Weights & Masses

What's the difference between Weight and Mass?

Mass is a measurement of how much matter is in an object; weight is a measurement of how hard gravity is pulling on that object. Your mass is the same wherever you are - whether it's on earth, the moon or somewhere in space because the amount we're made of doesn't change. As far as weight, it depends on how much gravity is acting on you at the moment; you'd weigh less on the moon than on earth, and in space you'd weigh almost nothing at all. To measure mass, we'll always need a comparative object and can use a balance scale, for weight, a typical scale or triple balance beam can be used. 

What is the use of Slotted Masses?

Slotted masses are used in student lab classes, to teach physics and other sciences. The slots allow them to be placed on weight hangers, which are lightweight platforms attached to a thin rod with a hook at the top. Various masses are added to the hanger to create the desired amount of total mass (standard masses are 100, 50, 20, 10, 5, 2, and 1 gram), then the combination is hung by the hooked end from a string or other support point.

The slotted mass/weight hanger combination allows a student to quickly create any desired amount of mass, to use in experiments involving force, acceleration, and mass. There are also many other experiments in other fields where a variable hanging mass comes in handy.



Slotted Masses

Product: 3412

Individual slotted masses range from 1g up to 100g for use on rack or 50 gram brass weight hanger.

Made of brass with standard slots as supplied on racks. The slot is 3.5 mm wide and the diameter of the center hole is 6.5 mm.



Slotted Weight Set with Hanger

Product: G2500_12

Includes one 50-gram weight hanger which serves as a base but can also be unscrewed from hooked rod, NINE 20-gram slotted masses, ONE 10-gram slotted mass and TWO 5-gram slotted masses. Packed in a reusable plastic storage case.

Can be used for Hooke's Law demonstrations, Lever/Balance demonstrations and other Physics & Mechanics experiments requiring weights.




Slotted Weights

Product: P52612

Slotted weights with slot for aluminum weight hangers only. Made of aluminum or brass. Note that these slotted weights will not fit with the brass hangers because the inner diameter does not increase at the center.

Available in 9 different masses: 1g, 2g, 5g, 10g, 20g, 50g, 100g, 200g, and 500g. 



Weights or Masses

Product: Weight_5

Small weights or masses are available in a set or for individual sales in 1 gram, 2 grams, 5 grams, 20 grams and 100 grams.

Also available in Set of 5 weights: 1 gram, 2 grams, 5 grams, 20 grams and 100 grams.

Visit ScienceKitStore.com


Masses with Hooks

Product: 3406B

Available in the following weights:

10g, 20g, 50g, 100g, 200g, 500g, 1000g. 

Wood Block Not Included.

Visit ScienceKitStore.com