This Plumb Bob is made from a hexagonal steel rod by carefully machine turning to a sharpened point. Use it for determining center of gravity or for calibrating measuring devices.
• Includes a screwed end cap with a hole to receive a cord
• Approx. 140 g (5 oz)
• Approx. 85 mm (3.33″) L x 20 mm (0.75″) D

Item 3460-00

$2.81

Track for Air Track Apparatus (Item #AR-700).
• 47″ (1200 mm) L

Item AR-701

$160.21

Check out this cool product! Watch the red ball rockets into the air up to 5 times the original drop height! Explore the Law of the Conservation of Energy with this fun, educational item!
• Comes with a Teacher’s guide
Includes:
• Safety goggles
• Extra balls
• Retail packaging

Item 7050-00

$8.00

• AmSci Exclusive
• Video Available

All of our solid steel balls are great for physics experiments and demonstrations! Use them for density and volume measurements, pendulum bob, potential energy and conservation experiments, ballistics, and more. These small spheres make a useful addition to labs and classrooms.
• Sold in a pack of 6
• Made of steel
• 0.5″ (12 mm) Dia.

Item 3484-46

$0.75

All of our solid steel balls are great for physics experiments and demonstrations! Use them for density and volume measurements, pendulum bob, potential energy and conservation experiments, ballistics, and more. These small spheres make a useful addition to labs and classrooms.
• Made of steel
• 0.75″ (19 mm) Dia.

Item 3484-34

$0.49

• Best Seller

All of our solid steel balls are great for physics experiments and demonstrations! Use them for density and volume measurements, pendulum bob, potential energy and conservation experiments, ballistics, and more. These small spheres make a useful addition to labs and classrooms.
• Made of steel
• 1″ (25 mm) Dia.

Item 3484-24

$1.14

All of our solid steel balls are great for physics experiments and demonstrations! Use them for density and volume measurements, pendulum bob, potential energy and conservation experiments, ballistics, and more. These small spheres make a useful addition to labs and classrooms.
• Made of steel
• 0.63″ Dia.

Item 3484-85

$0.45

Solid Steel Ball, 7/8″

Item 3488-78

$0.58

These colliding steel spheres will help demonstrate the Law of Conservation of Energy, and show students how mechanical systems convert energy to heat. When objects collide, the kinetic energy transforms into sound, heat, and kinetic energy in the opposing direction. These steel spheres are a fantastic way to show kids how energy “loss” is actually energy being released as heat! When these two (2) 0.5 lb steel spheres are smashed together, the kinetic energy transforms into enough heat to burn a hole through a piece of paper! The spheres are an excellent way to demonstrate energy transformation! For physics experiments and demonstrations such as kinetic, density, and volume measurements, pendulum bob, potential energy and conservation experiments, ballistics, etc.
• Comes with a Teacher’s Guide
• Sold as a pair
• Made of Steel
• 1.5″ (40 mm) Dia.

Item 3484-38

$10.75