top of the beam is compressed and the underside is stretched
This is because there are compressive forces at the top and stretching/tensile forces at the underside
If […]
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Stress in beams

By garikaib|2017-01-17T11:14:31+02:00March 14th, 2016|Notes, O Level Science Notes, Ordinary Level Notes|

Types of stresses that affect beams. The arrows show the direction of force.

Types of stresses that affect beams. The arrows show the direction of force. ZIMSEC O Level Combined Science Notes: Stress in beams

If a material (beam) is subjected to a force, an equal force acts in the opposite direction
This […]
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An introduction to Beams and their types

By garikaib|2017-01-17T11:14:39+02:00March 7th, 2016|Notes, O Level Science Notes, Ordinary Level Notes|

beams_introduction-min

Common types of beams and their associated forces ZIMSEC O Level Combined Science Notes: An introduction to Beams and their types

A beam is any material that is supported so that it can hold a load
A simple beam is a length of material e.g steel supported along its length so that […]
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June 2016

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March 2016

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